- Jun 11, 2017
- Reaction score
I just finished my LOC-IV (following https://www.jcrocket.com/loc-iv.shtml) and got a final weight and CM measurement. Now OpenRocket is telling me that my stability margin is 0.56 calibers with the motor is included. On one hand that seems low (i.e. <1) but on the other I'd be surprised if LOC/Precision designed a rocket that's unstable for the motor class it's design for. Is this an acceptable stability margin for this rocket, assuming a reasonable amount of wind (e.g. 3-9 fps) and velocity of the rail (e.g. 30fps or 48 fps, depending on the motor)?