3 stem water rocket how to with fin templates
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Water Rocket
THE Challenge: Teams (of 2) will design, build and test a water rocket designed to stay aloft for the greatest amount of time.
The competition requirements:Th
1. The rocket’s “Pressure Vessel”: a. The “pressure vessel” is the part of the rocket that connects to the launcher
and is filled with water and pressurized air. b. The pressure vessel must be made out of a single 2-‐liter plastic carbonated
bottle (a soda bottle). c. Label may be removed, but must save it for the competition at the safety
inspection. d. Only TAPE may be used on the pressure vessel; glue may be used in other
parts of the rocket assembly, just not on the pressure vessel. e. No alterations may be made to the pressure vessel.
2. The Rocket’s Nose:
a. The nose must be blunt (flat) or rounded; nothing sharp or pointed! b. The width of the nose must be at least 2.5cm (radius of 1.25 cm)
3. The Rocket’s Fins:
a. The fins must be at least 5 cm from the mouth of the pressure vessel: this is the “No Fin Zone”. b. The fins may be any shape. c. Only tape may be used to attach fins to the pressure vessel.
4. Recovery System:
a. Any recovery system is allowed.
5. Safety Requirement: a. Participants must wear eye protection when launching the rocket!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Research questions: go to tinyurl.com/wdstem
1. What kind of engineer designs and builds flying crafts such as planes, rockets,
and satellites? _____________________________________
2. What is Newton’s Third Law of Motion?
TEAM MEMBERS:
____________________________________
____________________________________
WD STEM Website
Nose: At least 2.5 cm
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:! %a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The% rocket%pressure%vessel%must%be%made%out%of%a% single%2Uliter%plastic% carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The% structural% integrity% of% the% pressure% vessel%must% not% be% altered.% This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,% sanding,% using% hot% or% super% glues).% Alteration% to% the% structural%integrity% of% the% pressure% vessel% is% a% safety% violation% of% the% rocket% and% it%must% not% be% launched.% Event% supervisors% must% assess% the% structural%integrity% by% looking% through% the% nozzle% and% sides% of% the% bottle% for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use% a%nose% that% is% sharp,% pointed,% or% consisting%of% a% rigid% spike% regardless%of% the%material%used.%
e. Explosives,% gases% other% than% air,% chemical% reaction,% pyrotechnics,% electric% or% electronic% devices,%elastic%powered%flight%assists,% throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All% rockets% must% be% launched% using% the% launcher% provided% by% the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5% cm% or% higher% above% the% level% of% the% bottle’s% opening% to% ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any% freeUfall% recovery%system% is%allowed%provided% it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams% must% arrive% at% the% competition% site% ready% to% launch.% Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also! present! labels! from! the! pressure! vessel! if! labels! were! removed.% Following% the% safety%
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:! %a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The% rocket%pressure%vessel%must%be%made%out%of%a% single%2Uliter%plastic% carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The% structural% integrity% of% the% pressure% vessel%must% not% be% altered.% This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,% sanding,% using% hot% or% super% glues).% Alteration% to% the% structural%integrity% of% the% pressure% vessel% is% a% safety% violation% of% the% rocket% and% it%must% not% be% launched.% Event% supervisors% must% assess% the% structural%integrity% by% looking% through% the% nozzle% and% sides% of% the% bottle% for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use% a%nose% that% is% sharp,% pointed,% or% consisting%of% a% rigid% spike% regardless%of% the%material%used.%
e. Explosives,% gases% other% than% air,% chemical% reaction,% pyrotechnics,% electric% or% electronic% devices,%elastic%powered%flight%assists,% throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All% rockets% must% be% launched% using% the% launcher% provided% by% the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5% cm% or% higher% above% the% level% of% the% bottle’s% opening% to% ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any% freeUfall% recovery%system% is%allowed%provided% it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams% must% arrive% at% the% competition% site% ready% to% launch.% Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also! present! labels! from! the! pressure! vessel! if! labels! were! removed.% Following% the% safety%
2.1 Conduction of Energy Name: _______________________#___ Date: ___________________________ MATERIALS: Styrofoam cup, thermometer, room temperature water, hot water,
1 set of metal washers on string, safety goggles. LAB A.!!In#Hot#Water!
1. Measure and record the temperature of the washers. (Touching gently on the bottom of the thermometer. When it stops moving, that is the temperature.)
2. Fill the Styrofoam cup with about _____ ml of hot water (get from your teacher). 3. Measure and record the temperature of the hot water. 4. Leave the thermometer in the hot water. Hold the string and slowly lower the metal
washers all the way into the water. 5. Observe any change in the temperature of the water. Leave the metal washers in the
water. Draw and label your experiment at this point. 6. Record the temperature of the water with the metal washers in it. 7. Remove the washers, quickly record the temperature of the washers now. 8. Empty the cup in the sink. 9. Give the metal washers on a string to your teacher.
Lab A. Temperature Before
Together (Hot water + metal washers)
Temperature After
Water in the cup
water Draw and label water
Metal Washers
Washers washers
9. Explain what happened when room temperature washers were placed in hot water.
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
Question:!Why!does!the!temperature!of!matter!change?!!!!!!!
74 Middle School Chemistry Unit ©2011 American Chemical Society
Activity Sheet Name _______________________Chapter 2, Lesson 1Heat, Temperature, and Conduction Date ________________________
In this activity, you will place a room-temperature set of washers in hot water and then place a set of hot washers in room-temperature water. Find out what happens to the temperature of each.
ACTIVITY
Question to investigateWhy does the temperature of an object change when it is placed in hot water?
Materials for each group2 sets of large metal washers on a stringStyrofoam cup !lled with hot waterRoom-temperature water2 thermometersGraduated cylinder or beaker
Procedure
Room-temperature washers placed in hot waterPlace a thermometer in your cup to measure the initial 1. temperature of the water. Record the temperature of the water in the “Before” column in the chart on the activity sheet. Be sure to also record the initial temper-ature of the water in the control cup. Use another thermometer to measure the temperature 2. of the washers. Record this in the “Before” column. With the thermometer still in the water, hold the 3. string and lower the metal washers all the way into the water. Observe any change in the temperature of the 4. water. Leave the washers in the water until the temperature stops changing. Record the tem-perature of the water in each cup in the “A"er” column. Remove the washers from the water. #en take 5. and record the temperature of the washers in the “A"er” column.Empty the cup in a waste container or sink. 6.
