Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Gas speedseter?

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Old 03-12-2008, 02:47 PM
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soarrich
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Default Gas speedseter?


OK, I have a pile of MT62s, it's a lite weight clone of the G62, which is the official motor for AT-6 racing so it must be good. I can't seem to find a website that covers this type racing to fine hop-up parts. I've read the G62 can turn 10000 rpm no problem, so I want to build a speed plane, not a racing plane, with one of my motors. I think with one of these 200 mph is possible.

17600' a minute at 10000 rpm means you need a 23" pitch prop do they exist?
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Old 03-12-2008, 02:58 PM
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bob27s
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Default RE: Gas speedseter?

In my experiences..... this is where to go to get the "right" prop

http://www.supercoolprops.com/price_list2a.php#usra

One of the F-1 props might work depending on the application. But once you know the aircraft parameters, it will be easier to size a prop.
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Old 03-12-2008, 03:25 PM
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You gotta like a guy that says, "We may be expensive but we're slow ! "

My plane is going to be about 70" wing span maybe 700 sq/in go fast in a straight line, turning is not important. The design is fluid still, the only thing I am fixed on is a tractor prop, retracts, probably homemade, retracting into the body like a Cessna 177RG, but conventional gear. Picture a 177 without a greenhouse and that's close.
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Old 03-12-2008, 05:58 PM
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Default RE: Gas speedseter?

Rich:

Sorry, turning is always important even for the ultimate dogs. If it does not turn well, gotta be a dog by any other name. ENJOY
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Old 03-12-2008, 06:54 PM
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ORIGINAL: rmenke

Rich:

Sorry, turning is always important even for the ultimate dogs. If it does not turn well, gotta be a dog by any other name. ENJOY
I don't want to race it, just a straight dive, level run, then a pull up. It only has to turn well enough to take off and land safely.
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