Gyro Mounting

[flyhighdave(at)aol(dot)com]

I have noticed that a lot of panels look as though the gyros are not
shock mounted. They appear to be mounted directly on a fixed panel. Is
it advisable to shock mount them? I'm getting ready to start building
my panel and need some advice.
Thanks!
David

[jerry wass]

flyhighdave(at)aol(dot)com wrote:
> I have noticed that a lot of panels look as though the gyros are not
> shock mounted. They appear to be mounted directly on a fixed panel. Is
> it advisable to shock mount them? I'm getting ready to start building
> my panel and need some advice.
> Thanks!
> David
>
Gyros will last a lot longer if their itty bitty bearings are protected
from vibration,---one way is to make a separate panel with all the gyros
in it, and suspend this panel from the rest of the Inst. panel.
Make provision to add more vibration mounts---sometimes you can get a
resonant vibration at cruise RPM

[Morgans]

"jerry wass" > wrote

> Gyros will last a lot longer if their itty bitty bearings are protected
> from vibration,---one way is to make a separate panel with all the gyros
> in it, and suspend this panel from the rest of the Inst. panel.
> Make provision to add more vibration mounts---sometimes you can get a
> resonant vibration at cruise RPM

Your post's wording was a little unclear to me. Are you saying to mount the
gyros in their own shock mountings, then add even more vibration mounts, or
were you just re-stating that the initial addition of vibration mounts is a
good thing?
--
Jim (confused, as usual) in NC

[Blue]

If you are talking about a panel (dash) mount DG, or an electric AH, do not
shock mount them as they are designed to move with the frame (read dash).
If it is a remote gyro (for a compass), the housing should have adequate
shock mounting. A decent gyro should last 10,000Hrs

http://seaerospace.com/sperry/c14a.htm remote DG
http://seaerospace.com/rcallen/rca15ak.htm Panel DG

Regards

Blue




"jerry wass" > wrote in message
...
> flyhighdave(at)aol(dot)com wrote:
>> I have noticed that a lot of panels look as though the gyros are not
>> shock mounted. They appear to be mounted directly on a fixed panel. Is
>> it advisable to shock mount them? I'm getting ready to start building
>> my panel and need some advice.
>> Thanks!
>> David
>>
> Gyros will last a lot longer if their itty bitty bearings are protected
> from vibration,---one way is to make a separate panel with all the gyros
> in it, and suspend this panel from the rest of the Inst. panel.
> Make provision to add more vibration mounts---sometimes you can get a
> resonant vibration at cruise RPM

[jerry wass]

Morgans wrote:
> "jerry wass" > wrote
>
>
>>Gyros will last a lot longer if their itty bitty bearings are protected
>>from vibration,---one way is to make a separate panel with all the gyros
>>in it, and suspend this panel from the rest of the Inst. panel.
>>Make provision to add more vibration mounts---sometimes you can get a
>>resonant vibration at cruise RPM
>
>
> Your post's wording was a little unclear to me. Are you saying to mount the
> gyros in their own shock mountings, then add even more vibration mounts, or
> were you just re-stating that the initial addition of vibration mounts is a
> good thing?

OK--Fer instance--lets mount 2 instruments in a 4" X 8" pc of whatever
you like---then put four of the little Lord rubber-baby-buggy-bumpers ,
one in each corner of the panel---if it vibrates badly at cruise RPM,
then add one or two more--this will change the resonant frequency and
move it somewhere else in the RPM band--maybe even above Red-Line.