Paul wrote:

C of G is x inches from the aircraft C of G how far aft should the 13B go
back to compensate for 50 lb? Can someone tell me how to make these
calculations? I'm thinking that I might be able to move the engine back and
shorten (or do without) the prop extension. ....or am I being a bit anal in
trying to calculate all this stuff?
John Slade

You have to do a weight and balance type calculation John. You multiply
the distance from the firewall to the CG of each engine times their weight.

Frank van der Hulst wrote:

Are you sure Paul????

I believe the correct calculation is "multiply the distance from
aircraft CG (NOT firewall) to engine CG by the engine's weight".

Frank.

Thanks Frank for catching that. Good thing you are on here :-)

Paul Lamar
 
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