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Do instruments need shock mounting?

 
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dwilde(at)clearwire.net
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PostPosted: Wed Dec 06, 2006 4:29 pm    Post subject: Do instruments need shock mounting? Reply with quote
I quickly looked in the archive and did not see any recent discussion on
how to mount the instrument panel. I plan on installing just the basic
steam gages on my 701 and will be installing either a Rotax 80 or 100 HP
engine. Do these instruments need to be shock isolated? Those of you
who are actually flying, what has been your experience.

Dan

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pmaxpmax(at)HOTMAIL.COM
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PostPosted: Wed Dec 06, 2006 6:38 pm    Post subject: Do instruments need shock mounting? Reply with quote
I am using a Corvair with a simple steam gauge panel. I used the panel as supplied in the kit, cut the holes with a fly cutter, and mounted it according to plans. Nothing shock mounted. No problems in 120 hours.

Phil Maxson
601XL/Corvair
Northwest New Jersey
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NYTerminat(at)aol.com
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PostPosted: Wed Dec 06, 2006 7:58 pm    Post subject: Do instruments need shock mounting? Reply with quote
Dan,

I installed vibration mounts on my whole panel.

Bob Spudis
N701ZX CH701/912S





In a message dated 12/6/2006 7:30:32 P.M. Eastern Standard Time, dwilde(at)clearwire.net writes:
Quote:
--> Zenith-List message posted by: Dan <dwilde(at)clearwire.net>

I quickly looked in the archive and did not see any recent discussion on
how to mount the instrument panel. I plan on installing just the basic
steam gages on my 701 and will be installing either a Rotax 80 or 100 HP
engine. Do these instruments need to be shock isolated? Those of you
who are actually flying, what has been your sp; (And Get Some AWESOME FREE find fts ic you for nbsp; -Matt Dralle, List he es Day --> ===




[quote][b]

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4rcsimmons(at)comcast.net
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PostPosted: Thu Dec 07, 2006 8:54 pm    Post subject: Do instruments need shock mounting? Reply with quote
Dear List,
The shock mounting for the gauges is new to me but makes sense.

Can some one send me a pictorial example of how this is acomplised!

Are certified aircraft done this way?

I think this is a gooe question so do not ???????

Happy days there mates!


[quote][b]

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pacificpainting(at)comcas
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PostPosted: Thu Dec 07, 2006 9:34 pm    Post subject: Do instruments need shock mounting? Reply with quote
I've always heard that you should shock mount your gyros and the rest didn't matter. It seems to make sense, but there are a lot of panels that mount everything solid and don't seem to have any problems.


[quote] ---

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ggower_99(at)yahoo.com
Guest
PostPosted: Thu Dec 07, 2006 10:00 pm    Post subject: Do instruments need shock mounting? Reply with quote
Hello Dan,

I dont think they need any, The 912 instalation (mine is 100 hp) is very quiet and could say vibration free in flight,,, Not counting the 2 seconds before the prop stops at shut down Smile

Saludos
Gary Gower
701 912S
Flying from Chapala, Mexico.

Dan <dwilde(at)clearwire.net> wrote:[quote] --> Zenith-List message posted by: Dan

I quickly looked in the archive and did not see any recent discussion on
how to mount the instrument panel. I plan on installing just the basic
steam gages on my 701 and will be installing either a Rotax 80 or 100 HP
engine. Do these instruments need to be shock isolated? Those of you
who are actually flying, what has been your Any questions? Get answers on any topic at Yahoo! Answers. Try it now. [quote][b]

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NYTerminat(at)aol.com
Guest
PostPosted: Fri Dec 08, 2006 5:40 am    Post subject: Do instruments need shock mounting? Reply with quote
In a message dated 12/7/2006 11:56:14 P.M. Eastern Standard Time, 4rcsimmons(at)comcast.net writes:
Quote:

Dear List,
The shock mounting for the gauges is new to me but makes sense.

Can some one send me a pictorial example of how this is acomplised!

Are certified aircraft done this way?

I think this is a gooe question so do not ???????

Happy days there mates!
Aircraft Spruce has different types of mounts, I used the 1" square Lord type. Used the Zenith supplied panel for the backer panel to mount the shock mounts, and used a two piece panel over it, one for the gauges and one for my avionics. Cut out the Zenith panel to allow the front panel and instruments to slide into.


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[url=http://aircraftspruce.com/eaachapters.php]EAA Chapter List
[/url][url=http://www.aopa.org/] Instruments - Instrument Accessories - Shock Mounts SHOCK MOUNT - ONE INCH PLATE TYPE LORD MOUNT
1" Square Plate Type Lord Mounts, 6 lb. rating. Monel mounting plate. Base holes .141" dia. for 6-32 screws. Center hole .166" dia. for 8-32 screw. New surplus item - like new mfg.