74 Middle School Chemistry Unit ©2011 American Chemical Society
Activity Sheet Name _______________________Chapter 2, Lesson 1Heat, Temperature, and Conduction Date ________________________
In this activity, you will place a room-temperature set of washers in hot water and then place a set of hot washers in room-temperature water. Find out what happens to the temperature of each.
ACTIVITY
Question to investigateWhy does the temperature of an object change when it is placed in hot water?
Materials for each group2 sets of large metal washers on a stringStyrofoam cup !lled with hot waterRoom-temperature water2 thermometersGraduated cylinder or beaker
Procedure
Room-temperature washers placed in hot waterPlace a thermometer in your cup to measure the initial 1. temperature of the water. Record the temperature of the water in the “Before” column in the chart on the activity sheet. Be sure to also record the initial temper-ature of the water in the control cup. Use another thermometer to measure the temperature 2. of the washers. Record this in the “Before” column. With the thermometer still in the water, hold the 3. string and lower the metal washers all the way into the water. Observe any change in the temperature of the 4. water. Leave the washers in the water until the temperature stops changing. Record the tem-perature of the water in each cup in the “A"er” column. Remove the washers from the water. #en take 5. and record the temperature of the washers in the “A"er” column.Empty the cup in a waste container or sink. 6.
2013%NCSO%It’s%Elementary%M
anual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournam
ent,%teams!construct!tw
o!rockets%designed%to%stay%aloft%for%the%greatest%am
ount%of%time.%
2. NCSCoS!ALIGNM
ENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM
!OF!UP!TO:!%2%%
4. MAXIM
UM!!TIM
E:!!10%min.%
!5.
TEAMS:!!M
ust!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!
glasses.%%
6. EVENT!LEADERS:!!W
ill%provide%water%rocket%launcher,%w
ater,%score%sheets,%and%timers.%
%7.
SAFETY!REQUIREMENTS:!Team
s%must%w
ear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%
!9.
THE!COM
PETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%w
ith%water%and%air.%The%rocket%pressure%vessel%m
ust%be%made%out%of%a%single%2Uliter%plastic%carbonated%
beverage%bottle%with%a%neck/nozzle%opening%internal%diam
eter%of%approximately%2.2%cm
%(a%1/2%inch%Schedule%40%PVC%pipe%m
ust%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%rem
oved%from%the%
bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!com
ponents!to!the!pressure!vessel.!No!glues!of!any!type!m
ay!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!
assembly.!M
etal!of!any!type!and!commercial!m
odel!rocket!parts!are!prohibited!anyw
here!on!the!rocket.!!c. The%structural%integrity%of%the%pressure%vessel%m
ust%not%be%altered.%This%includes,%but%is%not%lim
ited%to:%physical,%thermal,%or%chem
ical%damage%(e.g.,%
cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%m
ust%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%w
alls.%%d. Rockets%m
ust%use%a%blunt%or%round%nose%with%a%m
inimum
%radius%of%1.25%cm,%for%safety%(see%Figure%1).%
Teams%m
ust%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%material%used.%
e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%
elastic%powered%flight%assists,%throw
ing%devices,%remote%controls%and%tethers%are%prohibited%at%any%
time.%All%energy%im
parted%to%the%rocket%at%launch%must%originate%from
%the%w
ater/air%pressure%combination.%
f. All%rockets%must%be%launched%using%the%launcher%provided%by%the%
supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%
5%cm%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%
rockets%fit%on%the%launcher%(see%Figure%2).%%g. Any%freeUfall%recovery%system
%is%allowed%provided%it%does%not%violate%
any%other%rule;%however,%the%recovery%system
%must%be%judged%as%safe.%
h. Teams%m
ust%arrive%at%the%competition%site%ready%to%launch.%Team
s%must%bring%and%w
ear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!m
ust!also!present!labels!from
!the!pressure!vessel!if!labels!were!rem
oved.%Following%the%safety%
2013%NCSO%It’s%Elementary%M
anual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournam
ent,%teams!construct!tw
o!rockets%designed%to%stay%aloft%for%the%greatest%am
ount%of%time.%
2. NCSCoS!ALIGNM
ENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM
!OF!UP!TO:!%2%%
4. MAXIM
UM!!TIM
E:!!10%min.%
!5.
TEAMS:!!M
ust!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!
glasses.%%
6. EVENT!LEADERS:!!W
ill%provide%water%rocket%launcher,%w
ater,%score%sheets,%and%timers.%
%7.
SAFETY!REQUIREMENTS:!Team
s%must%w
ear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%
!9.
THE!COM
PETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%w
ith%water%and%air.%The%rocket%pressure%vessel%m
ust%be%made%out%of%a%single%2Uliter%plastic%carbonated%
beverage%bottle%with%a%neck/nozzle%opening%internal%diam
eter%of%approximately%2.2%cm
%(a%1/2%inch%Schedule%40%PVC%pipe%m
ust%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%rem
oved%from%the%
bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!com
ponents!to!the!pressure!vessel.!No!glues!of!any!type!m
ay!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!
