Every dollar helps!

These manuals are the culmination of more then 10 years of designand publication and formally sold for $10.00 each. With 54 different

manuals available, that’s a $540.00 value.

Now, due to the worldwide economic collapse, they are my gift to you.My hope is that you will enjoy these great little airplanes as much as I

have enjoyed designing them for you.

You may build as many planes as you like.Sell your planes, or give them away.

Tell ALL your airplane loving friends to come to the site and get asmany of the manuals as they like.

If you enjoy these planes, please help to ensure this site stays on-lineand these airplane manuals remain available for all to enjoy. Any

amount you donate is greatly appreciated.

May God bless you and keep you safe.

Thank You & Enjoy!Wayne

https://www.paypal.com/donate/?token=VRnp-lhMKsIzH8i8L-olCwdxIZyxTExQpmXI9tsDnUToCZpgGaQLaR5xvcqp17f-H1o_1W&country.x=US&locale.x=US

www.bcair.comCopyright © 2013 B. C. Air Originals

Step By Step Construction Plans.36 Pages With Over 100 Full Color Photos showing how to build the

Can be made from most12 or 16 oz Beverage Cans.

Wingspan: 10”Length: 17”Height: 4”

TOP SEC

RET

Northrop F-20Tigershark

Welcome to the B. C. Air Originals Squadron.

This booklet contains complete step by step instructions for building the B. C. AirOriginals - Northrop F-20 Tigershark. Before you start building your first planeit is suggested that you review the entire set of plan directions. Once you have pre-viewed the construction steps you should start collecting the cans that you want touse to make your first plane. These plans are designed to be used with most any 12or 16 oz. beverage can. Always use clean, unscratched and undented cans for thebest looking planes.

Since the building of these planes requires the cutting of cans and the use of sharptools, CHILDREN SHOULD NEVER ATTEMPT THE CONSTRUCTION OFTHESE PLANES WITHOUT ADULT SUPERVISION AND GUIDANCE.CONSUMER ACCEPTS ALL RESPONSIBILITY FOR ANY INJURY IN-CURRED IN THE BUILDING OF THESE PLANES.

It is not necessary to follow all the building steps in the order presented. Such as, ifyou want to make the Wings, or the Tail Section first, you can do that and then setthem aside until you need them. However, until you understand the construction ofthese planes, it may be easier to follow the steps in the order listed. Your very firststep should be to make a copy of all the templates. All templates are drawn toscale. Using a sheet of mylar (Clear Plastic) will enable you to re-use your tem-plates again and again. There is no limit to the number of planes you can build withthese plans.

We, at B. C. Air Originals, will make every effort to assist you in answering anyquestions you may have about the construction of these planes. Please feel free tocontact us ANY TIME at command@bcairoriginals.com.

Thank you for your interest in the B. C. Air Originals and have FUN!

D. P. (Wayne) Mathis

When you print your manuals be sure that your printer is set on it’s MAXprinting area to ensure that all the templates print out to the correct size.The standard 12 oz Can, here in the US, measures 2 1/2" in diameter. If theCans you’re using to make your plane are smaller or larger, then here’swhat you do..... Measure the diameter of your Can and find what percent-age of 2 1/2" it is.... I.e. If your Can measures only 2 1/4" (in diameter)then 2 1/4" is = to 90% of 2 1/2" so you would print out all the templatesat 90% instead of at 100%. If your Can measures 3" (in diameter) then 3"is = to 120% of 2 1/2" so you would print out all of the templates at 120%.etc.Some of these models were originally designed in 1984. Since then thebuilding techniques of these planes has changed over time. I.e. many of theplanes no longer require the use of the wooden former “F-1 & F-2”. Wesimply glue the “B-2’s” onto the BACK (BOTTOM) of the Can “B-1” oruse corrugated cardboard in place of the wood. (See http://www.bcair.com/BT/nwf1.htm and http://www.bcair.com/BT/nf1.htm )Once you’ve reviewed your manual and you’re ready to start your firstplane, go here > http://www.bcair.com/BT/ < and look over the Builder’sTips. These are building tips sent in from builders all over the world. Theywill help you to make these planes easier and faster. Bookmark this page asit is NOT accessible from the main web site.You can obtain the plastic props used on these planes from yourlocal Hobby Shop or here’s where I get my props on-line > http://www3.towerhobbies.com/cgi-bin/wti0091p?&C=QBC&V=MAS http://www3.towerhobbies.com/cgi-bin/wti0097p?FVSEARCH=PROPELLERS+++&CATEGORY=QB&MANUFACTURER=TOP&submit=Submit+AdvancedSearch<Any 5-7" prop, with any pitch, will work on these planes.

http://www3.towerhobbies.com/cgi-bin/wti0097p?FVSEARCH=PROPELLERS+++&CATEGORY=QB&MANUFACTURER=TOP&submit=Submit+AdvancedSearch

The following is a list of tools and materials I use to build these planes.You may find that you do not need all of the tools that I use.Use whatever works best for you.

