[Rhodes22-list] motors
Bill Effros
bill at effros.com
Fri May 30 22:49:35 EDT 2008
Thanks, Michael,
So nice to hear your voice.
B.
michael meltzer wrote:
> Bill get the Yamaha t9.9 high thrust, the issue you are having are not hp,
> but getting the hp into the water, the 11 3/4 inch prop with the high cross
> surface area turning slow (the 2.92 gear ratio) is what you need, have stan
> use the long rails on the boat(i.e they go above the transom) and get the 25
> inch version (it will give you more wave height).
>
> Ran it for years on the sound in gale warnings, all you need, the problem
> when you get down to it is the Tohatsu is designed for a light planning
> boat(i.e. a small high pitched prop turning fast, and changing it prop does
> not help, the "size is constrained" and gear ratio is fixed), it will work
> in claim days but pushing it is fails... not sure the 15 Tohatsu helps,
> still wrong gear/propsize so you will never get the rmp's for the hp (it
> only 15 hp when the motor is turning 5000+ rpm and hull speed will prevent
> that or it will be "forming" up the water without doing much)
>
> -mjm
>
> Ps. What to waste some money on a remote kit on the Tiller?
>
>
>
> -----Original Message-----
> From: rhodes22-list-bounces at rhodes22.org
> [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of Bill Effros
> Sent: Friday, May 30, 2008 9:59 AM
> To: The Rhodes 22 mail list
> Subject: Re: [Rhodes22-list] motors
>
> Too Bad!
>
> The Tohatsu 15 weighs only 114 lbs -- 10 lbs more than the current
> Yamaha 9.9, and about the same as earlier Yamahas that were ripping the
> motor mounts off R-22s. (I've gained more than 10 pounds since I
> started sailing my Rhodes, and I sit in the back of the boat, too.)
>
> Stan can beef up our motor mounts.
>
> What do you suppose would happen if you put the 15 on an R-22?
>
> I'm roughly 35 statute miles from NYC.
>
> It takes me roughly 7 hours motoring each way. (5 mph ((not kph) seems
> to be the top sustainable cruising speed for almost any sailboat in the
> 20-40 foot range as a practical matter.)
>
> Could I travel at 10 mph for 3 1/2 hours if I had a 15 hp motor? Would
> the boat become completely unstable? Has anyone tried?
>
> Bill, you could have been the first!
>
> Bill Effros
>
>
>
> Bdunn1 at aol.com wrote:
>
>> I checked today; the only difference between the 9.8 and the 8 hp has a
>> smaller carburetor and smaller air induction. I purchased the 9.8.
>> Bill Dunn
>>
>>
>>
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