Tev's Water Bottle Rocket

We're Going on a Trip

My Research

Step 1:We have to make a water bottle rocket that functions

Step 2: Brainstorming

Step 3:

Water Bottle RocketThe first form of a rocket came from the Greeks and was developed by Archytas as a steam powered wooden pigeon that would "fly". Steam escaped from within the pigeon and propelled it along a wire. One thousand years ago, the Chinese transitioned from steam powered rockets to the use of gunpowder, creating a move to solid-fuel rockets.The V-2 rocket used a liquid fuel consisting of alcohol and liquid oxygenDrag - Drag is created by air resistance. Imagine running down a track with a small parachute attached to your back. You would notice that it is more difficult to run with the parachute pulling you back versus running with no parachute. The parachute, in this example, causes considerable drag. When a rocket flies through the air, drag pushes back - or resists the rocket's forward motion. A rocket's drag is affected by shape, texture, velocity, as well as other factors.Lift - On a rocket, Lift is a side force used to stabilize and control the direction of flight. This is quite different from the concept of lift as it relates to an airplane. On an airplane, lift is a force that overcomes weight to enable flight. In the Rockets 2.0 application, we will simply discuss the concept of stability to avoid confusion.Thrust - This is the force that produces lift-off, or upward movement of a rocket. Thrust is produced by engines or some other form of propulsion system. For lift-off to be achieved, thrust must exceed weight.Weight - A combination of factors affect the weight of a rocket and can include cargo, passengers, fuel, parts of the rocket, materials, and other items. Weight is related to mass, but also includes the gravitational pull of the Earth.Rocket rotates around the center of gravityFenders keeps the rocket stableWeather could be a big setback momentum= mass x velocityMass of the rocket is being decreased as the burnout is in phaseAir density changes with altitudePurpose of thrust is to get it to get higher and add a little stabilityfor every action there is a reactionDrag is air >:resisitanceStability- static margin has to = or be > the bottle diameter

Step 4:
AllowablesAllowedDesignedParachute RecoveryYesYesBottle Size20oz, 1L, 2L2L
Rocket Design InputsMinimumMaximumDesignedAir Pressure--70 psi70.0 psiNose Length--228 mm226.0 mmNumber of Fins--44Parachute Size--279.4 mm279.4 mmFin/Launcher Interference

PASSFin Validation

PASSParachute Deploy Status

BudgetMinimumMaximumDesignedDesign Cost--$ 6.00$ 3.58

Step 5:

Fins will have to be different like to be in a different shape Weight will have to be less Had to change the cone a lot so I would have to work on that

Step 6:

Has to fit on launching mechanismHas to be a 2 liter bottleMust come off of the pumpMust be met at a deadline

Step 7:

I have made a final decision for the rocket above. The only disadvantage to my rocket is the weight and how fast it will fall. It is less weight and has a better chance at staying in air

Step 9

Step 10: Refining

If I had to do this over I would...

Use a smaller parachute so it would deploy and make the weight less like making the clay ball lighter and not so much paint so the parachute could deploy.

Step 11: Creating It

I would need these things:





Step 12

Communicating processes and results

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