assembly.!M
etal!of!any!type!and!commercial!m
odel!rocket!parts!are!prohibited!anyw
here!on!the!rocket.!!c. The%structural%integrity%of%the%pressure%vessel%m
ust%not%be%altered.%This%includes,%but%is%not%lim
ited%to:%physical,%thermal,%or%chem
ical%damage%(e.g.,%
cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%m
ust%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%w
alls.%%d. Rockets%m
ust%use%a%blunt%or%round%nose%with%a%m
inimum
%radius%of%1.25%cm,%for%safety%(see%Figure%1).%
Teams%m
ust%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%material%used.%
e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%
elastic%powered%flight%assists,%throw
ing%devices,%remote%controls%and%tethers%are%prohibited%at%any%
time.%All%energy%im
parted%to%the%rocket%at%launch%must%originate%from
%the%w
ater/air%pressure%combination.%
f. All%rockets%must%be%launched%using%the%launcher%provided%by%the%
supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%
5%cm%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%
rockets%fit%on%the%launcher%(see%Figure%2).%%g. Any%freeUfall%recovery%system
%is%allowed%provided%it%does%not%violate%
any%other%rule;%however,%the%recovery%system
%must%be%judged%as%safe.%
h. Teams%m
ust%arrive%at%the%competition%site%ready%to%launch.%Team
s%must%bring%and%w
ear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!m
ust!also!present!labels!from
!the!pressure!vessel!if!labels!were!rem
oved.%Following%the%safety%
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The%rocket%pressure%vessel%must%be%made%out%of%a%single%2Uliter%plastic%carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The%structural%integrity%of%the%pressure%vessel%must%not%be%altered.%This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%must%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%material%used.%
e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%elastic%powered%flight%assists,%throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All%rockets%must%be%launched%using%the%launcher%provided%by%the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5%cm%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams%must%arrive%at%the%competition%site%ready%to%launch.%Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also!present!labels!from!the!pressure!vessel!if!labels!were!removed.%Following%the%safety%
FORCE MOTION
Hot to construct a water rocket I. Mark Fin Location.
a. Select how many fins: 3 FINS or 4 FINS b. Cut out the Fin Location Strips for your # of fins. c. Wrap around Pressure Vessel and mark both sides. d. Draw a long line through the marks along the bottle.
II. Make Fins. III. Nose Cone (Padded)
a. Cut the base off of a second 2 Liter bottle. b. Leave the cap on it. c. Hot glue a Foam Donut around the cap to the bottle. d. Slide the Nose Cone bottle onto the Pressure Vessel.
IV. CG: Center of Gravity (Balance Test)
a. **The “Center of Gravity” must be above the fins on the pressure vessel, but not past the top of the pressure vessel.
b. Add mass to nose cone or on top of the pressure vessel until the CG (center of gravity) is “just right”.
c. To find the Center of Gravity, balance the rocket on a string.
d. Mark the Center of Gravity with
V. Go Fly! Fill Pressure Vessel ¼ to 1/3 full with water.
2013%NCSO%It’s%Elementary%Manual%
©2013%NCSO%%%Revised%10/5/13%%% 9
Figu
re 2
3,#2,#1,#Blast#Off!#
#1.
DESCRIPTION:!Prior%to%the%tournament,%team
s!construct!two!rockets%designed%to%stay%aloft%for%the%
greatest%amount%of%time.%
2. NCSCoS!ALIGN
MENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!
%3.
TEAM!OF!UP!TO
:!%2%
%4.
MAXIMUM!!TIME:!!10%min.%
!5.
TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!rem
oved),!and!safety!
glasses.%
%6.
EVENT!LEADERS:!!W
ill%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%
%7.
SAFETY!REQUIREM
ENTS:!Teams%m
ust%w
ear%eye%protection%during%the%loading,%launching,%and%
retrieving%of%their%rockets.%%
%8.
IMPO
UND:!!No%
!9.
TH
E!COMPETITION:!%
a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%
water%and%air.%The%rocket%pressure%vessel%m
ust%be%made%out%of%a%single%2Uliter%plastic%carbonated%
beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%
Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from
%the%
bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!
of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!
assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!
prohibited!anywhere!on!the!rocket.!!
c. The%structural%integrity%of%the%pressure%vessel%must%not%be%altered.%This%
includes,%but%is%not%limited%to:%physical,%thermal,%or%chem
ical%dam
age%(e.g.,%
cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%
integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%
must%not%be%launched.%Event%supervisors%m
ust%assess%the%structural%
integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%
discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum
%radius%of%1.25%cm,%for%safety%(see%Figure%1).%
Team
s%must%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%
material%used.%
e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%
elastic%pow
ered%flight%assists,%throw
ing%devices,%remote%controls%and%tethers%are%prohibited%at%any%
time.%All%energy%im
parted%to%the%rocket%at%launch%must%originate%from
%the%water/air%pressure%combination.%
f. All%rockets%must%be%launched%using%the%launcher%provided%by%the%
supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%m
ust%be%
5%cm%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%
rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%not%violate%
any%other%rule;%how
ever,%the%recovery%system
%must%be%judged%as%safe.%
h. Teams%must%arrive%at%the%competition%site%ready%to%launch.%Teams%
must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!
also!present!labels!from
!the!pressure!vessel!if!labels!were!removed.%Following%the%safety%
2013%NC
SO%It’s%Elem
entary%M
anual%
©2013%N
CSO%%%Re
vised%10
/5/13%%% 9
Figure
2
3,#2,#1,#Bla
st#Off
!##
1. DESCRIPTION:!Prior%to%the
%tourn
ament,%teams
!constru
ct!two!rockets%designed%to%stay
%aloft%for%the
%gre
atest%a
mount%of%time
.%
2. NCSCoS!AL
IGNM
ENT:!Grades%3U6
%Scien
ce:%Scien
ce%and%T
echnolog
y,%Science
%as%Inquiry!
%3.
TEAM
!OF!UP
!TO:!%2%
%4.
MAXIM
UM!!TIME:!!10
%min.%
!5.
TEAM
S:!!Must!brin
g!labele
d!rockets,!carbonate
d!bevera
ge!bo
ttle!labels
!(if!remo
ved),!an
d!safe
ty!gla
sses.%
%6.
EVENT!L
EADERS:!!W
ill%pro
vide%w
ater%rock
et%lau
ncher,%wa
ter,%sc
ore%sheet
s,%and%tim
ers.%
%7.
SAFETY!RE
QUIREM
ENTS:!Team
s%must
%wear%eye
%prote
ction%du
ring%the%loading
,%launching,%an
d%retrievin
g%of%th
eir%rocke
ts.%%
%8.
