Am i doing this right?---i took moments from the transom for the estimated original configuration of a jackshafted diesel and outdrive only in the x direction
engine 136" x 475= 5383 ft#
trans 111" x 75= 693 ft#
j/s & brgs 58 x 75= 362 ft#
55 gal fuel 63" x 440= 2310 ft#---1/2 tank
outdrive 5" x 150= 62ft#
batteries 5" x 120= 50ft#
total 8860ft# cw moment divided by the weight= cg(x)=79" from the transom
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New configuration 30" bracket 675# ob motor
bracket 15.5" x 140= (-180ft#)
bracket bouyancy 676ft# double bracket
motor 30"x675= (-1687ft#)
55 gal fuel= 63" x 440= 2310 ft#---1/2 tank
batteries in console= 1380 ft#
total of 2500ft# cw moment divided by the weight= cg(x)=43" from transom
So if this is correct than it looks like im looking for a lighter engine and a heavier potty---or making some new gas tanks and moving everything up some?
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"Something is happening but i don't know what it is"......R.A. Zimmerman "Ballad of a Thin Man"
Last edited by ledslinger; 11-27-2012 at 01:07 AM.
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