[Rhodes22-list] Eric and Motor size for the Rhodes 22 (Get goodPFD and Locator Device

Tue Sep 2 19:05:51 EDT 2008

Eric,

The fellow to talk to is Burt Brody.  His R22, the Golden Snooch, fractured 
the transom and now sports an aluminum plate to help the structure of the 
motor mount.  He was in heavy seas and the motor ripped a hole in the 
transom due to the inertial moment of the engine, not the thrust.  He had 
all he could stand just to get back to port.  I know, you will keep the 
throttle below 1/4 speed and always sail in seas of 2' or less.  Expect the 
unexpected.

Mike
s/v Shanghai'd Summer ('81)
Nissequogue River, NY

From: "Hank" <hnw555 at gmail.com>Sent: Tuesday, September 02, 2008 6:18 PM
> 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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>> > >>
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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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