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 toy for the 2015 season

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Old 11-07-2014, 04:52 AM
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Rudeboy
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Default New toy for the 2015 season

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Old 11-07-2014, 10:26 AM
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combatpigg
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Very nice.!
Keep us posted on how fast she goes.
How do you plan to equip it..?
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Old 11-07-2014, 11:09 AM
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Nelson Q40LS engine
Tettra 110cc bladder tank
JR DS 3421HV servos
FrSky Taranis radio

How fast? How fast do Q40 planes go these days? I have no idea. Should be good for 185-190 I guess.
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Old 11-07-2014, 12:06 PM
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At Vic's Speed Ralley a Q40 LS broke 200 by a good margin on a similar plane to your's. I think it was a Miss Ashley design pylon racer.
Are you going to use landing gear...?
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Old 11-07-2014, 12:17 PM
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Yes wing mounted alu landing gear and slim racing wheels.

It is going around the pylons, so landing gear is mandatory. I wouldn't want to hand launch a Q40 anyway...
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Old 11-10-2014, 06:32 PM
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You will be a fast man for sure! Nice score!
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Old 11-19-2014, 03:51 PM
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these do ten laps in around 1 minute. thats 2.5 miles or so around the pylons. 185-190 is a good range of speed for these. with the right prop I think well over 200 would be very easy to do. The FAI F-3D planes are around 230 MPH.
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Old 11-23-2014, 01:22 PM
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My flying buddy has a "stalker pro" radar gun...I'll have to convince him to stand on the runway: him aiming at my plane with the gun, and me aiming at him with the plane...
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Old 11-24-2014, 08:17 AM
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That's a good gun. We use one for the speed rally.
The guy who works the gun at the rally usually stands behind the pilot. His logic is "pilots are not inclined to hit themselves."

If his is like the one we use, you can also mount it on a camera tripod, just in case you are inclined to hit yourself.
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