Quote:
Originally Posted by 6buoys
can anyone give me dimensions on a bracket for a 20. first time building. would like to get some idea. love the stuff i see .and hope mine comes out that good .
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30inches front to back at the top. You can go a little less on a shorter engine possibly?
Height you should figure about 25 inches at the transom and and about 20 at the far aft end not counting the the Flat reinforced area that the top engine mount bolts go through for lack of a better word.
If you do as I have always done and learned. You want to have a flat straight something projecting from the bottom of the hull. running parallel with the bottom and going aft to where the lower unit cav plate will be. This is where the possible improvement in performance comes from. Clean water near the surface lets prop push boat more efficient. You can sometimes raise an engine or prop height 2 to 3 inches higher near the surface with out grabbing air instead of water. Do as I did. Back ward engineer other brackets and hull bottoms and then come up with your best shot!
Width is mostly for floatation at rest or off plane. This is your choice. I will tell you it is a thin line between a bracket and a stepped hull extension if you go to wide. Then you are throwing in a new equation.