Yamaha has the following props for their 9.9 Hi Thrust outboards:
11.75 X 12.25
11.75 X 11
11.75 X 9.25
They also have these for the 8 HP and I assume they will fit the 9.9:
11.75 X 7
11.75 X 5.75
So a wide range of pitches is available from 5.75" to 12.25"
I have not seen any aftermarket props such as Michigan Wheel or Solas available for these motors. If anyone knows of other props, please let me know.
Cheers!
--- In electricboats@yahoogroups.com, danbollinger <no_reply@...> wrote:
>
> They sound like a good fit. What's the pitch on the props for the 9.9Hp unit?
>
> --- In electricboats@yahoogroups.com, "bb386scn" <bb386@> wrote:
> >
> > Has anyone converted one of the Yamaha T series High Thrust / Dual Thrust outboards to electric? They come in sizes from 8 to 60 HP. They have been made since 1985 so used and relatively inexpensive ones are available.
> >
> > What drew me to this motor was the low gear ratio. The 9.9HP uses 13 and 38 tooth gears which gives a ratio of 2.92:1. It uses an 11-3/4" diameter prop which sounds like it would work well on a boat that is carrying a few hundred pounds of extra weight in the form of batteries.
> >
> > If anyone has converted one of these motors to electric, I would be very interested in hearing about the conversion and how the motor performed for you.
> >
> > Thanks!
> >
>
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