IMPO
UND:!!No
%!
9. TH
E!COM
PETIT
ION:!%
a. Rocke
t%pres
sure%vess
els%are%the%pa
rt%of%the
%rocke
t%that%attach
es%to%the
%launche
r%and%are%fille
d%with%
water%an
d%air.%The%rock
et%pre
ssure%ves
sel%must
%be%made%o
ut%of%a%sing
le%2Uliter%p
lastic%carbo
nated
%bever
age%bo
ttle%with%a%neck/
nozzle%o
penin
g%inte
rnal%diam
eter%of%approx
imate
ly%2.2
%cm%(a%1/
2%inch
%Sch
edule
%40%PV
C%pipe
%must
%fit%tig
htly%inside%the%n
ozzle%opening
).%Labels%may%be%remo
ved%fro
m%the
%bottle
%but%la
bels%m
ust%be%prese
nted%at%th
e%safety%inspection.%
b. On
ly!tap
e!must!be!u
sed!to!attac
h!fins
!and!o
ther!com
ponents
!to!the!p
ressure!vesse
l.!No!g
lues!
of!any!type!m
ay!be
!used!on
!the!p
ressure!vesse
l.!Glue
!may!be
!used!in!other!parts!of!the
!rocket!
assem
bly.!M
etal!of!any!type!an
d!com
mercial!mo
del!rocket!parts!are!
prohibited
!anyw
here!on!the!rocket.!!
c. The%stru
ctural%integ
rity%o
f%the%p
ressur
e%vess
el%mu
st%not%be%a
ltered
.%This%
includ
es,%bu
t%is%no
t%limited
%to:%physical,%the
rmal,%or%che
mical%da
mage%(e.g.,%
cutting,%san
ding,%using%ho
t%or%super%
glues)
.%Alteration
%to%th
e%stru
ctural%
integr
ity%of%the%p
ressur
e%vess
el%is%a%safety%vio
lation
%of%the%rock
et%and%it%
must%
not%b
e%lau
nched.%E
vent%s
uperv
isors%
must%
assess
%the%struct
ural%
integr
ity%by%loo
king%thr
ough%th
e%nozzle%and%sides%
of%the
%bottle%
for%
discolora
tion,%b
ubble
s,%thin
ning%or%cuts
%in%the%w
alls.%%
d. Rocke
ts%must
%use%a%blunt%or%round%no
se%with%a%m
inimu
m%rad
ius%of%1.2
5%cm,%for%safety%(se
e%Figu
re%1).%
Team
s%must
%not%use%a%n
ose%that%is%sha
rp,%po
inted,%or%consisting%o
f%a%rigid
%spike%regar
dless%of%the
%ma
terial%used.%
e. Explo
sives,%ga
ses%ot
her%than%a
ir,%che
mical%re
action
,%pyro
technics,%electric%o
r%electronic%de
vices,%
elastic%p
owere
d%flight%ass
ists,%thro
wing%de
vices,%remo
te%con
trols%a
nd%tethe
rs%are
%prohibited
%at%an
y%tim
e.%All%e
nergy
%imparted%to%the%rocke
t%at%la
unch%mu
st%origin
ate%fro
m%the
%water/air%pres
sure%com
bination.%
f. All%ro
ckets%mu
st%be%launche
d%using%th
e%launch
er%pro
vided%by%t
he%
superv
isor.%F
ins%an
d%othe
r%parts%added%to%the%p
ressur
e%vess
el%mu
st%be%
5%cm%or%h
igher%
above%t
he%level%of%the%bottle’s
%openin
g%to%ensur
e%roc
kets%fit%o
n%the%lau
ncher%(se
e%Figu
re%2).%%
g. Any%free
Ufall%reco
very%system
%is%allow
ed%pr
ovide
d%it%does%n
ot%vio
late%
any%othe
r%rule
;%how
ever,%the%recov
ery%system%mu
st%be%ju
dged%as%safe.%
h. Team
s%must
%arrive%a
t%the%co
mpetition%s
ite%re
ady%to%launch
.%Team
s%mu
st%bring%and%we
ar%safety
%glasse
s%for%lo
ading
,%launching,%an
d%retrieving
%their%rocke
ts.%Team
s!must!
also!prese
nt!lab
els!from
!the!p
ressure!
vesse
l!if!labels
!were
!remo
ved.%Following%th
e%safety%
OPTION A: Fold-‐over Fin with Tabs (Plastic pocket folder or Cereal Box) 1. Select Fin template and cut out around the
Tab. 2. Trace template onto Fin material ***Be sure
the Leading Edge is next to a Folded side! 3. Cut out Fins. 4. Mark and fold the Tabs out: 1.5 cm Tabs. 5. Fold and hot glue the two sides of each fin
together in the middle. **You can add extra material in the middle for added stability.
6. Center each fin to the marked lines on the Pressure Vessel.
7. Tape the tab of the fins to the vessel. *Be sure it is 5 cm from the opening of the bottle!
OPTION B: Thick Fin Glued to a Tab (Plastic CD, Chipboard, Cardboard, Corrugated Plastic)
1. Select Fin template and cut out without the
Tab. 2. Trace template onto Fin material. 3. Cut out Fins. 4. Cut out a rectangular Tab about 1 inch wide to
attach along the bottom of the fin. (Use scrap plastic bottle or scrap plastic pocket folder)