View more details 100PL-6 INSTRUMENT SHOCK MOUNT 100PL-6 $4.50 SHOCK MOUNT - ROUND MOUNT
As used in Cessna aircraft. Overall length 1-1/4". Rubber molded on 8-32 threaded projections. New manufacture.

View more details 10-14700 RND INSTR SHOCK MOUNT CESSNA $6.35 SHOCK MOUNT - TWO INCH PLATE TYPE LORD MOUNT
2" Square Plate Type Lord Mounts, 35 lb. rating. Steel mounting plate. Base holes .196" dia. for 10-32 screw. Center hole .391" dia. for AN6 bolt. New surplus item. 200P-35

View more details 10-00034 200P-35 INSTRUMENT SHOCK MOUNT $17.20 Typical Cut-out ­ Most Small Instruments
Permit mounting of instruments from the front of the panel. Non-magnetic speed nuts easily compressed with finger pressure to allow insertion of legs into clearance holes. When fully inserted a...

View more details A8944-632-493 INST MOUNTING NUT MS33737-16C $0.78 INSTRUMENT CLAMP MOUNTS - SHORT BALL CLAMP
Use these clamps and holders to add essential instruments to your aircraft. Very versatile and durable gadgets. Short Ball Clamp.

View more details CL001 SHORT BALL INSTR CLAMP MOUNT $36.50 Lord J-14290-4 Instrument Shock Mount
5 lb rating Metal mounting plate .144 dia. base hole (screw size: #6) .195 dia. center hole (screw size #10) Aircraft: Cessna 182, 182A-182N

View more details 08-00381 LORD MOUNT J-14290-4 $23.75 INSTRUMENT CLAMP MOUNTS - LONG BALL CAMP
Use these clamps and holders to add essential instruments to your aircraft. Very versatile and durable gadgets.



View more details 10-01433 LONG BALL INSTRU CLAMP MOUNT $38.70 “EZ NUTS” INSTRUMENT MOUNTING SYSTEM by SPT
Take the frustration out of mounting aircraft instruments with the use of Superior Panel Technology’s new EZ Nuts. The EZ Nut bezel goes around the instrument body and is held in place with adhesive tape.

View more details 11-01830 EZ NUTS 3-1/8 $9.95 11-01831 EZ NUT 2-1/4 $9.95 MOUNTING PLATE FOR THE 3 ATI INSTRUMENT
Quick fix for a hard to cut out opening. Plate is .500 wider than instrument. For easy mounting, material is .080 aluminum.

View more details 10-00154 3ATI MOUNTING PLATE $8.50


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steerr(at)bellsouth.net
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PostPosted: Fri Dec 08, 2006 8:40 am    Post subject: Do instruments need shock mounting? Reply with quote
That's true, but the directions that came with my PAI-700 vertical card compass explicitly said the instrument should be shock mounted. I'm attaching a shock-mounted panel in front of the original structural panel. To do that, I've reinforced the structural panel with the usual "L" angle around the top and across the bottom so it ends up wuth a U-shaped channel behind the panel. The top angle can be shaped with a metal stretcher. I also have a vertical reinforcing "L" angle near the center. Then the center of the structural panel is cut out. The new front panel is then attached to this framework with vibration mounts I got from Reid Tool. Some folks have used multiple front panels so they can easily get access to the back of the panel. The removable top skin gives the same or better access, of course. Note that the reinforcing "L" angle costs about an inch of real estate around the edge of the original panel. I don't have any pictures of it, but can take some if anybody is interested.

Hope this helps.

Bill

[quote]

I've always heard that you should shock mount your gyros and the rest didn't matter. It seems to make sense, but there are a lot of panels that mount everything solid and don't seem to have any problems.


Quote:

The shock mounting for the gauges is new to me but makes sense.


Can some one send me a pictorial example of how this is acomplised!
Quote:


[b]

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rlalonde



Joined: 20 Nov 2006
Posts: 43
PostPosted: Fri Dec 08, 2006 9:41 am    Post subject: Do instruments need shock mounting? Reply with quote
For what it is worth, it is a cheap fix. I put the shock mounts on the panel
mount of my VP2 and it works great. Will do the same on this 601XL project.
Dont really know if it was necessary but I am sure it did not hurt. Better
safe than sorry, especially considering the cost of even the basic a/c
instruments.
Ron Lalonde
601XL
Debert, NS
Canada
[quote]I've always heard that you should shock mount your gyros and the rest
didn't matter. It seems to make sense, but there are a lot of panels that
mount everything solid and don't seem to have any problems.
---

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