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HelicopterMain Discussion › 601 crashed/hard over in HH
06-02-2004 12:56 AM  13 years agoPost 1
A. Bundy

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Aurora,IL. 30W/SW of Chicago

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Anyone have this happen before.Normal fine,HH hard over and no gyro effect at all.Gyro and module didn't hit,but suffered sudden impact.Back to Futaba I guess.

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06-02-2004 08:37 AM  13 years agoPost 2
staraero1

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Atlantic City, New Jersey

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That is very unusual. The 601 and 502 are pretty solid and reliable units. To my knowledge they never suffer from the hard over like a 401.

Let us know what you find out happened to it. Was it ever crashed hard before this happened?

Staraero1

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06-02-2004 02:03 PM  13 years agoPost 3
A. Bundy

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Aurora,IL. 30W/SW of Chicago

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Yes ,folded blade auto.Gyro and sensor untouched but shocked hard.Now no HH.

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06-02-2004 04:14 PM  13 years agoPost 4
staraero1

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Atlantic City, New Jersey

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I'll bet it was damaged in the crash. Those 601 gyros, and the 502's have been pretty reliable. Some 401's for certain have trouble in them, but these other units to my knowledge never go ballistic while flying. Just this weekend we saw another 401 go hard over. And it was being run on 6 volts this time.

You need to send that 601 in. Again it was most likey damaged in some way from the previous crash.

Staraero1

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06-02-2004 05:52 PM  13 years agoPost 5
HeliWhacker

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Childersburg, AL.

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Just this weekend we saw another 401 go hard over. And it was being run on 6 volts this time.
The 401's wont handle 6v.

.

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06-02-2004 06:37 PM  13 years agoPost 6
A. Bundy

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Aurora,IL. 30W/SW of Chicago

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It's going today.

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06-02-2004 11:34 PM  13 years agoPost 7
G-DAVE

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Tyne and Wear , England

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Auto Glow ------- Gyro problem

My mate has had a problem of the 401 going hard over - changed gyro's and servos -- still the same so we retraced steps and the only change that had been made was the addition of a Auto Glow to the Throttle Jockey -- this was removed and the problem went away -- I can't explain it but that's the truth.
Dave D

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06-03-2004 12:20 PM  13 years agoPost 8
HeliWhacker

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Childersburg, AL.

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I'd guess when the auto glow came on during a high load, the voltage dropped below the 401's threshold.
My question is, why are people still buying that crap and why hasnt fuktaba fixed it ?

.

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06-03-2004 04:46 PM  13 years agoPost 9
Heli-Driver

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Arlington, TX

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I'd guess when the auto glow came on during a high load, the voltage dropped below the 401's threshold.
The Auto Glow uses it's own battery to ignite the glow plug. The power it consumes isn't much more than a gyro or governor so I seriously doubt that was the problem.

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06-03-2004 05:25 PM  13 years agoPost 10
Torito

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Laredo, TX

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My buddy last week crashed and I think it is a voltage drop and he thinks it was a hard. He was using a 401 gyro.

He was flying fine and has no crashes in that heli when all of a sudden the heli started piroetting and stopping but not to fast (1 piro per second.) It would piro and then stop, piro and stop, piro and stop until it hit the ground. Is that the famous hard over or a gyro reset due to low voltage?

--------So that's what this switch is for!!!

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HelicopterMain Discussion › 601 crashed/hard over in HH
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