Today's Message Index:
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1. 11:46 AM - Dimple vs countersink areas on main longerons (James S Clark IV)
2. 04:24 PM - Re: Re: RV-8A Ideal ELT Location & Antenna (Charles Kuss)
3. 10:35 PM - Re: Adhesive? (Chris Colohan)
Message 1
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| Subject: | Dimple vs countersink areas on main longerons |
RV7:
Reading online threads it looks like the advice is to:
(Areas where top & bottom skins overlap at longeron): Machine
countersink through the lower skin and into the longeron to accept a
dimple made in the top skin
Question:
(Areas where lower skin has no overlapping top skin):
Should I dimple the lower skin and full countersink the longeron to
accept the dimple?
OR:
Should I machine countersink the lower skin and longeron (1 step).
(Leaves undesireable thin sidewall bearing area on skin)
Thanks,
Jim Clark
Message 2
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| Subject: | Re: RV-8A Ideal ELT Location & Antenna |
Robin,
I would suggest that you NOT follow Matt's installation of the ELT, as it does
not meet the recommendations of the FAA for ELT mounting. The FAA recommends
mounting the ELT where:
#1 A 100 pound weight can be set on the area of the ELT, without any flexing
of the mount.
#2 The mount can support a 300 pound load without breaking.
These recommendations are to prevent failure of the mount during a crash AND to
prevent the ELT from triggering during a hard landing, due to a flimsy mount.
The battery/bell-crank cover is flimsy, even with a doubler.
A better location would be on the floor [in front of, under or behind the battery/bell-crank
cover]. Place the bracket between the lower longeron and the fore/aft
belly rib. This will give you the required strength.
I can supply photos off list if desired.
Charlie Kuss
snipped
>
> At 07:44 PM 8/25/2010 Wednesday, Robin Marks wrote:
> >Is there an ideal location for the ELT and ELT Antenna
> on an RV-8A?
> >
> >Thanks,
> >Robin
>
> Hi Robin,
>
> Here's a ton of documentation on what I did with the
> installation of the ELT and antenna.
snippped
>
> http://www.mattsrv8.com/users/display_log.php?user=MattsRV8&project=638&category=2971&log=77848&row=48
>
> http://www.mattsrv8.com/users/display_log.php?user=MattsRV8&project=638&category=2971&log=77849&row=47
>
> http://www.mattsrv8.com/users/display_log.php?user=MattsRV8&project=638&category=2971&log=77850&row=46
>
>
>
> -
> Matt Dralle
> RV-8 #82880 N998RV
> http://www.mattsrv8.com - Matt's RV-8 Construction Log
> http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV
> YouTube Channel
> Status: 90+ Hours TTSN - Enjoying Every Minute...
>
>
> Forum -
> FAQ,
> - MATRONICS WEB FORUMS -
> List Contribution Web Site -
> -Matt
> Dralle, List Admin.
>
>
>
>
Message 3
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On Fri, Aug 27, 2010 at 8:43 PM, Charlie England <ceengland@bellsouth.net>wrote:
>
> If it were mine, I'd pull it back into place with grabbers, bent safety
> wire, coathangers, etc, then use any of the 'sensor-safe' RTV sealants
> (non-corrosive) to lock it in. Having said that, unless the little lock
> tangs are actually broken, it will probably stay in place when not being
> abused by a bucking bar.
Got a "lighted pick-up" from Home Depot, and some blue RTV from Auto Zone.
Worked like a charm, took me less than 2 minutes to fish it out, clip it
back into place, and put on a dab of RTV to make extra sure it stays where
it belongs.
Thank you!
Chris
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