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Too bad his highness didn't tell you what the perfect apex seal is made of, the correct RPM to run or the 'best' propeller. Chris, you missed the oprotunity of a lifetime to perfect the rotary aircraft engine! The SHAME!
You an I know full well that taking on this kind of project will result in being 'helped' by this kind of person.
At my EAA chapter, I get none of that. Those guys understand what's going on. Even tho many feel the sun rises and sets on Lycoming, they are well aware that alterative engines are viable, and part of experimental aviation. They sure do like some of the new ignition systems, FADEC etc. The chapter meeting have frequent presentations on new gadgets for the engine and airframe. Acceptance of new 'experimental only' components is commonplace. I think we got to them. Maxwell propulsion brought their Subaru conversion, in Glasstar Sportsman to our meeting, and the gang gave it a real going over. Yep. The people you care to hear from accept what you do.
Scott
-----Original Message-----
From: Chris Barber <cbarber@bellairepolice.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sun, Sep 6, 2009 3:52 pm
Subject: [FlyRotary] Re: Over reving your rotary
EXACTLY!!!!
What was I thinking revving it up to 6000 rpm's to see if I can break it WHILE ON THE GROUND! Guess I should wait 'till I am in the air, that way I can really test it and perhaps get my glider rating...Ed may become annoyed if I challenge him for the trophy <yikes> (Actually, I am a bettin' Ed does not want anyone else to have to learn to glide.)
Oh, btw, it did NOT break it THIS time.....
All the best,
Chris
Cpl. Christopher Barber, JD
Badge 330
Bellaire Police Department
5110 Jessamine
Bellaire, Texas 77401
713-668-0487
713-662-8289 fax
From: Rotary motors in aircraft on behalf of Lynn Hanover
Sent: Sun 9/6/2009 5:43 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Over reving your rotary
"Well, you know the problem with the rotary is......hot exhaust.....and you know about the apex seals, don't cha". Do you really want to rev the engine up that much, your crank shaft may not be able to take it with a load Also, that is not the best prop". "Your engine should not be surging that way"
I do enjoy being told about rotaries.
He was right about the excessive RPM. Real racers turn up sprint racing side port engines barely over 10,000 RPM. My bridgeported engines shift at 9,600 RPM. Periphery port short race engines shift at 10,700 and long race peripherys a more modest 10,300 RPM. The crazy drag racers do 12,000 RPM.
So you shoudn't rev yours very high.either. You might get it hot or hurt those pesky apex seals.
Lynn E. Hanover
Rotary engines since 1980.
Note the header color during the power runs.
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