counter rotating engine

[bonitoman]

If I use a 150 counter rotating engine as my main engine could this create some problems other than the prop spinning an opposite direction and instead of two engines there would be one on my 19 foot hull?

 

[nebraska_woody]

Re: counter rotating engine

Bonitoman,<br /> Doing some research for myself on props, I've learned that the reason the drivers seat is positioned on the starboard side of the boat is to counter-act the "rolling" effect that the prop on a standard-rotation motor has on a boat. The clockwise rotation of a prop wants to make the boat lean or roll left, thus putting the driver on the starboard side evens out the weight/roll characteristics you have. As I see it, if you use a counter-rotating motor on your boat as only source of power, with the driver being on same side as the force of the prop wants to roll the boat, you will get a lot of leaning of the boat when driving straight... in which would probably need to counteract that effect with trim tabs or something. I know what i'm trying to say, but does this make sense when you read it?

 

[bonitoman]

Re: counter rotating engine

My hull is a center console, so what that make any difference? Thanks

 

[nebraska_woody]

Re: counter rotating engine

PS... that would also make the handling characterists of the boat way out of line and possibly dangerous to you. In my mind, you would have to be driving the boat from the portside in order to have that motor work for you properly.

 

[93bronco]

Re: counter rotating engine

find your self a standard rotation lower unit.<br />alot cheaper than swapping whole motor.<br />will need prop to go with.

 

[DJ]

Re: counter rotating engine

bonitoman,<br /><br />You can do it. You probably won't notice anything. <br /><br />The disadvantages would be.<br /><br />1. Prop. selection will be somewhat limited.<br /><br />2. Resale value.<br /><br />If the lower unit ever goes out, have it rebuilt as a standard rotation. No big deal.