Mach Racer Flat Spin.... Oh Boy!
05-17-2009, 02:55 PM
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Mach Racer Flat Spin.... Oh Boy!
I suspect this has happened to others with the Mach Racer. I was doing a vertical climb with rolls and apparently fed in a bit too much up elevon, causing the Mach Racer to snap into an inverted flat spin. With no rudder, I could not recover. Fortuntately, it floated in, landing upside down in tall grass. Broke both rudders and nothing else. I believe I am going to take the fixed rudders off and make two functioning ones. Anyone else have experience with this?
05-18-2009, 12:03 AM
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RE: Mach Racer Flat Spin.... Oh Boy!
Happened once already to my 2 week old with my Diamond dust.Ithought I was screwed but a very last second full power and full down elevons pointed the nose down and I was able to pull out. About 20feet to spare. I was sweating!!
05-18-2009, 06:42 PM
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RE: Mach Racer Flat Spin.... Oh Boy!
I had that happen with a Whiplash at about 400' so I thought I had plenty of time. Tried every corner, up, down, idle, part throttle and full, no joy.
I elected to kill the engine before splat down. No harm done.
I elected to kill the engine before splat down. No harm done.
05-19-2009, 10:07 AM
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RE: Mach Racer Flat Spin.... Oh Boy!
I've stalled mine at over 100 mph with the elevator, but never had it flat spin on me. Maybe because I never backed off the throttle?
05-19-2009, 12:23 PM
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RE: Mach Racer Flat Spin.... Oh Boy!
The CG and flap throw comes into play. Speed seems to matter, too. I built a delta from RCM plans [Lil Toad] that would spin like a top with a .10, but would not do it with a .15. I think the CG was the difference.
05-20-2009, 09:01 PM
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RE: Mach Racer Flat Spin.... Oh Boy!
ORIGINAL: combatpigg
A Whiplash in a flatspin is like a 6 pound flywheel, it should gain altitude.........
A Whiplash in a flatspin is like a 6 pound flywheel, it should gain altitude.........
I would have paid to see that. You probably came close to splitting an atom?
