What size bottle is best for a bottle rocket
Is a bigger bottle better for a bottle rocket?
The longer the launch tube the better. The diameter of the launch tube should be as big as possible and should be about the size of the nozzle to reduce the amount of water loss as the rocket accelerates up the tube.
What is the best weight for a bottle rocket?
Cone Weight (.3 – 15 .oz)
However, too much weight will slow its performance, just as too little weight will cause the rocket to spin around its center of gravity. Valid cone weight ranges are . 3 – 15 ounces.
Is it better to have 3 or 4 fins on a bottle rocket?
Three fins are best when designing a high performance, low drag rocket. This allows interference drag (drag caused by interference of the airflow over the body and fins at the junction) to be reduced by 25 percent.
What makes the best bottle rocket?
The most basic bottle rocket will consist of a body made from a soda or pop bottle and fins. Adding a nose cone can greatly reduce resistance and provide an area to add a little weight to help stabilize the rocket in flight.
What is the best size and shape for bottle rocket Fins?
Theoretically, the best fin shape for a rocket is an “elliptical fin shape.”
What size should the fins be on a bottle rocket?
The design formula further provides that the width of each fin should be at least 1.25 times the diameter of the rocket body.
What is the best ratio of water to air in a bottle rocket?
Conclusion. As can be seen from the graphs above the optimum amount of water can greatly vary from 10%-60% depending on your rocket and launcher configuration, however, most rockets will not fall into these extremes. For larger nozzles the optimum is closer to 33% while for smaller nozzles the optimum is closer to 25%.
How tall is a 2 liter bottle?
Typical dimensions: Height 300 to 330 mm (12 to 13 in) Diameter 120 to 100 mm (4.7 to 3.9 in)
What is the best shape for a rocket?
At supersonic speeds (faster than the speed of sound), the best shape is a narrower and sharper point. Rockets with a larger diameter have more drag because there is more air being pushed out of the way.
How do you make a great bottle rocket design for distance?
What is the best material to make fins for a bottle rocket?
Use cardboard, construction paper, or normal paper as material for the fins. Signboards, such as the ones that say “For Rent” or “For Sale” are also very good fin material. Place the fins on the lower part of the rocket. Bend “tabs” into the sides of the fins so that they can attach to the rocket body more easily.
How tall is a Litre bottle?
This bottle is approximately 1ltr (1000ml) capacity. It measures 23.5cms in height, width across base is 10cms approximately.
How much is 2 liters of water in bottles?
A 16.9 oz bottle is 500 ml (or 1/2 liter… so it would take 4 bottles to fill 2 liters. Four 16.9 oz bottles, each being 500 ml ( 0.5 liters) = 2 liters.
How long is a 2 liter bottle in inches?
A conventionally manufactured 2-liter plastic bottle is about 12 inches tall. Bottles of any shape that contains two liters of liquid might have different heights.
Does a rocket need a nose cone?
No matter the size, all rockets must have a body, a nose cone, fins and a propellant system. … This section holds many of the electronics needed to control large rockets. The aerodynamic shape of the nose cone helps prevent air from slowing the rocket. The fins help guide the rocket to fly straight.
Is it better to have a heavier or lighter rocket?
Two projectiles launched at the same speed will also stay in the air for the same amount of time even if one is heavier. However, a heavier rocket won’t be able to speed up as much as lighter one with the same amount of fuel, so the lighter rocket will go faster, higher and will stay in the air longer.
How do you make a pop bottle rocket fly farther?
If you did Part II, you will have noticed that adding a small amount of water to the bottle causes it to fly much farther.
How do you make a water rocket out of a 2 liter bottle?
Push bottom half of two liter bottle upside down into top half – keeps ballast in place. Use small piece of tape to secure bottom piece inside bottle. Place the un-cut 2 liter bottle (pressure vessel) into top half. Try to make bottles straight.
What is the circumference of a 2 L bottle?
The new bottle is “more manageable” to grip because it has a 10.4-inch circumference, compared to 13.4 inches for the old 2-liter bottle.
How many liters is a Coke bottle?
Coca-Cola is usually bottled in bottles of 2 litres, 1.5 litres, 1 or 0.5 litres and in cans of 0.33 or 0.25. It is obvious that the larger the capacity, the higher the price.
How do you keep a rocket straight?
Make the rocket stable by doing one or more of the following:
- Add weight to the nose 
- Increase the fin size.
- Lengthen rocket.
- Move the fins further back.
- Attach fins properly. The fins should be as rigid as possible. They should not flop around.
- Make the fins from a lighter material.
What makes a bottle rocket fly farther?
Because water has a much greater mass than air, it contributes to a much greater thrust (Newton’s 2nd Law). A rocket filled with water will fly much farther than a rocket filled only with air.
Why rocket science is difficult?
Rocket science is hard
And because aerospace combines so many other engineering disciplines (often all rolled into one class!), the workload can easily be a lot heavier than you might expect. … It was a fascinating way to see and understand the science behind aviation technology.