"rich" <cwo4cno7325@[EMAIL PROTECTED]
> wrote in message
news:322d35ed-a759-4766-bc37-199b863361a5@[EMAIL PROTECTED]
Jun 12, 10:52 pm, "Ed Cregger" <ecreg...@[EMAIL PROTECTED]
> wrote:
> Depends, which OS .61 do you have? Two-stroke? Four-Stroke. Recent
> manufacture? Old? Which model?
>
> Ed Cregger
>
> "rich" <cwo4cno7...@[EMAIL PROTECTED]
> wrote in message
>
>
news:767d66d8-7876-4981-bbab-0c9e1e76bb01@[EMAIL PROTECTED]
>
>
>
> > Hi All,
>
> > Still working on a Senior Telemaster, and am planning on using an
> > OS-61 for power. After getting the wing mounted on the fuze, I'm
> > wondering if a .61 is big enough? Anyway, my question is how big a
> > prop can I use. Prior plane was a 60 size trainer, and I used a 12x6
> > prop, and it seemed to work ok. Do you think I can use a 13x5 on this
> > plane/engine combo??? 12 x 6 = 72, and 13 x 5 = 65 so power seems
> > about the same. I'm looking for take-off performance, not top speed.
> > Maybe even a 14x5 if I found one????? Can you go too far with this?
>
> > Thanks for any input.- Hide quoted text -
>
> - Show quoted text -
Ed,
It's an OS .61 2 stroke, I got new about 3-4 years ago. Don't
remember the model. The LHS did a pretty good turnover of stock, so I
suspect it was a current model. It would drag my 60 size trainer
vertical with an 11x6 prop, so it seemed to be a pretty strong motor.
And I do have 3000 x 75 feet to get it into the air if needed.
Rich.....
-------------
Well, that sounds like an engine that will have plenty of power for your
Senior Telemaster.
A good friend of mine gave me a flight or two on his Senior Telemaster
that
was built from a kit. His was powered by an HB .61. I forget if it was the
PDP model at the moment. Anyway, he had a bunch of power with that engine.
I'm sure that your recent OS .61 is more powerful than that good running
HB
..61 of Art ****ndel.
It was off the ground in just a few feet with a light head wind. The rest
of
the time I flew at half throttle or less and was still able to perform
loops, Immelmanns and stall turns with no problem whatsoever.
Ed Cregger
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