Hi.
I'm working on my L3 Cert - my rocket is a modified Madcow DX3 XL Fiberglass. Modified by adding a 12" extension to the fin can, and replaced the payload tube with 48" (3' longer total, rocket is now 11'4" tall).
OpenRocket is now saying stability of less than 0.351. I've added (in sim) 24oz of weight into the nose cone, which brings stability to 1.13 calibers. (Using an Aerotech M1297W motor).
Per Robert Galejs' paper, this may be way too low. (https://argoshpr.ch/joomla1/articles/pdf/sentinel39-galejs.pdf)
Should I consider this a long and thin rocket? Any advice on what target stability I should aim for? (no pub intended)
Thanks!
/p
I'm working on my L3 Cert - my rocket is a modified Madcow DX3 XL Fiberglass. Modified by adding a 12" extension to the fin can, and replaced the payload tube with 48" (3' longer total, rocket is now 11'4" tall).
OpenRocket is now saying stability of less than 0.351. I've added (in sim) 24oz of weight into the nose cone, which brings stability to 1.13 calibers. (Using an Aerotech M1297W motor).
Per Robert Galejs' paper, this may be way too low. (https://argoshpr.ch/joomla1/articles/pdf/sentinel39-galejs.pdf)
Should I consider this a long and thin rocket? Any advice on what target stability I should aim for? (no pub intended)
Thanks!
/p