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06-03-2009, 01:43 PM
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Join Date: Nov 2005
Location: Palm Beach Gardens, Fl
Posts: 402
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ELT Antennae In Wing Tip
Has anyone mounted an ELT antennae in one of the wing tips? I know the empanage fiberglass fairing is a popular option, and my thought is if you really needed the ELT to broadcast and are upside down, the antennae could still see the sky thru which ever side is up. If this is an OK idea, how would I create a ground plane?
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Bud Smith, RV-8, ECI IOX360 , Dual PMags, Dynon SkyView, Whirlwind 200GA, IFR and N88ZP has "slipped the surly bonds of earth".   
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06-03-2009, 01:48 PM
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Super Moderator
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Join Date: May 2005
Location: Locust Grove, GA
Posts: 2,624
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In my opinion, I don't think it would be a good idea, as there would be a chance for the antenna cable being severed in the accident (if the ELT unit is in the fuselage), and would render the signal very weak.
Vic
__________________
 Vic Syracuse
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
Kitplanes "Unairworthy" monthly feature
EAA Sport Aviation "Checkpoints" column
EAA Homebuilt Council Chair/member EAA BOD
Author "Pre-Buy Guide for Amateur-Built Aircraft"
www.Baselegaviation.com
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06-03-2009, 02:13 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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Vic is right. You really don't want you ant lead going through bulkheads and/or ribs.
I don't think a wingtip installation will satisfy the antenna installation requirements for the ELT's TSO.
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Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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06-03-2009, 03:03 PM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Just remember all those pictures of airplanes that lost their wings in an accident, many of them lost their wings. If your ELT antenna was out in the wing tip, it would be ripped off along with your wing.
Do a search on "ELT Antenna" and you will find many suggestions on where to locate them.
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Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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