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

New Speed Plane

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Old 07-24-2003, 09:12 PM
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pdxpaul
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Default New Speed Plane

Hi all,

Got a few flights on my new yellow speeder today. Vitals:
Plane: Scratch built (modeled after a Fuma)
Engine: Sport Jett 50 w/ Q40 pipe
Prop: APC 8x9
Fuel: 15% Powermaster
RPM: 19k+
Speed: ~160 mph range

Paul
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Old 07-24-2003, 09:24 PM
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pdxpaul
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Default New Speed Plane

Another shot. Some more in my gallery. How do you post photos in the post?
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Old 07-24-2003, 10:18 PM
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ChuckAuger
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Default New Speed Plane

Those are showing up just fine, Paul.

I don't think you can attach but one pic per post like you are. If you have them hosted on a different server you can link to them with the IMG button up above.

Neat looking plane, BTW!!
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Old 07-24-2003, 11:26 PM
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Default New Speed Plane

Now here's someone who doesn't take chances... is that a carbon reinforcement I see shining though the covering?

How does it fly? Low speed handling... high speed handling?

How much wing area does it have?
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Old 07-25-2003, 02:31 AM
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pdxpaul
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Default New Speed Plane

Thanks, Chuck. Good eye, R-boy. Yes, that is carbon fiber, and its under the glassed center section (between the ailerons). Because I built the wing so thin (3/4" at root, 3/8" at tip), I sheeted, carboned, and glassed it. It is stout.

Specs: 46" span, 400 sq. in. I am guessing that it weighs in at around 3-1/4lbs, given the number of quickies I have held.

Low speed: It is a floater, with the light wing loading. Not much drag to slow it down either. It takes awhile to come down.

High speed: Flys like its on rails. Very quick and aerobatic. Lightning fast snaps at 120 mph or so. I have no fear with that wing. However, I did a couple of full pull turns and half loop reverse turns, and it liened out bad. How do I fix that? I wanted the pipe high because it was originally intended as a hand launch. But I fly off a paved runway, so the quickie gear and wheels were the way to go. Otherwise, I would have mounted the engine at 90 degrees.

Paul
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Old 07-25-2003, 03:38 AM
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daven
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Default New Speed Plane

Looks good to me!
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Old 07-27-2003, 07:53 AM
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Default New Speed Plane

Well I seen that thing fly today and all I can say is holly cow!!!even with the wore out sloppy jet it still was the fastest prop plane I have ever seen and could turn on a dime! Way cool Paul,the best thing was the landings, it just floats in.

Darin
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Old 07-27-2003, 11:24 AM
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Default New Speed Plane

pdxpaul

That's a great looking Wing!
What airfoil is it?
Did you hotwire the foam cores yourself?
Would you be willing to hotwire another set for fee?
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Old 07-27-2003, 03:15 PM
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pdxpaul
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Default New Speed Plane

Thanks, Darin. It is a fun one to fly.

Esten, it is a built up wing, but foam would be a good way to go. Here is a link to the original Fuma.

http://home.quixnet.net/~hobjogus/

I took Fuma designer Jeff's ribs and thinned them out considerably. I borrowed the wing shape from the Fuma, but it is otherwise all new. Given that Jeff was building Fumas to race with OS LA 15's, I decided to start from the gound up for Jett 50. Jeff relocated to Texas, and I not sure if he is still producing the kits. The plan has the ribs on it, and I may still have the plan somewhere in the garage. I could mail you a copy if I have it. Let me know.

Paul
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