10 ft Inflatable Can I use a long shaft engine??

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Mollie and Josh
Posts: 15
Joined: Feb 8th, '05, 14:05
Location: Former owner of Typhoon, Now just a powerboat.

10 ft Inflatable Can I use a long shaft engine??

Post by Mollie and Josh »

Hi all,
We did not get the Typhoon in this year. But we are doing plenty of other fun things this summer so I don't feel so bad.

We have a 10 foot Achilles that we got from a friend this year with a wood transom. It can take up to an 8 horse motor.

We have a long shaft 4 horse from the typhoon, besides adding to the draft of the dingy, is there any reason not to use the long shaft on the achilles?
Thanks
Josh
PS: We are considering selling our typhoon, it is located in Ipswich, MA. If anyone is interested, contact me and we can discuss.
Ted Kennedy

of course you can

Post by Ted Kennedy »

just make sure you don't hit my Oldsmobile with that long shaft.
Oswego John
Posts: 3535
Joined: Feb 5th, '05, 20:42
Location: '66 Typhoon "Grace", Hull # 42, Schooner "Ontario", CD 85D Hull #1

LONG SHAFT ENGINE

Post by Oswego John »

"To be, or not to be, that is the question."

What question?
Whether 'tis nobler in mind to be politically correct and ignore the previous post or burst out in a belly laugh, like I did.

ROTFLMAO :D
Tsk, Tsk
O J
Mark Bacon

Down with PC-LMOA too

Post by Mark Bacon »

If using that long shaft outboard as a blender as the Senior Senator would do: beware of getting a bad ice cube.

I beleive many a democrat has gotten a hold of a bad ice cube sailing on John Kerry's Skaramoosh (a Tartan) too.

Proving once again that politics and water don't mix ;-)
Oswego John
Posts: 3535
Joined: Feb 5th, '05, 20:42
Location: '66 Typhoon "Grace", Hull # 42, Schooner "Ontario", CD 85D Hull #1

10' Inflatable - Long Shaft Engine

Post by Oswego John »

Mollie and Josh,

Now that the spontaneous fun and games are hopefully over, let's try to get back to the business at hand. (I still smile at the reference to the Chappaquiddick bridge) :D


Sure, you can use the long shafted engine on your inflatable. There are two things that others in your situation do.
Many small engines have a lock holding the shaft in place while in use. The reason for the lock is that when the motor is shifted into reverse, the wheel is counter rotating and has a tendency to pivot the shaft on it's motor mount(s) and raise the prop to the surface.

This feature can work in your behalf. If you are familiar with a kick-up rudder or center board and how and why they work, if you are in shallow water, the engine can kick up also. If you are going slowly, a little cavitation for a short period won't do much harm. It's better than a chopped up prop. If you are in deep water, you have no problem.

Secondly, forget aesthetics and flowing design lines, (you already did with the use of an inflatable). A second piece of wood can be attached to the original motor mount to elevate the engine higher than normal . This reduces the depth of the prop in the water. For instance, if your shaft is 4" longer than a short shafted motor, raise the mount about 4".

To be honest, I wouldn't change a thing. Maybe I'd sit midships and buy myself a throttle/shift extension handle.. Whatever you decide, try the simple things before you do anything drastic.

Good luck,
O J
Still chuckling a bit :D
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M. R. Bober
Posts: 1122
Joined: Feb 6th, '05, 08:59
Location: CARETAKER CD28 Flybridge Trawler

Helium

Post by M. R. Bober »

You could raise the motor mount (per O John,) or just use helium to inflate your tubes. The boat will float higher in the water, so there will be less shaft in the water. The elegant solution is the simple one.

Mitchell "call me Ockam" Bober
Sunny Annapolis (where razors dull when the legislature is in session) MD
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