For a typical water rocket, it doesn't matter much. Three squares or triangles, about four to ten square inches in size, 120 degrees apart, as far below the center of mass (balance point) as you can put them, will do well enough. Use any stiff plastic and a lot of Duct Tape. Try to glue them on as close to vertical as you can - or if you want the rocket to spin, try tilting them all the same way a couple degrees. (A small amount of spin may help stability; a lot will cut down your altitude greatly). A water rocket isn't going to be very stable at the best of times, since the water tends to slosh around, and the fins can't do much about that. (A little bubble bath in the water, shaken up to get some foam, may help.)
yah but whatever else u wnt man(:
Add guide fins to the body of the rocket.
by water being placed into the bottle and then, when you launch your rocket, the rocket will spin (if it has at least 2 fins) and the water will spurt out and make the rocket go higher in the air. (Tip:the more it spins,the higher it will fly)
There does not appear to be a "best" size. It depends on a number of factors, to include the bottle used (brand of drink & manufacturer), type of rocket, distance aiming for. One common element to consider is drag. Larger fins have greater surface and mass which will directly affect the altitude your rocket can reach.
Newton's first law, which dictates that objects will maintain their current states of stillness or motion unless acted upon, affect rockets in two ways.First, it establishes the need to exert a massive force to get a rocket off the ground: not only to simply get moving but also the overcome the force of gravity being exerted on the rocket while on the ground.Second, it explains why rockets do not need so much thrust once they do get into space. According to the first law, as long as the rocket doesn't have to alter its speed or direction, it doesn't need to exert any more force. This is why space-bound vessels are calculated on such careful trajectories--to allow for their natural tendencies of motion to carry them to their destinations.
A bullet flies almost at a straight line because: 1) it has a very high velocity 2) it spins around itself, and due to the conservation of angular momentum it is less affected by air drag.
the best fins for a bottle rocket is having four fins located at the bottom of your bottle rocket the shape of long triangles ! ! ! :) hope it helps !
About 50 Degreise
You use fins and a nose cone on a bottle rocket because the cone reduces the drag on the rocket, and the fins help stabilize the rocket.
Right angle fins is the best
Yes as it control the dirctions of the rocket.
3
Add guide fins to the body of the rocket.
Fins are used to help keep a rocket stable. The only way to find out if more fins will make it more stable is by testing it.
3 t05 fins
Angle the fins so it spins, like a screwdriver
plastic
plastic or paper