5. Hot glue each fin to a Tab. **Be sure it is straight!
6. Center each fin to the marked lines on the Pressure Vessel.
7. Tape the tab of the fins to the vessel. *Be sure it is 5 cm from the opening of the bottle!
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:! %a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The% rocket%pressure%vessel%must%be%made%out%of%a% single%2Uliter%plastic% carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The% structural% integrity% of% the% pressure% vessel%must% not% be% altered.% This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,% sanding,% using% hot% or% super% glues).% Alteration% to% the% structural%integrity% of% the% pressure% vessel% is% a% safety% violation% of% the% rocket% and% it%must% not% be% launched.% Event% supervisors% must% assess% the% structural%integrity% by% looking% through% the% nozzle% and% sides% of% the% bottle% for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use% a%nose% that% is% sharp,% pointed,% or% consisting%of% a% rigid% spike% regardless%of% the%material%used.%
e. Explosives,% gases% other% than% air,% chemical% reaction,% pyrotechnics,% electric% or% electronic% devices,%elastic%powered%flight%assists,% throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All% rockets% must% be% launched% using% the% launcher% provided% by% the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5% cm% or% higher% above% the% level% of% the% bottle’s% opening% to% ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any% freeUfall% recovery%system% is%allowed%provided% it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams% must% arrive% at% the% competition% site% ready% to% launch.% Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also! present! labels! from! the! pressure! vessel! if! labels! were! removed.% Following% the% safety%
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:! %a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The% rocket%pressure%vessel%must%be%made%out%of%a% single%2Uliter%plastic% carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The% structural% integrity% of% the% pressure% vessel%must% not% be% altered.% This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,% sanding,% using% hot% or% super% glues).% Alteration% to% the% structural%integrity% of% the% pressure% vessel% is% a% safety% violation% of% the% rocket% and% it%must% not% be% launched.% Event% supervisors% must% assess% the% structural%integrity% by% looking% through% the% nozzle% and% sides% of% the% bottle% for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use% a%nose% that% is% sharp,% pointed,% or% consisting%of% a% rigid% spike% regardless%of% the%material%used.%
e. Explosives,% gases% other% than% air,% chemical% reaction,% pyrotechnics,% electric% or% electronic% devices,%elastic%powered%flight%assists,% throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All% rockets% must% be% launched% using% the% launcher% provided% by% the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5% cm% or% higher% above% the% level% of% the% bottle’s% opening% to% ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any% freeUfall% recovery%system% is%allowed%provided% it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams% must% arrive% at% the% competition% site% ready% to% launch.% Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also! present! labels! from! the! pressure! vessel! if! labels! were! removed.% Following% the% safety%
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:! %a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The% rocket%pressure%vessel%must%be%made%out%of%a% single%2Uliter%plastic% carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The% structural% integrity% of% the% pressure% vessel%must% not% be% altered.% This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,% sanding,% using% hot% or% super% glues).% Alteration% to% the% structural%integrity% of% the% pressure% vessel% is% a% safety% violation% of% the% rocket% and% it%must% not% be% launched.% Event% supervisors% must% assess% the% structural%integrity% by% looking% through% the% nozzle% and% sides% of% the% bottle% for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use% a%nose% that% is% sharp,% pointed,% or% consisting%of% a% rigid% spike% regardless%of% the%material%used.%
e. Explosives,% gases% other% than% air,% chemical% reaction,% pyrotechnics,% electric% or% electronic% devices,%elastic%powered%flight%assists,% throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All% rockets% must% be% launched% using% the% launcher% provided% by% the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5% cm% or% higher% above% the% level% of% the% bottle’s% opening% to% ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any% freeUfall% recovery%system% is%allowed%provided% it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams% must% arrive% at% the% competition% site% ready% to% launch.% Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also! present! labels! from! the! pressure! vessel! if! labels! were! removed.% Following% the% safety%
2013%NCSO%It’s%Elem
entary%Manual%
©2013%NCSO%%%Revised%1
0/5/13%%% 9
Figu
re 2
3,#2,#1,#Blast#Off!#
#1.
DESCRIPTION:!Prior%to%the%tournament,%teams!construct!tw
o!rockets%design
ed%to%stay%aloft%for%the%
greatest%am
ount%of%time.%
2. NCSCoS!ALIGN
MENT:!Grades%3U6%Scien
ce:%Science%and%Technology,%Scien
ce%as%Inquiry!
%3.
TEAM
!OF!UP!TO:!%2%
%4.
MAXIMUM
!!TIME:!!10%m
in.%
!5.
TEAM
S:!!Must!bring!labeled!rockets,!carbonated!beverage!b
ottle!labels!(if!removed),!and!safety!
glasses.%
%6.
EVENT!LEAD
ERS:!!W
ill%provide%w
ater%rocket%launcher,%water,%score%sheets,%and%timers.%
%7.
SAFETY!REQUIREMENTS:!Teams%m
ust%w
ear%eye%protection%d
uring%the%loading,%lau
nching,%and%
retrieving%of%their%rockets.%%
%8.
IMPO
UND:!!No%
!9.
THE!COMPETITION
:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%lau
ncher%and%are%filled%with%
water%and%air.%The%rocket%pressure%vessel%must%be%made%out%of%a%single%2Uliter%plastic%carbonated%
beverage%bottle%with%a%neck/nozzle%opening%internal%diam
eter%of%approxim
ately%2.2%cm%(a%1/2%inch%
Schedule%40%PVC%pipe%m
ust%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%rem
oved%from
%the%
bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. On
ly!tape!must!be!used!to!attach!fins!and!other!co
mponents!to!the!pressure!vessel.!No!glues!
of!an
y!type!m
ay!be!u
sed!on!the!p
ressure!v
essel.!Glue!may!be!u
sed!in!other!parts!of!the!rocket!
assembly.!Metal!of!any!type!and!co
mmercial!model!ro
cket!parts!are!
prohibited!anyw
here!on!the!rocket.!!
