n27sb
N27SB
- Joined
- Jan 30, 2015
- Messages
- 779
- Reaction score
- 458
I have used Rocksim for many years but there is one issue I am not sure how to work around.
If I design a small rocket say 24mm x 20" long Rocksim will give me an acceptable stability margin with a certain size fin if the Barrowman option is on.
If I select the 2d paper cutout option it will be marginal or unstable.
In all instances a swing test and even real flight usually will be unstable. As the rocket size gets bigger in diameter this goes away.
For this reason I usually have to go up to a margin of 2.5 or more.
Any ideas.
The only response from Apogee was "Your fins look too small"
If I design a small rocket say 24mm x 20" long Rocksim will give me an acceptable stability margin with a certain size fin if the Barrowman option is on.
If I select the 2d paper cutout option it will be marginal or unstable.
In all instances a swing test and even real flight usually will be unstable. As the rocket size gets bigger in diameter this goes away.
For this reason I usually have to go up to a margin of 2.5 or more.
Any ideas.
The only response from Apogee was "Your fins look too small"