OB placement at transom?

[Rotti]

Howdy,<br /><br />while installing a pair of Doel-fins on my new 440 Lami I was a lttle bit surprised when I saw how motor (40hp Evinrude VRO) has been mounted at the transom: I think its not deep enough but I do not know for sure?! In my opinion the lower part of the outboard (let´s say from that cavitation-plate, where you mount the Doels on) should be either deeper or at least equal to the boat´s bottom, shouldnt it?! I think that my motor is mounted too high, maybe 2 inches- will I loose performance? Do these Doel-fins even have a chance to work correctly if the motors mounted too high on the transom? Any input on this would be appreciated, thanks in advance!<br /><br />Greetings from Germany,<br />Rotti

 

[Jack Shellac]

Re: OB placement at transom?

Generally speaking, the cavitation plate should be even with the bottom of the boat. The usual practice is to start low and raise it one postion at a time until excesive ventilation occurs in turns. Then drop one position for final setting. Good luck.