You might want to watch the guy who is doing your installations.
I've seen experienced technicians, who had no idea how easy it is to damage
gyro bearings, do stupid things like set a new attitude indicator down on a
bench without padding.
When the gyro is not spinning, dropping one the width of a pencil onto a
hard surface will damage the bearings.




"McGregor" wrote in message
ink.net...
Bought an new *electric* RC Allen in 2001 as a backup after the primary AI
died in IMC. Overhauled it in Mar of 2003. Warranty overhaul in Aug '03.
Again in Oct. Now working but sounds like its going to come apart any
second - very noisy gyro.

Working with local FSDO to figure out if there is any legal way to put one
of these in as a standby -
http://www.aviationconsumer.com/pub/...rt/5283-1.html
(fits in a 3 1/8" hole....)

RC Allen is junk.


"Paul" wrote in message
...
Sometime back I got tired of fighting Aircraft Quality Instruments
trying
to
get a Gyro Horizon that worked, so I purchased a new RC Allen Horizon.
This
was April of 2002.

Guess what--- the horizon failed in flight last week. The warrantee was
one
year. Upon removal, I found a part rattling around inside the
instrument.
I
returned it to the factory with a note, that even though the warrantee
had
expired, I would expect the instrument to last longer than 18 months. I
further explained that the horizon could be considered as a crucial
instrument that should be relied upon, and parts falling off inside is
unacceptable.

We'll see how they treat me. I'll report back what the factory says.

Maybe the gyro gods just don't want me to have a working horizon. G

Cheers:

Paul