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 model

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Old 03-31-2003, 10:37 PM
  #1  
cabanestrut2002
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Default new speed model

I own a lot of aerobatic models and wanted something fast for a change, well heres my attempt.
28" wingspan and a piped OS .45 fsr.
its not finished in this picture, ive got to paint it yet and get the gear installed.
its covered in tissue+dope and the wing is foam veneer.
i am a bit concerned about the torque on launch causing problems and am considering making a take off dolly for it, what do you guys think, it has good wing area.
what sort of prop would be a good place to start with.
if this baby flies i am sure it will really shift.
thanks, dan
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Old 04-01-2003, 12:35 AM
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Crazy4Flight
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Default new speed model

add rudder control,
it is a requirement for pylon racers
do not induce P-factor with high angle of attack hand launch
I would launch 5 degress up over level and with 65-75% power.

wonders shrikes and whiplash, i have done ok fine w/o rudder but considering your power to wingspan add miniservo and rudder
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Old 04-01-2003, 12:38 AM
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Blue Skyy
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Default new speed model

Nice plane and design. What's the weight of this model? I wouldn't think you'd need a dolly for a plane this over powered. I think I'd have trouble seeing it with only a 28" WS. Heck the pipe nearly bigger than the plane!

Very Cool!

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Old 04-01-2003, 03:34 AM
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Razor-RCU
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Default Nice!

You are a brave man...

Let me know if you need more power, I have a MVVS GRRT 40 piped I am gonna have to sell!
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Old 04-01-2003, 05:15 AM
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rsieminski
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Default new speed model

Razor,
Is that a good engine? What RPM with what prop are you getting?
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Old 04-01-2003, 08:54 AM
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cabanestrut2002
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Default new speed model

crazy4flight- this isnt really a pylon racer, jut a bit of fun whih i hope will be fast but if it will help on launch i will consider it.
the fsr is a really good engine and it really screams, very reliable too.
i havent weighed it yet but the only heavy part is the engine, the airframe is very light.
any ideas for props for this model??
i was thinking of starting with a 8x8 apc
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Old 04-01-2003, 09:15 AM
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Default new speed model

Let me know when you test it, i'll bring my cam to video the bits expolding
Crazy: i'm a bit lost on the rudder idea....
When i built my quickie it wasn't much bigger than this with a MDS 38 and heli pipe, the torque was bad, get John or Barry to throw it and make sure the engine wont sag when thrown that hard, they are the only people that can lauch the plane higher than the stall speed you'll have
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Old 04-01-2003, 05:32 PM
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cabanestrut2002
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Default new speed model

thanks for the optimism phil! do you want the test flight?
its being painted at the moment-magnum yellow.
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Old 03-12-2011, 06:56 PM
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Default RE: new speed model

anyone have or know good sourse for pipes for mvvs grrt 40 ? also rc carb for this motor steve
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Old 03-12-2011, 07:31 PM
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Default RE: new speed model

It has been 8 years since this plane was ready...why haven't we heard a flight report or any kind of follow up report yet...?
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Old 03-14-2011, 07:46 AM
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daven
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Default RE: new speed model

I was thinking the same thing Piggy.
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Old 03-14-2011, 10:07 AM
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Default RE: new speed model

I think he might have tried to test fly it on March 10 judging by the mayhem in Japan.

Even I turn a project around faster than this.
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Old 03-14-2011, 10:20 AM
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Default RE: new speed model

I heard that the power to drag ratio was so high that his flux capacitor exploded and the plane disappeared into a rip in time. According to my calculations, we should hear a flight report on December 21, 2012.
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Old 03-14-2011, 10:21 AM
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Default RE: new speed model

Speaking of flight reports, CP- when are we going to get some more news on that speed plane you've put together?
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Old 03-14-2011, 11:20 AM
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Default RE: new speed model

I've got the props from Eliminator now.
P2, P5, P6 and P9 models..translated..> 7.2x7....7.2x7.4...6.75x7.75....6.75x8
There are 3 sizes that I've never tried on that engine. They'll have to be run individually and whittled down to the point where the engine will run them.
Outside of that, things need to dry up around here...the field is a swampy mess.
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Old 03-14-2011, 07:38 PM
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Default RE: new speed model

Cabanestrut2002 was abducted by aliens in 2004:
"Last Post: 06/13/2004 04:00:50: PM"
http://www.rcuniverse.com/community/...=1&memid=41149
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Old 03-15-2011, 07:05 AM
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daven
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Default RE: new speed model

After he torqued that overweight Whale into the ground on launch, he quit!

He did log in to rcu in 2006.
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Old 03-15-2011, 07:23 AM
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combatpigg
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Default RE: new speed model

Next time he should design in wingtip panels that eject after the plane is airborne.
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Old 03-15-2011, 08:32 AM
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daven
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Default RE: new speed model

either that, or his aileron hinges (masking tape) were not up to the task!
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Old 03-15-2011, 06:49 PM
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Default RE: new speed model

Speaking of the Whale...Dave. Did yours ever fly?
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Old 03-16-2011, 03:54 AM
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daven
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Default RE: new speed model

That whale flew a lot actually. AJ took 2nd with it at a race and it was competitive.

Unfortunately it needed so many mixes to fly right it was hurting in the turns. At the end of the day, it flew as well as anything I have ever built, but needed multiple mixes to take out its bad habits.
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