Push Pin.Hot glue gun.Awl (old screw driver sharpened to a point).Wire cutter.X-acto knife (hobby knife) (box opener).Scissors & Can Opener.Small Paper Cutter, Ruler (straight edge).Felt tip pen (any color).Needle nose pliers.

Materials -

Aluminum Cans (beer, pop, soda, juice, etc) any 12 oz. size will work.Bottle caps.Corrugated Cardboard. Tape (any kind) & Glue (2-Part Epoxy works best).Mylar (Clear plastic).Copper Coated Welding Rod, Music Wire or any other straight wire .

(2 sizes - 1/16” & 3/32”)

Cutting CansThe building of these planes requires that the Tops and/or Bottoms of beverage cans becut off. While you can decide for yourself which method you use to accomplish this,most builders use a Dremal® Tool in a fashion similar to that shown below.

SEE ALL THE BUILDERS TIPS ON-LINE AT > www.bcair.com/BT

What I’ve done here is taken a piece ofboard wood (aprox 12” x 15” x 3/4”) and toit I’ve attached (screw or glue) Two Blocksof wood (2” x 2” x 5”) and Two Rails ofwood (1” x 1” x 10”)

Using a Hose Clamp, I’ve secured myDremal® Tool to the board. The twoguide rails are used to cradle the can.

A cutting wheel is used to cut theBottom and the Top off the Cans.

Again, you can use any other method at your disposal to remove the Tops and Bottomsof the cans. Use whatever means you feel most comfortable with.ALWAYS USE PROTECTIVE HAND & EYE GEAR WHEN CUTTING CANS!

In ALL cases, cutthe Bottom off theCan FIRST, thencut the Top off.Get as much of theCan as possable.

Another Way Of Cutting Cans

Once you’ve selected which Cans your plane will be made out of, take one Can and hold it firmly atit’s bottom. Using your wire snips, cut through the ring at the top of the Can.

Now grab the ring with your wire snips and PULL the top off the Can. The top will normally tare offright where the Can begins to taper inward to the ring.

Continue PULLING until the top of the Can comes off. Then cut down the side of the Can with yourscissors. Next use a smaller scissor to cut the bottom off the Can.

Use a straight edge, or a papercutter to trim the edges smooth.

Trim Can to 3 5/8” x 8 1/4”

SEE ALL THE BUILDERS TIPS ON-LINE AT > www.bcair.com/BT

(This is the method I used to make this plane.)

6

STEP # 2

Once you’ve selected which Cans you’ll beusing to make your plane out of, cut the Topsand Bottoms off 18 Cans and open them upas shown here. (See Page 6)

STEP # 1

This Plane takes a totalof 18 Cans to make.

CanCellophane TapeDouble-Sided Tape

8 1/8”

Marry Three (3) Cans (from Step # 1)together as shown here.

Glue on INSIDE

USE AS MUCH OF THECANS AS POSSABLE

10 1

/2”

STEP # 3

Cut a 4 1/8” x 10 1/2” rectanglefrom the three Cans that youmarried together in Step # 2.This three Can rectangle willcomprise B-1.

4 1/8”

10 1

/2”

STEP # 4

B-1

B-1

Roll B-1 into a cylinder.B-1

STEP # 5

Take any Six ( 6 ) Bottle Caps and glue TWOEACH together, as shown at the Left, to make a“Brace” (F-1’s).

STEP # 6

Put a small drop of Hot Glue on the INSIDE ofB-1, as shown, and stick a Brace, (F-1), to it.

Take an additional Bottle Cap andpaint it Black on the INSIDE.

STEP # 7

STEP # 8Roll B-1 around the F-1’s and hold in place with tape. (Canswill overlap themselves) Working through the openings in bothends of B-1, finish gluing the F-1’s to the INSIDE of B-1.

