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Old 07-01-2013   #1
Riverton, Utah
Paddling Since: 2005
Join Date: Jul 2011
Posts: 337
Long or Short shaft?

So getting more serious about a motor for the raft. Is a short shaft (15") long enough or are most people using a long shaft?


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Old 07-01-2013   #2
Join Date: Feb 2005
Posts: 883
Hi Dan,

There are lots of variables here -- diameter of tubes, amount of kick, type of mount, typical load being carried, whether an adjustable "jackass" is being used, how hard the tubes are, even how heavy the driver is.

Actual data. I've used a long shaft on my 14' NRS E-140, a 16' NRS cat, a 16' Avon Pro, an older 16' Sotar, an 18' Avon Spirit, and an 20' Jack's El Tigre Grande.

In each of those cases a short shaft would not have worked without figuring out how to lower the transom quite a bit, which has the downside of making the controls harder to reach. But with smaller tubes a short shaft can work. Some people just let air out of the rear chambers to let the tube sag, and get the motor closer to the water.


Rich Phillips

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Old 07-01-2013   #3
La Grande, Oregon
Paddling Since: 1984
Join Date: Dec 2011
Posts: 77

I have a short shaft that was in the family. Used it many times for Snake River. If I ever get another, it will be a LONG SHAFT!
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Old 07-01-2013   #4
wildh2onriver's Avatar
irvine, California
Paddling Since: 1987
Join Date: Jul 2009
Posts: 1,197
Long shaft is what I've used. Short would have worked on the cats I've used them on. Tubes were 26 and 24" on those cats.
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Old 07-01-2013   #5
wildh2onriver's Avatar
irvine, California
Paddling Since: 1987
Join Date: Jul 2009
Posts: 1,197
Edit: would *not* have worked.
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