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

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Old 02-23-2003, 11:23 PM
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mair
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I designed and built this plane about a year ago. I have about 70 flights on it. I've had it clocked at 120 mph on radar straight and level. Powerplant: YS 120fz, Weight: 15.1 lbs dry (it came out too heavy), Wing Span: 78 inches, Length: 72 inches. I'm currently working on a gas powered version which should scream. Pics are on the way.
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Old 02-24-2003, 05:44 PM
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Old 02-24-2003, 05:45 PM
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Old 02-24-2003, 05:57 PM
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The guy who clocked my plane wanted me to fly it five feet over the runway and straight at him.....15lbs between 115-120mph. This was the first day that I met him, pretty trusting on his part. I ended up flying it just off to the side of the runway.
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Old 02-24-2003, 06:00 PM
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Old 02-25-2003, 12:54 AM
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15 lbs... that is heavy indeed.
It looks a bit like those older f3a type planes (curare and family...).

Usually a trained eye can separate the beginners from the winners pretty fast... If he saw you fly that plane in a decent, confident way there would be no reason for him to not trust you.
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Old 02-25-2003, 12:12 PM
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Is it all fiberglassed ? It looks like a 10 pounder. Very
nice design.
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Old 02-26-2003, 02:06 AM
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It is a heavy airplane. Foam core fuse/wing/stabs then balsa sheeted, then glassed. So in other words, it's a tank. But it's fast and it fly's like it's on rails.
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Old 02-26-2003, 02:17 AM
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Old 02-26-2003, 05:30 AM
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sweet looking plane!

ever think about trying it with s 2 stroke on pipe?
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Old 02-26-2003, 07:05 PM
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Well, I've thought of puting a 2 stroke/pipe set up. But I like the high torque 4 stroke. It seems that I can spin a higher pitch prop with the 4 stroke. If I can get a 2 stroke set up (swinging a 13X8 prop at 14,000 rpm). That might get me going. But right now I'm swinging a 14X12 at 9600 rpm.
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Old 02-26-2003, 11:02 PM
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14X12 at 9600 rpm.

now thats 4 stroking power!

you have a point there about torque
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