I built a LOC Warlock for my upcoming L2 attempt. Trying to make sure it's stable. Would appreciate review of my analysis,...
The Warlock RKT file on the LOC site shows CP @ 36.3", CG @ 33.0", 115 oz with no motors. Stability 0.43 cal without motors. Stability 0.16 cal with a J270 motor.
My as-built Warlock is weighing in at 128oz with no motors. CG is 2" behind the CP. (Thought I was fairly judicious with the epoxy,... but I guess still used way too much?!)
I updated the ORK file with actual weight of the body, actual weight of the nosecone, and actual overall CG. (ORK file is attached.)
In order to get stability without motors back to 0.43 cal, I think I will need to add about 16 oz of weight to the nosecone. Stability with the J270 motor calculates to 0.21 cal.
1lb seems like a lot of weight to add, but worried it might still not be enough? Does this analysis sound right? Is a .43 cal stability (0.21 cal with motor) ok?
The Warlock RKT file on the LOC site shows CP @ 36.3", CG @ 33.0", 115 oz with no motors. Stability 0.43 cal without motors. Stability 0.16 cal with a J270 motor.
My as-built Warlock is weighing in at 128oz with no motors. CG is 2" behind the CP. (Thought I was fairly judicious with the epoxy,... but I guess still used way too much?!)
I updated the ORK file with actual weight of the body, actual weight of the nosecone, and actual overall CG. (ORK file is attached.)
In order to get stability without motors back to 0.43 cal, I think I will need to add about 16 oz of weight to the nosecone. Stability with the J270 motor calculates to 0.21 cal.
1lb seems like a lot of weight to add, but worried it might still not be enough? Does this analysis sound right? Is a .43 cal stability (0.21 cal with motor) ok?