I just finished building a Madcow 4" fiberglass Nike Smoke and modified Madcow's Rocksim file as I went with eights I measured and adding everything I put into the rocket.
I ended up with the most accurate Rocksim file I have ever created, but there is one problem. The CG Rocksim tells me I should have for my rocket with no motor is a full 6 inches plus further forward than my measured CG with no motor. I re-checked weights of the nose cone and sustainer, and they matched, as did the placement of all the parts where they are in the rocket.
Does anyone have any idea why the Rocksim CG is so far forward of the measured CG?
Thanks,
Steve
I ended up with the most accurate Rocksim file I have ever created, but there is one problem. The CG Rocksim tells me I should have for my rocket with no motor is a full 6 inches plus further forward than my measured CG with no motor. I re-checked weights of the nose cone and sustainer, and they matched, as did the placement of all the parts where they are in the rocket.
Does anyone have any idea why the Rocksim CG is so far forward of the measured CG?
Thanks,
Steve