B-1

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STEP # 9Take the ThirdBrace, F-1, (fromStep 5) and glue itHALF WAY into theFRONT of B-1.

B-1 B-1

Take the Painted Cap(from Step 6) and insert itinto the BACK of B-1.Hold in place with tape.

STEP # 10

STEP # 11

Cut TWO F-2’s (Template # 2 - Page 30) fromcorrugated cardboard and glue them together.Put a “thin” bead of Hot Glue around the edges.

STEP # 12Cut Template # 3 (B-2- Page 30) from a Canand form the BACKend of it around abottle cap. DO NOTGLUE CAP INTOB-2.

Form the FRONT endof B-2 around F-2(from Step 11).

Hold B-2 in shapewith a piece of tape onthe OUTSIDE.

Remove the bottle capand glue ”HALF” ofF-2 on the INSIDE ofB-2.

Also glue B-2 togetheron the INSIDE.

B-2B-2

F-2

F-2

F-2F-2

DO NOT GLUE IN PLACEUNTIL STEP # 24.

TAB goes on the INSIDE

B-1B-2

B-3

B-3

B-2

B-1

B-3

B-3

STEP # 13

Glue B-2 to theFRONT of B-1.Trim whereneeded to get a

STEP # 14Cut B-3 (Template # 4 - Page 30) from Can and form into shape. Hold it’s shape with a piece oftape on the OUTSIDE and glue on the INSIDE.

tight fit over the F-1.

Note that B-3DOES NOTcome to a point.

STEP # 15

Glue B-3 over F-2 on the Frontof B-2. Trim where needed to geta tight fit.

Fill the hole, in the Front of B-3,with Hot Glue.

The Overlap of the Can, on B-2, shouldbe on the BOTTOM of the Plane.

The Overlap of the Can, on B-3, shouldbe on the BOTTOM of the Plane.

The Overlap of the Cans, on B-1, should be on the TOP of the Plane.

TAB goes on the INSIDE

STEP # 16Tape Template # 1 (Page 29) around B-1 and, using your Push Pins, make Holes A, B, C & D.

Also make Holes E & F.

STEP # 17

Take Two pieces of 3/32” Rod, 6” long, and insert them through Holes A, & B in B-1. Glue the Rods in place with equal parts protruding on each side of B-1.

The Overlap of the Cans, on B-1, should be the TOP of the Plane.

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STEP # 18

Cut Two WBC(Template # 5 Page31) from corrugatedcardboard and coverthem with Cans asshown. Cover theTOP of the wingFirst, folding theleading and trailingedges around thecardboard.

WBC WBC

Left WingTop Side Left Wing

Bottom Side

Finish Left Wing.

Note that the Bottom Can extends1/4” beyond the WBC where it willattach to B-1.

Repeat Step 18 for the Right Wing.

TOP CAN

Finished Left Wing Finished Right Wing

Don’t worry if the Top Can doesn’t cover the extreme front part of the wing, This part ofthe wing will be hidden in Step # 27.

Can DOES NOT cover Wing Tip.

STEP # 19 Cut Two HS (Template # 6 Page 31) from corrugated cardboard and cover them withCans as you did the WCB. Cover the TOP of the HS First, and then the Bottom. (THE CAN DOES COVER THE HS WING TIP).

HS

STEP # 20

Cut VS (Template # 7Page 31) from corru-gated cardboard andcover it with Cans asyou did the HS.

VS VS

VS

(THE CAN DOES NOT COVER THE VS BOTTOM).

STEP # 21

Take a piece of corrugated cardboard3/8” x 5” and cover it with a piece ofCan as shown. This will be the VSB.

STEP # 22

Take the wings (fromStep 18) and insertthem onto the rods inB-1. Once you havethem in the positionthat you want them tobe in MARK the insideof the lower Can toindicate where the rodswill insert.

Put some glue onthe rods and onthe WCB edgeand push thewings into place.

B-1

STEP # 23

Back of wing should be 1/2”forward of the back of theCenter Can of B-1.

B-1

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B-1Take Two 3/32” Rods, 3 1/2” long, andinsert them through Holes C & D in B-1.Slide the HS onto the rods and MARKthem as you did the Wings. Put glue onthe rods and on the HS ends and secure inplace.

Back of HS should be 3/8” from the back end of B-1.

