[Raysun]

I had a very unusual situation...all 5 std servos in my 46 size sport plane failed at the same time this week. Could a radio surge do this...battery surge?

Futaba 1024 PCM radio, 9 ch rx. 4 cell nimh pack. I was trying to get a buddy box going, an older Futaba Conquest 4ch as the slave..no luck. Could this have done it?

Plane was flying last week...fine. Did get some snow on the servos, but dried quickly...can moisture kill servos? I lost a Blade CPP in the snow last winter...sat in snowbank for 3 weeks, recovered the carcass...all electronics OK.

Any ideas helpful. Wierd situation. Just trying to prevent a recurrence.

Thanks!

Ray

[skyad]

all 5 servos failed is the reciever still working ???because a reciever will cut out at 3.5 volts and in the cold a 4.8 will drop quickly.

skyad

[SJrcflyer]

I would have to agree that something isn't right.... do you have another rx and battery to check these servos with? Typically 5 servos don't just die, I've had some burn up on me but never just die. Isolate each possible problem. Also most modern servos can safely handle well over 7V they just don't last as long.

Chris

[Steven Dew]

I would agree.
It would be very unusual that all servos would
fail at the same time. I would be checking for a
single source of the problem. receiver, batteries,
crystals or even transmitter.

Let us know when you find the problem.
I am interested on your findings.

Thanks

[scaleguy]

Are yo sure TX is OK?

Could have bblown something in the Tx when you were trying the buddybox thing.

JAT!

[Raysun]

Thanks for ideas...radio is fine. I thought that was the problem, until I tried other servos with radio which work OK.

I have flown it with 2S 800 lipo in the past..result was servo glitching...dropped back to 4cell nimh pack, worked fine.

I'll keep looking for causes.

Ray

[Steven Dew]

I would be replacing one thing at a time.

Say change out one servo with one you know is good.
if it is no go then, replace receiver, if no go, change
switch, etc. I would only change one thing at a time at
test. Keep going until you find the problem.