c. The%structural%integrity%of%the%pressure%vessel%m
ust%not%be%altered.%This%
includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%dam
age%(e.g.,%
cutting,%sanding,%using%hot%or%super%glu
es).%Alteration%to%th
e%structural%
integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%
must%not%be%launched.%
Event%supervisors%m
ust%assess%the%stru
ctural%
integrity%by%looking%through%the%nozzle%
and%sides%of%the%bottle%for%
discoloration,%bubbles,%th
inning%or%cuts%in%the%w
alls.%%
d. Rockets%m
ust%use%a%blunt%or%round%nose%w
ith%a%minimum
%radius%of%1.25
%cm,%for%safety%(see%Figu
re%1).%
Team
s%must%not%use%a%nose%that%is%sh
arp,%pointed,%or%co
nsisting%of%a%rigid
%spike%regardless%o
f%the%
material%used.%
e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%
elastic%p
owered%fligh
t%assists,%throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%
time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%
the%w
ater/air%pressure%combination.%
f. All%rockets%must%be%launched%using%the%lau
ncher%provided%by%the%
supervisor.%Fins%an
d%other%parts%added%to%the%p
ressure%vessel%m
ust%be%
5%cm%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%
rockets%fit%on%the%launcher%(see%Figu
re%2).%%
g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%n
ot%violate%
any%other%rule;%ho
wever,%the%recovery%system%must%be%judged%as%safe.%
h. Team
s%must%arrive%at%the%com
petition%site%ready%to%launch.%Teams%
must%bring%and%wear%safety%glasses%for%loading,%lau
nching,%and%retrieving%their%rockets.%Team
s!must!
also!present!labels!from
!the!pressure!vessel!if!labels!were!removed.%Following%th
e%safety%
2013%N
CSO%It’s
%Eleme
ntary%M
anual%
©2013
%NCSO%
%%Revise
d%10/5
/13%%% 9
Figure
2
3,#2,#1,#Bla
st#Off!#
#1.
DESCR
IPTION
:!Prior%to%
the%tou
rname
nt,%tea
ms!const
ruct!tw
o!rock
ets%designed
%to%stay%aloft
%for%the
%gre
atest%a
mount
%of%tim
e.%
2. NCSCo
S!ALIG
NMENT:!G
rades%3
U6%Science
:%Scien
ce%and%
Techno
logy,%S
cience
%as%Inq
uiry!
%3.
TEAM
!OF!UP
!TO:!%2%
%4.
MAXIM
UM!!TI
ME:!!10%m
in.%!
5. TEAM
S:!!Mu
st!brin
g!label
ed!roc
kets,!c
arbona
ted!be
verage
!bottle
!labels
!(if!remo
ved),!a
nd!safety!
glasse
s.%%
6. EVENT!L
EADERS:
!!Will%p
rovide
%water%roc
ket%lau
ncher,%
water,%sc
ore%sheet
s,%and%
timers
.%%
7. SAF
ETY!R
EQUIR
EMENTS:
!Team
s%must
%wear%e
ye%pro
tection
%during%th
e%loadi
ng,%lau
nching
,%and%
retriev
ing%of%the
ir%rock
ets.%%
%8.
IMPO
UND:!!No
%!
9. TH
E!COM
PETIT
ION:!%
a. Rock
et%pres
sure%vess
els%are
%the%pa
rt%of%th
e%rocke
t%that%a
ttaches
%to%the
%launch
er%and%
are%fill
ed%wit
h%water%an
d%air.%The
%rocke
t%pres
sure%v
essel%m
ust%be
%made%
out%of%
a%sing
le%2Uliter%pla
stic%carbo
nated%
bevera
ge%bot
tle%wit
h%a%ne
ck/noz
zle%op
ening%
interna
l%diam
eter%of%ap
proxim
ately%2
.2%cm%(
a%1/2%
inch%
Schedu
le%40%P
VC%pip
e%must
%fit%tig
htly%ins
ide%the
%nozzle
%openi
ng).%La
bels%m
ay%be%
remove
d%from
%the%
bottle%
but%lab
els%mu
st%be%pres
ented%at%t
he%safety
%inspec
tion.%
b. Only
!tape!m
ust!be
!used!
to!attach
!fins!and!other
!comp
onents
!to!the!p
ressur
e!vess
el.!No!glu
es!of!a
ny!typ
e!may!
be!use
d!on!the!
pressu
re!ves
sel.!Gl
ue!ma
y!be!u
sed!in!
other!par
ts!of!th
e!rock
et!ass
embly
.!Meta
l!of!an
y!type
!and!c
omme
rcial!m
odel!ro
cket!part
s!are!
prohib
ited!a
nywher
e!on!the!
rocket
.!!c. T
he%stru
ctural%
integrit
y%of%th
e%pres
sure%v
essel%m
ust%no
t%be%a
ltered.%Th
is%includ
es,%but
%is%not
%limited
%to:%ph
ysical,%th
ermal,%or%c
hemical%da
mage%(e.g
.,%cut
ting,%sa
nding,%us
ing%ho
t%or%supe
r%glue
s).%Altera
tion%to%th
e%stru
ctural%
integrit
y%of%th
e%pres
sure%v
essel%i
s%a%safety
%violati
on%of%t
he%roc
ket%an
d%it%
must%
not%be
%launc
hed.%E
vent%s
upervis
ors%m
ust%as
sess%t
he%stru
ctural%
integrit
y%by%l
ooking
%throu
gh%the
%nozzle
%and%s
ides%o
f%the%
bottle%
for%
discolora
tion,%bu
bbles,%
thinnin
g%or%cu
ts%in%th
e%walls
.%%d. R
ockets%mu
st%use%a
%blunt%o
r%round
%nose%w
ith%a%m
inimum
%radius%of%
1.25%cm,%for%saf
ety%(se
e%Figu
re%1).%
Teams%mu
st%not%use
%a%nose
%that%i
s%shar
p,%poin
ted,%or
%consistin
g%of%a%
rigid%s
pike%rega
rdless
%of%the
%ma
terial%use
d.%e. E
xplosives
,%gases
%other
%than%
air,%ch
emical%re
action
,%pyro
techni
cs,%electri
c%or%e
lectronic%de
vices,%
elastic
%powered
%flight%a
ssists,%thr
owing
%devices,%
remote
%contr
ols%an
d%tethe
rs%are%pro
hibited
%at%any
%tim
e.%All%e
nergy%imp
arted%
to%the%
rocket
%at%lau
nch%mu
st%origi
nate%fr
om%
the%wa
ter/air%pr
essure
%combin
ation.%
f. All%r
ockets%m
ust%be
%launc
hed%us
ing%th
e%laun
cher%p
rovide
d%by%t
he%sup
ervisor.%F
ins%an
d%othe
r%parts%ad
ded%to%
the%press
ure%vesse
l%must
%be%
5%cm%
or%hig
her%ab
ove%th
e%leve
l%of%th
e%bottle’s
%openi
ng%to%
ensure
%roc
kets%fit%on
%the%lau
ncher%(
see%Fig
ure%2).
