rocketry 101 available sheet. part of this area of focus includes building your own rocket
TRANSCRIPT
• Rocketry 101 Available Sheet
• Part of this area of focus includes building your own rocket.
Each person needs one plastic soda bottle.
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Learn more: http://www.timhesterberg.net/water-bottle-rockets/how-to
• We will be using water rockets and air pressure. PSI = pressure per square inch
Copyright © 2010 Ryan P. Murphy
• We will be using water rockets and air pressure. PSI = pressure per square inch
Copyright © 2010 Ryan P. Murphy
• We will be using water rockets and air pressure. PSI = pressure per square inch
Copyright © 2010 Ryan P. Murphy
• The pump is used to pressurize the inside of the body tube to provide thrust for the rocket.
Copyright © 2010 Ryan P. Murphy
• Fins are attached to the bottom of the body tube to provide stability during the flight.
Fins cannot be flimsy
Copyright © 2010 Ryan P. Murphy
• Expect Rotation, Center of gravity is important. Don’t be top heavy
• Expect Rotation, Center of gravity is important. Don’t be top heavy
• Rotation is important because the flight path will be more stable.
Copyright © 2010 Ryan P. Murphy
• A rifle is an accurate weapon because the bore of the rifle causes the projectile (bullet) to spiral.
Copyright © 2010 Ryan P. Murphy
• A rifle is an accurate weapon because the bore of the rifle causes the projectile (bullet) to spiral.
Copyright © 2010 Ryan P. Murphy
• Your rocket should be aerodynamic: The least resistance through the air.– Your rocket should have a nosecone.
Copyright © 2010 Ryan P. Murphy
• Lift and Drag – Two aerodynamic forces
• This cheesy rocket design would have too much weight and drag to successfully take off.
• We will have a launch pad
• We won’t have a guidance system like this rocket.
• We won’t have a guidance system like this rocket. – Your rocket should be balanced however and put on
the launch pad for a vertical launch.
• Your rocket should have a payload.
• We will also analyze trajectory / path of rocket when we fire + calculate total elevation.
Copyright © 2010 Ryan P. Murphy
Action
Action
Reaction
Action
Reaction
Limits Drag
Action
Reaction
Limits Drag
Increases Thrust
Action
Reaction
Limits Drag
Increases Thrust
Our “Propellent”
Action
Reaction
Limits Drag
Increases Thrust
Our “Propellent”
Stabilize / Flight Path
Action
Reaction
Limits Drag
Increases Thrust
Our “Propellent”
Stabilize / Flight Path
Action
Reaction
Limits Drag
Increases Thrust
Our “Propellent”
Stabilize / Flight Path
Creates Thrust
Action
Reaction
Limits Drag
Increases Thrust
Our “Propellent”
Stabilize / Flight Path
Creates Thrust
One standard plastic soda bottle is inverted so the opening becomes the nozzle.
One standard plastic soda bottle is inverted so the opening becomes the nozzle.
Another can be cut on the bottom and placed on top to increase height of rocket.
One standard plastic soda bottle is inverted so the opening becomes the nozzle.
Another can be cut on the bottom and placed on top to increase height of rocket.
Nosecone to limit drag
Nosecone to limit drag
Lightweight Payload
Nosecone to limit drag
Lightweight Payload
Fuel / Propellent ¾ filled with water and add detergent
Nosecone to limit drag
Lightweight Payload
Fuel / Propellent ¾ filled with water and add detergent?
Nosecone to limit drag
Lightweight Payload
Fuel / Propellent ¾ filled with water and add detergent?
Sturdy Fins
Nosecone to limit drag
Lightweight Payload
Fuel / Propellent ¾ filled with water and add detergent?
Sturdy Fins
Nozzle
Nosecone to limit drag
Lightweight Payload
Fuel / Propellent ¾ filled with water and add detergent?
Sturdy Fins
NozzleCaution! Nozzle must work with launcher.
Nosecone to limit drag
Lightweight Payload
Fuel / Propellent ¾ filled with water and add detergent?
Sturdy Fins
NozzleAir Pump to add pressure
• Example of a Soda Bottle Rocket.
Full Soda bottle without any cuts or holes
Bottle cut in half
Full Soda bottle without any cuts or holes
Bottle cut in half
Full Soda bottle without any cuts or holes
Nosecone
Bottle cut in half
Full Soda bottle without any cuts or holes
Nosecone