Gunstar
Well-Known Member
- Joined
- Mar 2, 2018
- Messages
- 144
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Is the spin test valid for testing a tube fin rocket (ie: tie a string at the CG, load it with a motor and swing it around in a circle and check that the nose goes first)? I made one that is a 12 inch long bt20 with 6 1 inch bt20 tube fins. According to openrocket it should be very stable, but it fails the spin test. I'm wondering if the circular motion of the spin test works against the stabilizing effect of the tube fins.