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Avionics Stack width

 
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BobsV35B(at)aol.com
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PostPosted: Wed Aug 08, 2007 12:31 pm    Post subject: Avionics Stack width Reply with quote
Good Afternoon Larry,
Ever since the "Glover Box" radios appeared in the late forties, the standard width was considered to be six and one quarter inches for us light plane types. Unfortunately, it seems that some have fattened up a bit so that it now seems better to plan on six and five sixteenths of an inch. If your box is skinny, you can always add washer or two, but if they are on the fat side, it is hard to fix.

In any case, it is best to measure the actual units. Some of them will give a dimension to within one one thousandth of an inch, but when you measure them, as you have noted, there can be a fifty thousandth error. Once again, measure the actual box if at all possible!

Happy Skies,

Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503


In a message dated 8/8/2007 2:55:06 P.M. Central Daylight Time, larry(at)ncproto.com writes:
Quote:

I’ve measured a few items now and have found some discrepancy in dimensions. What is the supposed standard panel opening for avionics ?? In the case of a slide in unit utilizing a tray, this would be the outside width of the tray. Second, what is the supposed standard slide-in width ?? In the same case, this would be the inside opening width of the tray; of the outside width of the avionics unit.
Thanks !!!
Larry E. James
Bellevue, WA
Super Decathlon
Rocket (fuselage / systems)





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frank.hinde(at)hp.com
Guest
PostPosted: Wed Aug 08, 2007 12:48 pm    Post subject: Avionics Stack width Reply with quote
Old Bob is right...I measured my stack ( A PS engineering Audio panel
and the rest Garmin) and cut a 6.25" hole in the panel.

Frank RV 7a

________________________________

From: owner-aeroelectric-list-server(at)matronics.com
[mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of
BobsV35B(at)aol.com
Sent: Wednesday, August 08, 2007 1:30 PM
To: aeroelectric-list(at)matronics.com
Subject: Re: Avionics Stack width
Good Afternoon Larry,

Ever since the "Glover Box" radios appeared in the late forties, the
standard width was considered to be six and one quarter inches for us
light plane types. Unfortunately, it seems that some have fattened up a
bit so that it now seems better to plan on six and five sixteenths of an
inch. If your box is skinny, you can always add washer or two, but if
they are on the fat side, it is hard to fix.

In any case, it is best to measure the actual units. Some of them will
give a dimension to within one one thousandth of an inch, but when you
measure them, as you have noted, there can be a fifty thousandth error.
Once again, measure the actual box if at all possible!

Happy Skies,

Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503

In a message dated 8/8/2007 2:55:06 P.M. Central Daylight Time,
larry(at)ncproto.com writes:



I've measured a few items now and have found some discrepancy in
dimensions. What is the supposed standard panel opening for avionics ??
In the case of a slide in unit utilizing a tray, this would be the
outside width of the tray. Second, what is the supposed standard
slide-in width ?? In the same case, this would be the inside opening
width of the tray; of the outside width of the avionics unit.

Thanks !!!

Larry E. James

Bellevue, WA

Super Decathlon

Rocket (fuselage / systems)




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