Parts Wanted Northwind 20 strut rudder assy wanted

[David Krienke]

Ok I have been working on the nortwind 20 getting it ready to paint and happened to pick up a 40 hull as well. It has the Drive shaft strut off to one side I noticed and wanted to know if before I go any further if I should remove the drive strut and make it centered. Or was there a reason they had done it that way thinking maybe for torque steer problem? If anyone has the setup sheet for the 40 I would love to have a copy.

 

[Steve White]

There are arguments to where it should be. I always ran them offfset out of the propwash just like how the hydroplanes were setup.

 

[David Krienke]

There are arguments to where it should be. I always ran them offfset out of the propwash just like how the hydroplanes were setup.

This is the drive strut I am wondering about . if you look in the pic its curved to one side and not coming straight with the boat but is thrusting left .

 

[Steve White]

This is the drive strut I am wondering about . if you look in the pic its curved to one side and not coming straight with the boat but is thrusting left .

Geez what an airhead. Strut and thrust line offsets are also done. Thrust line offset and alignment is done. I have offset driveline to the left to give more riding surface on the right side of the hull to counter torque porposing oscillation. I don't know what effect left offset alignment would have.

Somebody on the forum will most certainly know.

 

[David Krienke]

Geez what an airhead. Strut and thrust line offsets are also done. Thrust line offset and alignment is done. I have offset driveline to the left to give more riding surface on the right side of the hull to counter torque porposing oscillation. I don't know what effect left offset alignment would have.

Somebody on the forum will most certainly know.

I am curious and unsure what it will do having it off to the left also. The only thing I could thing of is maybe to keep the boat from torque steering left or maybe it yawing in the turns . Hoping someone will chime in and let us know as well. Thanks for replying Steve I appreciate it.

 

[Steve White]

The thing is that torque will steer it right not left. Yes, the explanation will be interesting. You many find that left alignment isn't what you want in the boat. I would think that thrust alignment offset would be just the opposite?

Somebody 'splain this please.