# Basic aerodynamics of a rocket

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#### William Carter

##### Active Member
Hello. What are ways to learn the basic aerodynamics and physics of a rocket and how it flies? Is it possible to do this without knowing advanced math like calculus?

Thanks.

#### OKTurbo

##### Well-Known Member
TRF Supporter
Here’s a good article by Tim at apogee. https://www.apogeerockets.com/Peak-of-Flight/Newsletter462

The basic principle to know is that the center of gravity must be forward of the center of pressure for the rocket to be stable. CG is easy to find. It’s where you rocket balances if you hold it on the side of your finger. CP is a little more difficult to find without doing some math or having a simulation software. The old school, paper cut out CP method will get pretty close for simple designs.

Center of gravity is the point on the rocket where mass of the rocket is equal on both ends. Center of pressure is the point on the rocket where aerodynamic forces are equal on both ends.

Hopefully That makes sense, Read the Apogee article and ask questions. There is a lot of knowledge on this board.

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#### jsdemar

##### Well-Known Member

My NAR R&D report is referenced in that lesson.

#### samb

Other good reference sites:

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#### ewomack

##### Well-Known Member
TRF Supporter
I learned quite a bit from this Apogee Video. It won't tell you everything, but it's a good start.

#### Steve Shannon

##### Well-Known Member
TRF Supporter
Get a copy of “The Handbook of Model Rocketry” by G Harry Stine. The most recent edition will be updated by his son Bill Stine. It’s a great reference that explains a lot.

#### Bowman

##### Well-Known Member
Don't forget about Estes site and NAR.
Plenty of basic info on both sites.