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

can it be done???

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Old 01-27-2006, 11:55 PM
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OfFrOaDfReAk22
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Default can it be done???

Ok guys i was watching th emilitary channel and they were showing planes that were experimental and one of them was a plane the looked like it had the wing backwars it was like a v but facing forward. heres a link http://www.aerialpostcards.com/scree.../EC87-0182.jpg basically what i wanna kno is it possible to make a plane like this that would be able to be a extremespeed propplane. if so this would be one hell of a plane. also is ther maybe something like this already out there. if so do u have a link. thnks
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Old 01-28-2006, 12:00 AM
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Default RE: can it be done???

There are plans of this plane somwhere in net, glow engine, ducted fan.
Witold
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Old 01-28-2006, 01:56 AM
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SPEED JUNKIE
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X-29
Sweet experimental plane![sm=surprised.gif]
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Old 01-28-2006, 05:49 AM
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That was possibly the most unstable airplane that was ever designed, but with computers, it supposedly flew like a dream. It was my understanding that the forward sweep made for a lot less drag. I remember back when they were test flying the beast. Seems like it was really fast for the available thrust it had.

John
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Old 01-28-2006, 06:01 AM
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Hello,

the construction of the experimental GRUMMAN X-29 was oprimised for extreme maneuverability. For that its layout would be very well suited for a light foamy flyer for instance, powered by an electric driven pusher prop. Should be much fun.

After being familiar with the flight characteristics, CG adjustment etc of an X-29 foamy you might want to try a bigger version.

Try this link www.parkjets.com/X-29.html

Anyway - this German gentleman has an addiction to large scale extravagant scratch built turbine powered jets.
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Old 01-28-2006, 06:34 AM
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Default RE: can it be done???

I forgot this link to the Russian equivalent, the SU-47 Berkut


www.parkjets.com/su-47.html


These constructions will not be fast prop or ducted fan driven ships, but who cares...

Turbine power is needed here.
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Old 01-28-2006, 11:54 AM
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Was the SR71 built by Buzz Evans? I know he built 3 of them and all were sold to people with a lot of money. He said they flew beautifully.

John
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Old 01-29-2006, 12:40 AM
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so would it be possible to make it a propjet or pusher prop i would really like to get my hands on sumthing like this it would definetly win warbird day at my field. (we can bring anything we want as long as its armedforces related). anywa would it be possible to get this plane to fly as a prop jet or pusher prop jet. if i can get the money im determined to do this project
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Old 01-29-2006, 02:45 AM
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That is my next project after I am done with the T-38.
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Old 01-29-2006, 01:41 PM
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dang i was gunna make it my next project. i might try thi later on but for now theres some other planes id like to get my hands on before this one.
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Old 04-04-2006, 07:05 PM
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I´ve got a CAD plan of the X-29 for ducted fan. Anyone interested?
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Old 04-04-2006, 09:26 PM
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Default RE: can it be done???

Do a Google search on "Pond Racer". It was a hot FSW( forward swept wing) unlimited class pylon racer designeded and built by Burt Rutan! As far as I know an engine failure put the bird down taking the pilot with it. Here is a picture of a fellows model of the Pond Racer and a picture of my FSW Pond Racer/Blohm und Voss mix breed!

Later,
Tim
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Old 04-04-2006, 09:43 PM
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Default RE: can it be done???

Check out this link for a build thread on a pusher type X29. The guy has it ready to fly, but hasn't maidened in yet.

http://www.rcuniverse.com/forum/m_3833800/tm.htm
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Old 04-05-2006, 09:13 AM
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Default RE: can it be done???


Thinking of it, the X-29 was based on an F-5G/F-20 fuselage. Angel's derivative off of the T-38 is along those lines id imagine.

No doubt one could start off with a Juno F-20 fuselage layout, and work from there with the wings.

Of note, I use to work with and fly with several of the key players in the X-29 program. It was a fastenating program. Achieved a great deal in the way of technical advancement, and aquired a substantial database of flight data.

Also of note, the plane is technically not a warbird It was a NASA project. The airforce didnt want to fund it.

Bob
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Old 04-05-2006, 10:40 AM
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Default RE: can it be done???

If you build a forward swept wing and want it to fly fast and hard, make darn sure you build in a lot of torsional stiffness. With forward sweep, any wing twist creates strong forces in the direction that will increase the twist. Wings were known to disintegrate in early days of FSW research. Only the fabrication techniques of the last few decades have allowed thin wings to be built with sufficient torsional strength.

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Old 04-07-2006, 04:54 PM
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Default RE: can it be done???

On this post you can see a functional FSW Su-47 Berkut. (This is the name of the completed plane, the prototype was S-37)

http://www.rcuniverse.com/forum/m_80.../tm.htm#801917
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