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Where to put ELT?

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a.s.elliott(at)cox.net
Guest

Posted: Fri Jan 05, 2007 9:20 am Post subject: Where to put ELT?

I am considering where and how to mount the ELT in my 601XL.  It need  to be mounted fairly robustly to primary structure.  I have come up with a  concept for mounting it with an .032 bracket in the tail between and above the  top longerons.  This is shown in a drawing on

  

  http://members.cox.net/n601ge/drawings/ELT_bracket.html

  



 There is a flattened pattern for this bracket at 

  

  http://members.cox.net/n601ge/drawings/ELT_bracket_flat.html

  

 Note that some dimensions seem a bit odd due to allowances for bend  radii.

  

 I would appreciate any comments on this concept, or other options for  mounting the ELT.

  

 Thanks,

 Andy Elliott, Mesa, AZ

N601GE (reserved)

601XL/TD/QB, Corvair,  building...



   [quote][b]

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dredmoody(at)cox.net
Guest

Posted: Fri Jan 05, 2007 10:25 am Post subject: Where to put ELT?

Andy, I'm planning on mounting my ELT in the area directly behind the right seat. There appears to be adequate room there behind the aileron cables. If the mount is well secured to the bottom channel of the rear frame, it will survive a crash better than I will in the left seat. The flap motor should allow room for the strobe driver unit directly behind my left seat. Those sites are fairly accessible by pulling out the seat upholstery and/or through the belly hatch. 



Unless you are planning on a heavy engine, be careful how far away from the cg you locate equipment or additional structure.



Ed Moody II



---- "Dr. Andrew Elliott" <a.s.elliott(at)cox.net> wrote: 

 	  Quote: 	
		   I am considering where and how to mount the ELT in my 601XL.  It need to be mounted fairly robustly to primary structure.  I have come up with a concept for mounting it with an .032 bracket in the tail between and above the top longerons.

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larry(at)macsmachine.com
Guest

Posted: Fri Jan 05, 2007 10:41 am Post subject: Where to put ELT?

Hi Andy,

I placed my ELT on a panel between the rudder cables, riveted to lower 

longerons.

The panel has a hinged piece to open from the bottom for battery 

replacement.

It uses U-nuts to secure the hinged panel and lid.  Very accessible and 

strong.

See links,



http://www.macsmachine.com/images/largeassembly2/full/eltdwg.gif

http://www.macsmachine.com/images/largeassembly2/full/eltwired.gif

http://www.macsmachine.com/images/largeassembly2/full/eltdoor.gif



Larry McFarland - 601HDS at www.macsmachine.com



Dr. Andrew Elliott wrote:

 	  Quote: 	
		   I am considering where and how to mount the ELT in my 601XL.  It need 

 to be mounted fairly robustly to primary structure.  I have come up 

 with a concept for mounting it with an .032 bracket in the tail 

 between and above the top longerons.  This is shown in a drawing on

  

 http://members.cox.net/n601ge/drawings/ELT_bracket.html

  

 There is a flattened pattern for this bracket at

  

 http://members.cox.net/n601ge/drawings/ELT_bracket_flat.html

  

 Note that some dimensions seem a bit odd due to allowances for bend radii.

  

 I would appreciate any comments on this concept, or other options for 

 mounting the ELT.

  

 Thanks,

 Andy Elliott, Mesa, AZ

 N601GE (reserved)

 601XL/TD/QB, Corvair, building...

 *===========================================



 *

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craig(at)craigandjean.com
Guest

Posted: Fri Jan 05, 2007 11:24 am Post subject: Where to put ELT?

Many mount it under the luggage shelf on the right side.  Then they just use a whip antenna bent along under the canopy. I'm installing an  external antenna and one of the newer 406 MHz ELTs so that it has a better  chance of saving my life instead of just being an item to placate the  inspector.

  

 The cheapest 406 MHz ELT I could find was the Artex ME406. Spruce has them for $865:

  

 http://www.aircraftspruce.com/catalog/avpages/artexme406.php

  

 -- Craig

[quote] [b]

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a.s.elliott(at)cox.net
Guest

Posted: Fri Jan 05, 2007 12:22 pm Post subject: Where to put ELT?

Ed:

  

 Thanks for the idea and the warning.  It is a long arm back  there.  In certified aircraft, you usually find the ELT as far back as they  can get away with, which improves the chances of it surviving a  crash.  

  

 I will be using a Corvair installation, which is about as heavy as an  O-200, so I expect I'll be OK.  The QB/TD kit comes with lighter skins in  the rear, which also helps.  Of course, battery location is held off  until last for final balancing, with the pair of PC-680's I'm planning on  weighing about the same a 1 regular aviation battery.

  

 Andy Elliott, Mesa, AZ

N601GE (reserved)

601XL/TD/QB, Corvair,  building...

 [quote]   ---

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Tim Juhl

Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan

Posted: Fri Jan 05, 2007 1:29 pm Post subject: Re: Where to put ELT?

For many years I was the "go to" guy in Michigan Wing CAP for ELT search.  For those of you planning ELT installations I have a few comments.



1.)  If you are serious about being located if you go down (and trust me, people do)  buy one of the new 406 MHz ELTs.

2.)  Pay attention to the antenna location - rigid antennas on the exterior of the airframe frequently get wiped off (especially if the plane ends up on it's back) 406 MHz antennas are about 7 inches long so you might squeeze it under the canopy and give it a little protection.

3.)  I've seen a lot of downed aircraft with the tail section severely damaged.  I would put the ELT closer to the cockpit in an area where there is a lot of fuselage structure.  If the cockpit survives, both you and the ELT have a chance.



Tim

Do  Not Archive

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_________________
______________
CFII
Champ L16A flying
Zodiac XL - Jabiru 3300A
Almost done! It'll fly in spring!

carlossa52(at)gmail.com
Guest

Posted: Fri Jan 05, 2007 1:46 pm Post subject: Where to put ELT?

Tim, I consider your comments "archivable", so here it goes again...



Carlos 

CH601-HD, plans

Montreal, Canada



On 05/01/07, Tim Juhl  <juhl(at)avci.net (juhl(at)avci.net)> wrote:[quote]--> Zenith-List message posted by: "Tim Juhl" < juhl(at)avci.net (juhl(at)avci.net)>



For many years I was the "go to" guy in Michigan Wing CAP for ELT search.  For those of you planning ELT installations I have a few comments.



1.)  If you are serious about being located if you go down (and trust me, people do)  buy one of the new 406 MHz ELTs. 

2.)  Pay attention to the antenna location - rigid antennas on the exterior of the airframe frequently get wiped off (especially if the plane ends up on it's back) 406 MHz antennas are about 7 inches long so you might squeeze it under the canopy and give it a little protection. 

3.)  I've seen a lot of downed aircraft with the tail section severely damaged.  I would put the ELT closer to the cockpit in an area where there is a lot of fuselage structure.  If the cockpit survives, both you and the ELT have a chance. 



Tim

D* N*t Archive



--------

D* N*T ARCHIVE

______________

CFII

Champ L16A flying

Zodiac XL - Working on wings[b]

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4rcsimmons(at)comcast.net
Guest

Posted: Sat Jan 06, 2007 7:43 am Post subject: Where to put ELT?

Sorry list!  

   

I read further and have an explanation on the carbs.  

   

Thanks,  

Rich  

Do not archive  

       [quote][b]

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