KR> ELT Requirements, External ELT Antenna

[Mark Langford]

Dave Dunwoodie wrote:

>> I've been studying every KR2 picture I can find and a see only a handful
that have an ELA antenna visible.  This brings up a couple of (dummy me)
questions:
1.  Is an ELT required?  This may sound really stupid, but the lack of
visible antennas has me wondering now.
2.  What about an internal ELT antenna?  All of my other antennas are
internal, why not the ELT?  <<

See http://www.n56ml.com/antennas/10091413m.jpg for my mini-antenna farm. 
Left  to right are the ELT antenna (specially contoured for optimal results 
whether nosed into terra firma or hanging from the top of a pine tree), GPS 
antenna for laptop navigation applications, transponder (the secret here is 
a "Sister Schubert biscuit tin" ground plane cut to RF optimized 
proportions), APRS ham radio frequency tracker, GPS antenna for said APRS 
tracker, and in the vertical stab is the comm antenna, routinely good for 
150 miles.  All are internal, because 3/32 plywood and a layer of cheap 
paint isn't much of an obstacle to RF signals.  There's also the XM-WX 
weather reciever up front to pick up XM weather sattelite data.  There may 
be more antennas that I don't even remember at this point.  And people 
wonder why my plane is so heavy.

To address your particular concern, the ELT is a bit of a crap shoot.  One 
thing's for sure...if it's external it'll be the first thing to disappear 
during an off-airport landing.  Depending on speed of impact, the ELT may 
not end up anywhere near the antenna, especially if the landing was hard 
enough to activate it..  In that case, it probably doesn't matter where the 
antenna was...whatever it was fastened to may be gone entirely.  For these 
occasions, the APRS tracker is recommended.  It will show your last 
whereabouts down to about 500' AGL, depending on how far out in the boonies 
you were before impact.At 500', the search area is confined to a 
diameter that will ensure recovery of your remains in a very timely fashion. 
If you're using the new 406 MHz ELT, forces will be mobilized in about 15 
minutes, based on personal experience, and it shouldn't take long after 
that.  My wife has a link to my APRS track on her desktop, for just such an 
occasion...

Mark Langford,  channeling Foghorn Leghorn and the "fawtunately my feathuhs 
ahh numbuhed" routine
website at http://www.N56ML.com

It seemed funny at the time...

KR> ELT Requirements, External ELT Antenna

[Jeff Scott]

I replied to this post earlier today, but much like Larry's missing emails, it 
didn't go through.  My KR has comm, transponder, ELT, GPS, and PCAS antennas, 
but none of them are mounted externally.  Since wood and glass are essentially 
transparent to RF, all the antennas can be mounted internally. Jeff 
ScottN1213WLos Alamos, NM -- Original Message --

List-Post: krnet@list.krnet.org
Date: Mon, 21 Feb 2011 19:21:52 -0500

I've been studying every KR2 picture I can find and a see only a handful 
that have an ELA antenna visible.  This brings up a couple of (dummy me) 
questions:

1.  Is an ELT required?  This may sound really stupid, but the lack of 
visible antennas has me wondering now.

2.  What about an internal ELT antenna?  All of my other antennas are 
internal, why not the ELT?

Thanks!

Dave.
N1199P
N8325M



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KR> ELT Requirements, External ELT Antenna

[Ronald Wright]

If the plane is a 2 place, an ELT is required.  You don't have to have an 
external antenna, but you will get better transmission range with the external.
 
Ron

--- On Mon, 2/21/11, Dave Dunwoodie  wrote:


From: Dave Dunwoodie 
Subject: KR> ELT Requirements, External ELT Antenna
To: kr...@mylist.net
List-Post: krnet@list.krnet.org
Date: Monday, February 21, 2011, 6:21 PM


I've been studying every KR2 picture I can find and a see only a handful 
that have an ELA antenna visible.  This brings up a couple of (dummy me) 
questions:

1.  Is an ELT required?  This may sound really stupid, but the lack of 
visible antennas has me wondering now.

2.  What about an internal ELT antenna?  All of my other antennas are 
internal, why not the ELT?

Thanks!

Dave.
N1199P
N8325M


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KR> ELT Requirements, External ELT Antenna

[Bob Glidden]

Most ELTs have an internal antenna. 

Sent from my iPod

On Feb 21, 2011, at 7:21 PM, Dave Dunwoodie  wrote:

> I've been studying every KR2 picture I can find and a see only a handful 
> that have an ELA antenna visible.  This brings up a couple of (dummy me) 
> questions:
> 
> 1.  Is an ELT required?  This may sound really stupid, but the lack of 
> visible antennas has me wondering now.
> 
> 2.  What about an internal ELT antenna?  All of my other antennas are 
> internal, why not the ELT?
> 
> Thanks!
> 
> Dave.
> N1199P
> N8325M
> 
> 
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html

KR> test fit of conventional gear

[oceanmanus]

I like your entry on your web-site.  "Note to self...Don't build your own gear 
again.  LOL"


Looks great! Good job.

Joe Cygan
KR-2S
Texas



From: Craig Williams 
To: kr...@mylist.net
Sent: Mon, February 21, 2011 2:38:37 PM
Subject: KR> test fit of conventional gear

Well finally! My first milestone is within reach.  I test fit my gear today and 
should have the boat off the bench by the end of the week.  The Bingelis gear 
weight with disc brakes and minus the wheel and tire assy came in at 13 lbs 
each.  The height from the bottom of the spar to the ground came in at 18" 
(tires un-inflated) and the outside of the wheels are at 84 inches.  Once I get 
them powder coated and installed I will post some more pics on my web page.  
Anyone know the width on the Diehl gear so I can compare?

Craig
http://www.kr2seafury.com/9.html




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KR> ELT Requirements, External ELT Antenna

[Jeff Scott]

Dave, Wood and fiberglass are just about invisible to RF, so the antennas are 
often times installed internally.  I have no external antennas on my KR, but 
have the following antennas installed: Comm Radio, Transponder, ELT, GPS, and 
PCAS. Jeff ScottN1213WLos Alamos, NM -- Original Message --
I've been studying every KR2 picture I can find and a see only a handful 
that have an ELA antenna visible.  This brings up a couple of (dummy me) 
questions:

1.  Is an ELT required?  This may sound really stupid, but the lack of 
visible antennas has me wondering now.

2.  What about an internal ELT antenna?  All of my other antennas are 
internal, why not the ELT?
Dave.
N1199P
N8325M



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Part-Time job ($20-$65/hr). Requirements: Home Internet Access
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KR> ELT Requirements, External ELT Antenna

[Dave Dunwoodie]

I've been studying every KR2 picture I can find and a see only a handful 
that have an ELA antenna visible.  This brings up a couple of (dummy me) 
questions:

1.  Is an ELT required?  This may sound really stupid, but the lack of 
visible antennas has me wondering now.

2.  What about an internal ELT antenna?  All of my other antennas are 
internal, why not the ELT?

Thanks!

Dave.
N1199P
N8325M

KR> test fit of conventional gear

[Craig Williams]

Well finally! My first milestone is within reach.  I test fit my gear today and 
should have the boat off the bench by the end of the week.  The Bingelis gear 
weight with disc brakes and minus the wheel and tire assy came in at 13 lbs 
each.  The height from the bottom of the spar to the ground came in at 18" 
(tires un-inflated) and the outside of the wheels are at 84 inches.  Once I get 
them powder coated and installed I will post some more pics on my web page.  
Anyone know the width on the Diehl gear so I can compare?

Craig
http://www.kr2seafury.com/9.html