ChrisLentz
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- Joined
- Apr 11, 2016
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I have been building rockets for about a year.
I have Rocksim.
My understanding....
Rocksim will calculate where my CP is based on the dimensions of my airframe.
The CG variable doesn't matter as much during design because you can always change the CG very easily with nose ballast.
As long as I keep my static stability margin at a stable distance as the end result, I should be able to reach the altitudes simulated.
Am I way off base here with the simplicity of the build?
Design a rocket, use the CP determination by Rocksim, maintain a SSM by adjusting your CG. Fly.
Could it really be that simple to DESIGN and complete a rocket?
My first scratch E30T-7 was built with this concept and it looked like it went exactly as the sim projected. Without my altimeter onboard it is hard to tell but the timing went according to sim.
I did adjust to the weight of the motor when designing taking in mind shift in CG as the propellant is exhausted.
Mass and CG override is my friend.
The point is I guess I am trying to make is...could it be this simple as to not really worry about the CG during the design phase.
I have Rocksim.
My understanding....
Rocksim will calculate where my CP is based on the dimensions of my airframe.
The CG variable doesn't matter as much during design because you can always change the CG very easily with nose ballast.
As long as I keep my static stability margin at a stable distance as the end result, I should be able to reach the altitudes simulated.
Am I way off base here with the simplicity of the build?
Design a rocket, use the CP determination by Rocksim, maintain a SSM by adjusting your CG. Fly.
Could it really be that simple to DESIGN and complete a rocket?
My first scratch E30T-7 was built with this concept and it looked like it went exactly as the sim projected. Without my altimeter onboard it is hard to tell but the timing went according to sim.
I did adjust to the weight of the motor when designing taking in mind shift in CG as the propellant is exhausted.
Mass and CG override is my friend.
The point is I guess I am trying to make is...could it be this simple as to not really worry about the CG during the design phase.