Engine CG

[mh9162013]

Does anyone know the approximate (or exact) CG point for Estes C11-3 and D12-5 engines?

I'm making dummy engines with spent C11-3 and D12-5 casings and I want to not just get the weight right, but the center of gravity correct (or close to it) as well. And no, I don't have any new/unspent C11 or D12 engines.

Thanks!

 

[GalantVR41062]

I should have a Estes D12-5. I can try and balance it later tonight and post the result.

*I have burned all my D12 motors.

 

[teepot]

CG of a D12 is 1 7/8th from the front. A C11 is 1 3/4 from the front. Front being the ejection charge side.

 

[mh9162013]

CG of a D12 is 1 7/8th from the front. A C11 is 1 3/4 from the front. Front being the ejection charge side.

Thank you!