%%g. A
ny%freeUfa
ll%reco
very%system
%is%allo
wed%p
rovide
d%it%do
es%not
%violate
%any
%other%r
ule;%ho
wever
,%the%re
covery
%system
%must%b
e%judge
d%as%sa
fe.%h. T
eams%m
ust%ar
rive%at%th
e%com
petitio
n%site%
ready%
to%lau
nch.%Team
s%mu
st%bring%and%
wear%s
afety%g
lasses%f
or%load
ing,%lau
nching
,%and%re
trievin
g%their%
rocket
s.%Team
s!must
!als
o!pres
ent!label
s!from
!the!p
ressur
e!vess
el!if!l
abels!we
re!rem
oved.%Fol
lowing
%the%s
afety% 2013%NCSO%It’s%Elementary%Manual%
©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%team
s!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%am
ount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!
%3. TEAM
!OF!UP!TO:!%2%%
4. MAXIM
UM!!TIM
E:!!10%min.%
!5. TEAM
S:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!rem
oved),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%tim
ers.%%
7. SAFETY!REQUIREMENTS:!Team
s%must%wear%eye%protection%during%the%loading,%launching,%and%
retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%
!9. THE!COM
PETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The%rocket%pressure%vessel%m
ust%be%made%out%of%a%single%2Uliter%plastic%carbonated%
beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approxim
ately%2.2%cm%(a%1/2%inch%
Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%m
ay%be%removed%from
%the%bottle%but%labels%m
ust%be%presented%at%the%safety%inspection.%b. Only!tape!m
ust!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!
of!any!type!may!be!used!on!the!pressure!vessel.!Glue!m
ay!be!used!in!other!parts!of!the!rocket!assem
bly.!Metal!of!any!type!and!com
mercial!m
odel!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The%structural%integrity%of%the%pressure%vessel%must%not%be%altered.%This%
includes,%but%is%not%limited%to:%physical,%therm
al,%or%chemical%dam
age%(e.g.,%cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%m
ust%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%m
inimum
%radius%of%1.25%cm,%for%safety%(see%Figure%1).%
Teams%m
ust%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%material%used.%
e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%
elastic%powered%flight%assists,%throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%
time.%All%energy%im
parted%to%the%rocket%at%launch%must%originate%from
%the%water/air%pressure%com
bination.%f. All%rockets%m
ust%be%launched%using%the%launcher%provided%by%the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%m
ust%be%5%cm
%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%not%violate%
any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams%m
ust%arrive%at%the%competition%site%ready%to%launch.%Team
s%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Team
s!must!
also!present!labels!from!the!pressure!vessel!if!labels!were!rem
oved.%Following%the%safety%
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:!%a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The%rocket%pressure%vessel%must%be%made%out%of%a%single%2Uliter%plastic%carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The%structural%integrity%of%the%pressure%vessel%must%not%be%altered.%This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,%sanding,%using%hot%or%super%glues).%Alteration%to%the%structural%integrity%of%the%pressure%vessel%is%a%safety%violation%of%the%rocket%and%it%must%not%be%launched.%Event%supervisors%must%assess%the%structural%integrity%by%looking%through%the%nozzle%and%sides%of%the%bottle%for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use%a%nose%that%is%sharp,%pointed,%or%consisting%of%a%rigid%spike%regardless%of%the%material%used.%
e. Explosives,%gases%other%than%air,%chemical%reaction,%pyrotechnics,%electric%or%electronic%devices,%elastic%powered%flight%assists,%throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All%rockets%must%be%launched%using%the%launcher%provided%by%the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5%cm%or%higher%above%the%level%of%the%bottle’s%opening%to%ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any%freeUfall%recovery%system%is%allowed%provided%it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams%must%arrive%at%the%competition%site%ready%to%launch.%Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also!present!labels!from!the!pressure!vessel!if!labels!were!removed.%Following%the%safety%
Zone for Center of Gravity
Add Mass to this area
FIN LOCATION STRIPS 1. Cut out the strips for your selected # of fins. 2. Tape together. 3. Wrap around pressure vessel. 4. Mark BOTH sides of strip on Pressure Vessel. 5. Then connect the marks to make a looooooooong line.
3 FIN
LOCATIO
N STRIP
11. 3 CM
3 FIN DISTAN
CE: 11.3 CM
TAPE HERE
Tape this side on the tab.
