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jfosse1(at)shawneelink.ne
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 Posted: Sun Aug 24, 2008 6:35 am Post subject: 701 Engine Selection |
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I've been following the discussion about the Jab 3300 and the 912S and would
like to offer the following as another possibility for an engine. I have
ordered a Rotamax rotary engine to replace my Suzuki 1.6L. No experience
with the engine and operating on blind faith and the spirit of experimental
aviation. Look at the engine at www.rotamax.net and I think you will be
impressed with its potential.
Jim Fosse
N329F
rota
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gburdett
Joined: 05 Aug 2008
Posts: 13
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| Posted: Sun Aug 24, 2008 9:02 am Post subject: Re: 701 Engine Selection |
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Good on you , Jim. As you said, that's why their called experimental. I saw the demo at Osh, really large rotors and they are flying in a couple of aircraft they said. If you live anywhere near Ohio, they might cut a deal to to use your craft as a test bed. Good Luck.
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kmccune
Joined: 22 Sep 2007
Posts: 577
Location: Wisconsin, USA
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| Posted: Mon Aug 25, 2008 3:43 pm Post subject: Re: 701 Engine Selection |
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I'll second that!
May I ask why your replacing the G16 though?
Kevin
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_________________
“Always do what you are afraid to do.”
R.W. Emerson (1803-1882)
"Real freedom is the sustained act of being an individual." WW - 2009
"Life is a good deal...it's worth it" Feb 1969
Dorothy McCune |
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jfosse1(at)shawneelink.ne
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| Posted: Wed Aug 27, 2008 8:01 pm Post subject: 701 Engine Selection |
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Kevin asked why I am replacing the Suzuki 1.6L engine.
1. Weight. I had to add 30 lbs of ballast all the way back to bring in the
CG. That totals to about 60 pounds of lost payload. The Rotamax weighs in
at 145 lb.
2. I bought the Suzuki from a business in Poland. They are no longer in
business. I have been concerned about the reliability of the geared
reduction unit, in that it carries a bare minimum of oil for the job. No
indication of impending failure, though.
3. Laying the engine on its side for mounting on an airplane requires the
oil pan to be modified. I have been aggravated by oil leaks where the oil
pan joins the block. Also, oil temps run high. If I keep the engine I will
have to install an oil cooler--more weight up front.
4. Limited area for radiator placement results in a very aerodynamically
dirty nose cowl.
The Suzuki is basically a good engine and the right person could take it and
work out the kinks in time. I'm just not that person and I may not have
that much time. Of course, I could wind up with more problems than I have
had. That's life. Besides, they were knocking $1000.00 off the price by
ordering at Oskosh.
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kmccune
Joined: 22 Sep 2007
Posts: 577
Location: Wisconsin, USA
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| Posted: Thu Aug 28, 2008 2:24 am Post subject: Re: 701 Engine Selection |
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Thanks for the info, the G16 is a little bit heavy for the 701. And the out of business gear box company is a little scary too!
I liked the Rotomax engine though, keep us posted on the progress and results.
Kevin
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_________________
“Always do what you are afraid to do.”
R.W. Emerson (1803-1882)
"Real freedom is the sustained act of being an individual." WW - 2009
"Life is a good deal...it's worth it" Feb 1969
Dorothy McCune |
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