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

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Old 09-16-2002, 10:18 PM
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jlong34016
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Nelson arrived today. QM-40 running 7.4x8 carbon fiber prop apc.
9206 futaba's (132 oz torque @4.8 volts) elevons. bob violet inflight mixture control. expecting 23,000 on the ground and lots more in the air. Engine has throttle. Any suggestions or advice?
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Old 09-17-2002, 12:07 PM
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Default whiplash

Yep! Wear a diaper and put a pillow between your knees to avoid breakage. You are going to have one heck of a flight.

Seriously, just make sure your prop and spinner is balanced properly and start off with the engine a little rich. Have a helper launch the plane so you can have both hands on the sticks. That's it! If you get nervous...throttle back.

Mark M.
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Old 09-18-2002, 01:25 AM
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BAGOSTIX
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Default wow!!

When you said you were going to put a whiplash together you weren't foolin around were you?

You can expect lots of fun with this baby.

I strongly suggest balancing everything and use lots of thread lock, that kind of Rs will have a tremendous resonance and may loosen lots of screws on the servos and such.

I speak from experience, I had a Jett 50 on one of my whiplashes and the resonance literally backed off an elastic stop nut..

On launch, you may want to give it 1/2-3/4 throttle and build into it once you trim in..

this will come right out of your hands on launch and it wont stop till you throttle back...

good choice in servos, sounds like you have it all together..

Be sure and check all of your controls after each flight.

happy flying, by the way, we will soon be selling pillows on the website for people to use between their knees..
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Old 09-18-2002, 01:30 AM
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Lee Cox
 
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Default whiplash

I would suggest that a diaper could be conseeded as being a wimp by fellow fliers....all will have flown a much faster ship at some stage, whilst standing on one leg and drinking coffee.
Can i suggest 12 hours before the flight time 2-3 sachets of Immodium should block up most passages that might cause embaressment. Of course a porta potty could be a secondary measure!!

Have fun ....got any pics???
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Old 09-19-2002, 07:08 PM
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jlong34016
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Here is previous pic. Will get one with gear installed this weekend.
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Old 09-20-2002, 09:34 PM
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Default whipped!!

You should be able to see that one, believe me with a nelson on your whiplash, you'll need all the help you can get... it will probably be a blur... dont forget to put aileron hinge reinforcing tape on the underside of the hingeline... and use that thread lock liberally
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Old 10-02-2002, 03:18 PM
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rick just ordered my batman version and see you note about using reinforcing tape on the hinge line. is this just for the older ones and not on the x version i am getting??
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