3 FIN
LOCATIO
N STRIP
11. 3 CM
3 FIN DISTAN
CE: 11.3 CM
MARK BOTH SIDES
MARK BOTH SIDES
MARK BOTH SIDES
4 FIN
LOCATIO
N STRIP
8.5 CM
3 FIN DISTAN
CE: 11.3 CM
4 FIN
LOCATIO
N STRIP
8.5 CM
3 FIN DISTAN
CE: 11.3 CM
TAPE HERE
4 FIN
LOCATIO
N STRIP
8.5 CM
3 FIN DISTAN
CE: 11.3 CM
4 FIN
LOCATIO
N STRIP
8.5 CM
3 FIN DISTAN
CE: 11.3 C÷÷///M
MARK BOTH SIDES
MARK BOTH SIDES
MARK BOTH SIDES
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:! %a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The% rocket%pressure%vessel%must%be%made%out%of%a% single%2Uliter%plastic% carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The% structural% integrity% of% the% pressure% vessel%must% not% be% altered.% This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,% sanding,% using% hot% or% super% glues).% Alteration% to% the% structural%integrity% of% the% pressure% vessel% is% a% safety% violation% of% the% rocket% and% it%must% not% be% launched.% Event% supervisors% must% assess% the% structural%integrity% by% looking% through% the% nozzle% and% sides% of% the% bottle% for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use% a%nose% that% is% sharp,% pointed,% or% consisting%of% a% rigid% spike% regardless%of% the%material%used.%
e. Explosives,% gases% other% than% air,% chemical% reaction,% pyrotechnics,% electric% or% electronic% devices,%elastic%powered%flight%assists,% throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All% rockets% must% be% launched% using% the% launcher% provided% by% the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5% cm% or% higher% above% the% level% of% the% bottle’s% opening% to% ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any% freeUfall% recovery%system% is%allowed%provided% it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams% must% arrive% at% the% competition% site% ready% to% launch.% Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also! present! labels! from! the! pressure! vessel! if! labels! were! removed.% Following% the% safety%
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:! %a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The% rocket%pressure%vessel%must%be%made%out%of%a% single%2Uliter%plastic% carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The% structural% integrity% of% the% pressure% vessel%must% not% be% altered.% This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,% sanding,% using% hot% or% super% glues).% Alteration% to% the% structural%integrity% of% the% pressure% vessel% is% a% safety% violation% of% the% rocket% and% it%must% not% be% launched.% Event% supervisors% must% assess% the% structural%integrity% by% looking% through% the% nozzle% and% sides% of% the% bottle% for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use% a%nose% that% is% sharp,% pointed,% or% consisting%of% a% rigid% spike% regardless%of% the%material%used.%
e. Explosives,% gases% other% than% air,% chemical% reaction,% pyrotechnics,% electric% or% electronic% devices,%elastic%powered%flight%assists,% throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All% rockets% must% be% launched% using% the% launcher% provided% by% the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5% cm% or% higher% above% the% level% of% the% bottle’s% opening% to% ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any% freeUfall% recovery%system% is%allowed%provided% it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams% must% arrive% at% the% competition% site% ready% to% launch.% Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also! present! labels! from! the! pressure! vessel! if! labels! were! removed.% Following% the% safety%
2013%NCSO%It’s%Elementary%Manual%©2013%NCSO%%%Revised%10/5/13%%%
9
Figure 2
3,#2,#1,#Blast#Off!##
1. DESCRIPTION:!Prior%to%the%tournament,%teams!construct!two!rockets%designed%to%stay%aloft%for%the%greatest%amount%of%time.%
2. NCSCoS!ALIGNMENT:!Grades%3U6%Science:%Science%and%Technology,%Science%as%Inquiry!%
3. TEAM!OF!UP!TO:!%2%%
4. MAXIMUM!!TIME:!!10%min.%!
5. TEAMS:!!Must!bring!labeled!rockets,!carbonated!beverage!bottle!labels!(if!removed),!and!safety!glasses.%%
6. EVENT!LEADERS:!!Will%provide%water%rocket%launcher,%water,%score%sheets,%and%timers.%%
7. SAFETY!REQUIREMENTS:!Teams%must%wear%eye%protection%during%the%loading,%launching,%and%retrieving%of%their%rockets.%%%
8. IMPOUND:!!No%!
9. THE!COMPETITION:! %a. Rocket%pressure%vessels%are%the%part%of%the%rocket%that%attaches%to%the%launcher%and%are%filled%with%water%and%air.%The% rocket%pressure%vessel%must%be%made%out%of%a% single%2Uliter%plastic% carbonated%beverage%bottle%with%a%neck/nozzle%opening%internal%diameter%of%approximately%2.2%cm%(a%1/2%inch%Schedule%40%PVC%pipe%must%fit%tightly%inside%the%nozzle%opening).%Labels%may%be%removed%from%the%bottle%but%labels%must%be%presented%at%the%safety%inspection.%
b. Only!tape!must!be!used!to!attach!fins!and!other!components!to!the!pressure!vessel.!No!glues!of!any!type!may!be!used!on!the!pressure!vessel.!Glue!may!be!used!in!other!parts!of!the!rocket!assembly.!Metal!of!any!type!and!commercial!model!rocket!parts!are!prohibited!anywhere!on!the!rocket.!!
c. The% structural% integrity% of% the% pressure% vessel%must% not% be% altered.% This%includes,%but%is%not%limited%to:%physical,%thermal,%or%chemical%damage%(e.g.,%cutting,% sanding,% using% hot% or% super% glues).% Alteration% to% the% structural%integrity% of% the% pressure% vessel% is% a% safety% violation% of% the% rocket% and% it%must% not% be% launched.% Event% supervisors% must% assess% the% structural%integrity% by% looking% through% the% nozzle% and% sides% of% the% bottle% for%discoloration,%bubbles,%thinning%or%cuts%in%the%walls.%%
d. Rockets%must%use%a%blunt%or%round%nose%with%a%minimum%radius%of%1.25%cm,%for%safety%(see%Figure%1).%Teams%must%not%use% a%nose% that% is% sharp,% pointed,% or% consisting%of% a% rigid% spike% regardless%of% the%material%used.%
e. Explosives,% gases% other% than% air,% chemical% reaction,% pyrotechnics,% electric% or% electronic% devices,%elastic%powered%flight%assists,% throwing%devices,%remote%controls%and%tethers%are%prohibited%at%any%time.%All%energy%imparted%to%the%rocket%at%launch%must%originate%from%the%water/air%pressure%combination.%
f. All% rockets% must% be% launched% using% the% launcher% provided% by% the%supervisor.%Fins%and%other%parts%added%to%the%pressure%vessel%must%be%5% cm% or% higher% above% the% level% of% the% bottle’s% opening% to% ensure%rockets%fit%on%the%launcher%(see%Figure%2).%%
g. Any% freeUfall% recovery%system% is%allowed%provided% it%does%not%violate%any%other%rule;%however,%the%recovery%system%must%be%judged%as%safe.%
h. Teams% must% arrive% at% the% competition% site% ready% to% launch.% Teams%must%bring%and%wear%safety%glasses%for%loading,%launching,%and%retrieving%their%rockets.%Teams!must!also! present! labels! from! the! pressure! vessel! if! labels! were! removed.% Following% the% safety%
MARK BOTH SIDES
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