[Rhodes22-list] Eric and Motor size for the Rhodes 22 (Get good PFD and Locator Device
Hank
hnw555 at gmail.com
Tue Sep 2 18:18:44 EDT 2008
Eric,
It's not so much the amount of throttle as it is the weight of the engine.
The transom was not designed to handle the heavier weight of a 25hp engine.
There was already one previous rhodie who had their transom ripped out by
the engine, although I don't recall the exact circumstances. You should
quickly beef up the support in the transom for that engine, if you are
going to keep it on the boat.
Hank
On Tue, Sep 2, 2008 at 5:37 PM, Eric Nelson <errorinspelling at gmail.com>wrote:
> Nope Not looking for a powerboat, Was looking more for the long shaft. It
> just happened that the 25 horse motor was attached to it and it was cheap.
> I
> really doubt that I am going to be running it all that much since my
> primary
> source of propulsion is of course.... Wind Power. And if I were running it
> I
> doubt I'd take it over 7 knots.
>
> In taking everyones advice to heart though, the 25 horse will probably stay
> on there till I can find sutable <10HP Long shaft. Until then I will
> obviously keep a moderate control on the throttle.
>
> Thanks for the information everyone.
>
> --Eric
>
> On Tue, Sep 2, 2008 at 6:50 AM, Tootle <ekroposki at charter.net> wrote:
>
> >
> > Eric:
> >
> > If you want a power boat, a.k.a. stinkpot, then get one. However, when
> > dealing with a small sailboat there are other things to understand before
> > you hang a large motor off the transom.
> >
> > The Rhodes 22 transom is neither designed nor made for a 25 H.P motor. A
> > 25
> > H.P. motor will apply too much torque to the motor mount and the
> structure
> > of the transom.
> >
> > Yes you may have been physically able to do it and it worked for a short
> > time. However, the structure just might fail after some fatique to the
> > fiberglass and attaching points. Consider that it might fail in a storm
> in
> > the sound?
> >
> > If you want to hang a 25 H.P. motor from a Rhodes 22 sailboat then you
> need
> > to rebuild and reinforce the transom substantially. You would have to
> > reinforce the whole transom and adjoining hull walls to handle the
> fatigue
> > and stress you are causing. That would be a lot of glass work and sealed
> > plywood to create the stucture able to routinely handle that stress and
> > torque.
> >
> > Stop and imagine the transom falling off in the middle of the sound with
> > the
> > motor visiting Davy Jones.
> >
> > Yes they put big motors on current MacGregor 26's. The transom and boat
> > are
> > designed to handle those things. Mac 26's are really Motor Boats with
> > sails
> > as accessories.
> >
> > If you go out again with this combination, have a good PFD with GPS
> Locator
> > so they can find you. See page 33 of current West Marine Cat.
> >
> > Ed K
> > Greenville, SC, USA
> >
> >
> >
> >
> >
> > Rik Sandberg-2 wrote:
> > >
> > > Eric
> > >
> > > 25 hp = overkill times about 4
> > >
> > > Agree that you do need at least a 20 inch shaft, 25 is better.
> > >
> > > Rik
> > >
> > > Ayn Rand was a prophet - - it isn't my fault
> > >
> > >
> > >
> > > Eric Nelson wrote:
> > >> Ok so I upgraded the motor on my Rhodes. This of course has been
> frought
> > >> with it's own troubles such as leaking seals, spun bushing on the prop
> > >> that
> > >> no one carries anymore, starter drive gear worn out. but this is all
> > just
> > >> extra work. What I am really curious about is how well the Rhodes will
> > >> take
> > >> havign a 25 horse motor pushing it through the water. I had a fair bit
> > of
> > >> trouble with the 9.5 short shaft out on the Sound, keeping the prop in
> > >> the
> > >> water and fighting the tidal currents really made getting anywhere
> when
> > >> the
> > >> wind just wouldn't cooperate. So am I looking damaging the hull by
> > >> pushing
> > >> the boat harder, should I add more support to the whole transom or
> will
> > I
> > >> just need it on the motor mount.
> > >>
> > >> -Eric
> > >> 1978 Rhodes 22 Continental
> > >> __________________________________________________
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> >
> > --
> > View this message in context:
> >
> http://www.nabble.com/Motor-size-for-the-Rhodes-22-tp19264553p19270670.html
> > Sent from the Rhodes 22 mailing list archive at Nabble.com.
> >
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