Re: WWP-19 Outboard Motors

Tim Spofford (tims@spof.org)
Sat, 07 Aug 1999 11:40:14 -0700


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West Wight Potter Website at URL
http://www.lesbois.com/wwpotter/
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Thanks, Bill, but that wasn't my question. With a P19, what kind of
fore-aft adjustment might one need to make to achieve, say, a 20 lb
adjustment +/- in tongue weight? I suppose it shouldn't be all that hard
to trial-and-error, but if your or someone else has any objective
information, through experience or engineering principles, it would be
useful to know.

At 01:40 PM 08/07/1999 -0700, you wrote:
>You want 10% of trailer weight at the tongue. This is so that
>the cg (center of gravity) of the trailer stays in front of the
>trailer wheels. If it gets neutral of aft, the trailer gets
>squirrely and can "ground-loop."
>
>The all-up weight of your trailer, boat, and gear ought to be
>about 1,700-1,800#. Thus, you want about 170-180# at the
>tongue. Place the tongue on a bathroom scale to measure it.
>
>Bill Longyard
>
>Tim Spofford wrote:
> >
> > - - - - - - - - - - - - - - - - - - - - - - - - - - -
> > West Wight Potter Website at URL
> > http://www.lesbois.com/wwpotter/
> > - - - - - - - - - - - - - - - - - - - - - - - - - - -
> > Ted...
> >
> > My guess is that, given the weight and location of the keel, a very slight
> > adjustment of the trailer could have a pretty significant effect on all
> > this. Can anybody comment beyond the "guessing" point?
> >
> > Tim
> >
> > At 12:48 PM 08/07/1999 -0400, you wrote:
> >
> > >When I bought my P19 #626 it was too far aft on a Shoreline
> > >(1990) trailer. It wasn't even balanced properly with motor
> > >off. I carry motor in pickup bed, but moved the whole winch
> > >assembly forward on the trailer. Rides better. I think the
> > >boat is supported bette also.
> >
> > >Tim Spofford wrote:
> > > >
> > >snip
> > > -
> > > > When I tried to tow my P19 with the motor on (an older 4.5hp 2-stroke
> > > > Evinrude), it - together with the half-full gas can and a few other
> > > > inconsequential odds and ends in the cockpit - shifted the center of
> > > > gravity aft of the axle, not a good situation.
> > >
> > >snip
> >
> > Tim Spofford Kirkland, Washington
> > tims@spof.org http://spof.org
> >
> >