HS

STEP # 24

5/8”

1/4”

Take Two 3/32” Rods, 2” long, and insert them into Holes E & F, in B-1.Take the VSB and the VS and MARK where these Rods will insert as shown.Glue the Rods into the VSB and the VS, then insert the Rods back into Holes E & F.REMOVE the Painted Bottle Cap, from the back end of B-1 and working through the open-ing, glue the HS Rods and the VS Rods to the INSIDE of B-1. Glue the Painted Cap back inplace.

B-1

VSB

VS

STEP # 23

VS

VSB

B-1

HS

3/32”RODS

GLUE

GLUE

STEP # 25Cut Two WE’s (Template # 8 - Page 30)from corrugated cardboard and cover withpieces of Can as you did the Wings. WE

WE

STEP # 26

Take Two pieces of 3/32”Rod, 1 1/2” long, and gluethem into the leading edgeof the wings as shown.

1/2”

3/4”

STEP # 27

Put some glue on the Rodsand the WE cardboard,insert the WE’s onto theRods and glue in place.

STEP # 28

Marry Two Cans together as you did inStep # 2 and cut the EI (Template # 9 -Page 32) out of them.

EI

Make a few holes in the sides andTop of B-1. These will give the gluesomething to anchor to.

.

..... .. ..

Put some glue on the edges of EI and on the Top of B-1,around the holes that you made, and place EI in position.

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STEP # 29

Be sure that you’ve notched theEI to allow for the VSB, VSB

EI

EI

VSB

EI

Push the EI down against the Top of B-1,(make sure it is centered) and hold in placewith tape until the glue is dry.

B-1B-2

B-1

STEP # 30EI

B-1B-2

3/4”

Use Duct Tape, orother tape, to accentand soften the EI edgeas shown.

STEP # 31

Marry Two Cans together, as you did in Step # 2, and cut PBB (Template # 10 - Page 31)from them. Place PBB in position on Top of EI and make slits in EI where needed. Putglue on the INSIDE of the PBB and glue it in place. Hold PBB in place with tape until glueis dry.

PBBEI

Cut notch in PBB for VSB. PBB lays flat on EI here, and is 3/4” above EI here.

VSB

STEP # 32

The cockpit canopy (CPC) is made from a clear plasticbottle. The one on the left has the right curvature to itand I got it at Wal-Mart.Trace Template # 11 - Page 30 (CPC) onto it. (You canget Two canopies out of one bottle). Rough cut thecanopy out and then trim it to the proper size.

The forward windshield (FWS) can be cut from any clearplastic bottle.Trace Template # 12 - Page 30 (FWS) onto it. Roughcut it out and then trim it to the proper size.

FWS

FWS

CPC

CPC

STEP # 33

Spray paint the INSIDE of theCPC and FWS Black or Gray.

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STEP # 34

Put some glue on the INSIDE of the CPC and FWS and secure in place.

Note EI goes in the Notch in CPC.

FWS rests ON TOP of CPC.

Adjust Notch for a tight fit.

CPC rests ON TOP of PBB.

STEP # 35

Tape off CockpitCanopy as shown.

STEP # 36

Cut TWO EACH of AID’s (Template #13 - Page 31) and glue them into the EIopening as shown. Trim where necessaryto get a nice fit.

AIDAIDEI

The Black part ofthe AID is bentslightly outward tohide all of the gluingdone inside the EI.

STEP # 37

Cut EAB (Template # 14 - Page 31) from a piece ofCan and form it into a cone as shown. Hold it to-gether on the OUTSIDE with a piece of tape and glueit on the INSIDE.

EAB

EAB

STEP # 38

Glue the EAB onto the back endof the plane, INSIDE the paintedBottle Cap.

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STEP # 39

Glue missiles to wing tips.

There are several ways to make theSidewinder Missiles. Here is onemethod.

Take the plastic tubing from any pumpbottle and cut it to 2 1/2” long.

Take Two pieces of Can3/4” x 1 1/4” and bendthem in half.

Take Two pieces of Can1/4” x 1” and bend themin half.

Take Four pieces of 1/16” Rod, 4”long, and insert them intothe plastic tube. Glue on the pieces of Can and trim them tothe desired shape as shown.

