Center of Gravity

[Gene H]

I have a 36 ft trawler with twin diesels. I'm changing transmissions and the new output shaft has a two inch drop from the old transmission ouput shaft centerline. This means I have to raise the engines two inches. Does anyone know if that is a minor adjustment or a major adjustment to the boats center of gravity. Obviously the longitudinal c/g goes up verticaly on the boat. Is two inches too much for a 36 ft long, 14 ft wide 10 ton boat? I believe the engine weight is 1200 to 1400 lbs per engine.

[Guillermo]

Boat's COG will rise around 0.25"
Cheers.

[tri - star]

You are right to be carefull.
It WILL effect the C. of G. The wrong way. For stability....

This is one of those Sq. Root multipliers.
Consider: SUVs are only a few inches taller than a conventional
car. - And they are MUCH more prone to rolling over - than a car is.
Never mind the 4 wheel drive.

Stongly suggest - that you seek out a reg. P. Eng. that does marine
stuff. The cost will minimal. By the hour it's hardly any time a'tall.....
Especially, considering the cost of re - floating your vessel !

Cheers !