"basskisser" wrote in message
m...
"Calif Bill" wrote in message
link.net...
"bobl" wrote in message
...
I just bought a new 18' North River Mariner and am considering how to
mount downriggers. The boat has 1-1/4" rails all around and no good
flat spot on the gunwales to fasten a mounting plate. Scotty's is the
only manufacturer I could find that has a downrigger mount for this
size rail that I could find. Anyone have any experience with this
kind of setup or have an additional idea?
thanks,
bob


I have a 21' Jetcraft but it does not have rails all the way around. I
mount on the flat spot on the gunnel where the rail ends.. The ones
with
rails I have seen, have a L shaped flat on top plate welded between the
rail
and the gunnel. Do not think I would mount to the rail only. Lots of
torque when the ball gets hung up, or a big jelly fish is caught on the
wire. Would be the same with a lot of weeds.
Bill

Torque? How does it twist around it's long axis? Perhaps you meant a large
moment?

No, I meant torque. A long trailer tongue will get you a large moment.
When you hang up a ball, that torque is translated into spinning the
attachment to the rail. Down rigger, rod holder. Or ripping the downrigger
off the boat. Same as the torque on a head bolt. Even if it is not moving
the torque wrench torques the crap out of the bolt.