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

Shark XV .15 speed plane?

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Old 07-03-2009, 09:34 AM
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smoknrv4
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Default Shark XV .15 speed plane?

Saw this on E-bay, Looks Like it might work good with a O.s. .25 VRDF or something like that.
What do you think?
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Old 07-03-2009, 09:43 AM
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Default RE: Shark XV .15 speed plane?

I Just found a build thread for this in the 1/2A-1/8A Forum.
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Old 07-03-2009, 12:27 PM
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Default RE: Shark XV .15 speed plane?

I think you would need to hack into the plane and move the firewall back. If you know what to look for in terms of minimum strength, stiffness, etc. of the entire airframe, then have fun.
Are you experienced with the OS VRDF? Have you flown it in other planes?
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Old 07-03-2009, 12:55 PM
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Default RE: Shark XV .15 speed plane?

No, I've never used it in a plane, but I'll try anything, apparently a 7x6 apc would be a good prop, also I am familiar with beefing up aircraft for more powerful engines, done that many of times.
Acually my shrike .10 is going to use the VRDF first anyways, added a carbon fiber 3/8 tube spar, and a little fiberglassing.
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Old 07-03-2009, 05:08 PM
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Default RE: Shark XV .15 speed plane?

Well then it sounds like you are good to go! I'm sure RD built it to be just strong enough for a sport .15, so you've got your work cut out for you.
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Old 07-03-2009, 05:54 PM
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Default RE: Shark XV .15 speed plane?

Maybe I'll put my O.S. 15FP I have sitin' around not doing anything, just have some fun with it first, see how it flys.
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Old 07-03-2009, 07:13 PM
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Default RE: Shark XV .15 speed plane?

I'll bet it goes pretty good with a 7x4 or 7x5.
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Old 07-04-2009, 10:23 AM
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Default RE: Shark XV .15 speed plane?

Hummm... The wing looks like it could use more structure. I'd worry that if you ever got the thing up to speed it might flutter. A D-box leading edge and more wood on the TE might be needed. I don't see any vertical grain sheeting between the spars either. If the rest of the plane is that light, you might be in for some work before you get it up to speed. It really hard to tell from the picture though.

Bill
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