Tubing

Cans

Rods

Tubing

Cans

Rods

Glue Glue

2 1/2”

STEP # 40 - OPTIONAL

Normally, the wheels used on the B. C. Air Original Planes are made from Bottle Caps. In thiscase the Bottle Caps are too large in diameter and they make the plane look funny. The MainLanding Gear Wheels should be 3/4” in diameter and the Nose Wheel should be 1/2” in diam-eter. You can use model airplanes wheels or you can hang you plane or you can display it on aStand like the one here. To make the Stand included in this booklet, cut out the face and thebase, form Page 33, and assemble it as follows. Take a piece of 3/32” Rod, 19” long, and bendone end of it roughly into the shape of the Stand Base.

Then bend therest of the rodroughly intothe shape atthe right, orinto any othershape thatyou’d like.

Next tape theface of theStand to-gether at it’shighest point.

Now tape theRod to theBase asshown.

Insert the Rodthrough thehole, at thehighest pointof the Stand,and check tosee if the Basewill line upwith the Standface. Adjustthe Rod asneeded. Thenfinish tapingthe Rod to theBase.

Insert the Rod back through the hole and tape theBase to the Stand face.

This same type of Stand can be usedon all of the B. C. Air Originals Planes.

Your B. C. Air Originals Northrop F-20 Tigershark is now complete.

Find the Center if Gravity on your Plane.(It should be close to where indicated here)Make a hole, in B-1, just large enough toinsert a piece of 5/32” tubing, 1 1/8” long.Glue tubing all the way into this hole.

Place your Plane onthe stand and adjustas desired.

.

AB

. .

.

To the BACK of the Plane

TEMPLATE # 1

X

X

Y

Y

www.bcair.com X to Y MUST be 3 3/4”X to X & Y to Y should be 9”

When printing out this template.

Cen

ter B

otto

m o

f Pla

ne

29

AB

. .

..

.C C

D D

E

F

.

3 3/4”

From Back of Plane to.....D = 3/4”

From Back of Plane to.....C = 1 1/2”

From Back of Plane to.....F= 1 3/4”

From Back of Plane to.....E = 2 1/2”

From Back of Plane to.....B = 4 1/2”

From Back of Plane to.....A = 6”

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Template # 2

F-2

TAB

B-2

Tem

plat

e #

3

Template # 4

B-3

TAB

Template # 8

WE

30

Template # 11

Template # 12

FWS

CPC

AB

CD

Cut ALL Black lines. Bring A to B

Bring C to D

TEMPLATE # 7

TE

MPL

ATE

# 1

0

TEM

PLAT

E #

6

WCB

Plan

e’s

Bac

kbon

e (P

BB

)

HS

VS

31

TEM

PLAT

E #

5

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AIDTEMPLATE # 13

TEMPLATE # 14AB

(FOLD)

TAB

32

Template # 9

EI(NO TABS)

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Template # 15Main LandingGear Door

Template # 16Nose Wheel Gear Door

ww

w.bcair.com

B. C

. Air

Orig

inal

s

Northrop

F-20

BA

SE

.

33

STEP # 41 - OPTIONAL LANDING GEAR

Main Landing Gear is 1/16” Rod 2 3/8” long.Bend as shown below.

Tubing is optional (1” long).

LG support Rod is 3/32” - 1” long.

1 “

1/2”

3/8”

Nose Wheel Landing Gear is 1/16”Rod 2 3/4” long bent as shownbelow.

Tubing is optional (1” long).

LG support Rod is 3/32” - 1” long.

3/4” Wheel 3/4” Wheel1/2”Wheel

1 “

1/16”1/16”

3/32”

3/32”

You can obtain the right size wheels,

for the Tigershark, from TOWER HOBBIES.

Nose Wheel = 1/2" Item # SULQ2750 $1.66 each

Main Wheels = 3/4" Item # SULQ2751 $1.77 each

34

Ring ElectricalInsulated Terminal# 4-# 6 Stud16-14 AWG

35

STEP # 41 - OPTIONAL LANDING GEAR

If your plane will have Landing Gear,the correct position for the Gear is asfollows.

Nose Wheel: - 4” from Tip of Noseand on the bottom center line of plane.

Main Gear: - 10 3/4” from Tip of Noseand 2 1/4” from center line of plane.

Make 1/16” & 3/32” holes whereneeded and glue Landing Gear andLanding Gear Support Rods inplace as shown.

1/2”

3/8”

1/2”

STEP # 41 - OPTIONAL LANDING GEAR

Mount Wheels ontoLanding Gear.

Glue on Gear Doors.Templates # 15 & 16- Page 32.

Your B. C. Air Originals Northrop F-20 Tigersharkwith Landing Gear in the down position is now complete.

36