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The fins on early rockets were used to control the direction of flight. Fins act to stabilize the vehicle, too. Most modern rockets have motors mounted on gimbals, so that the trajectory of the rocket can be controlled by changing the direction of thrust. That's why fins are absent on contemporary rockets. Note that they are still present on the small, hobby vehicles because they improve performance.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoThe original purpose of fins was to help stabilize the rocket... if it started to turn out of the line of thrust, the pressure of the air moving against the fins would act to twist it back into line.
Wiki User
∙ 12y agoPossibly to produce stability or a semi-controlled flight (?)
Wiki User
∙ 12y agoTo stabilize it while it is in the air, to keep it on target.
Wiki User
∙ 11y agoTo keep it's flight straight. If you don't have them (and have them very parallel) then the rocket will start to corkscrew in flight and go out of control.
Wiki User
∙ 10y agoNINGUNA
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Why do you use fins and cone for a bottle rocket?
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.
What do rocket fins do on a rocket?
the fin keeps the rocket stable while the rocket flys.hope that helps! POKECARP out
How do fins on a straw rocket affect it's flight?
Fins on a rocket affects its flight by the way they are built on the rocket
What is a disadvantage of having 4 fins on a rocket?
Wat is the disadvantage to having 4 fins on a rocket.?
What is the best fins for the bottle rocket?
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 !
How many fins should a water rocket have?
A water rocket should probably have three to four fins.
What are rocket fins?
Fins are small aerodynamic wings attached to the rear of the rocket. These are to give guidance and stop it from spinning.
Why do water rockets need fins?
Water rockets need fins because the rocket needs to stay in balance....without fins on a water rocket, the water rocket would be going out of control because it is not in balance!
What do the call the wings of the rocket?
Fins.
What stabilizes a rocket?
It's fins
A rocket used for military purposes?
Missiles is a rocket used for military purposes.
Does the sizes of fins affect the rocket fly?
The size of fins affects the stability and angle, small fins are best.
