I sense a great deal of the "Dark Arts" flowing through that Skeleton rocket. A D12 3 will just blow it up in the air or on the ground. Be sure no rocket Jedi are around, just Sith.
A few suggestions as we watch your career with much interest.
Lock the skull stiff. Fill it with nose weight to bring CP at least up to mid sternum. Tape all joints. Make sure your motor is powerful enough to safely lift weight and drag. Maybe need a bigger motor???
Wire arms to side.
Lock and Splay legs out. Are they stabilizing fins? Avoid THE BURN!
Trigger Warning: The following suggestion, although technically illegal, will enhance chances of flight success and thus safety. Use a D12 0 with epoxy(preferred) or solid wadding-taped plug. No ejection charge needed for tumble recovery.
Flying with a recovery system would be much cooler and even more dark side. Say a D12 0 with a pinch of black powder on top, ducted to a parachute pack on skeleton's back. Such high drag eliminates need for delay since it will not coast. Again, not for those who trigger at rules non compliance. Consider rear eject for next version...VERY DARK SIDE!
Undead Pist Warrior soaks the tractor motor thrust, just to get his petrified brains blown out.
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Rocket thrust and flame does horrible things to a human spine! Straighten, tape over to hide burn, fly dem bones again!