Today's Message Index:
----------------------
1. 06:25 AM - Re: Re: ELT Antenna Location (PWilson)
2. 07:55 AM - Re: Re: ELT Antenna Location (Dj Merrill)
3. 01:04 PM - 2006 Seminar Schedule (Robert L. Nuckolls, III)
4. 05:39 PM - Re: ELT Antenna Location ()
5. 05:45 PM - bleed through noise from my KNS 80 ? (Guy and Jill Foreman)
Message 1
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| Subject: | Re: ELT Antenna Location |
--> AeroElectric-List message posted by: PWilson <pwmac@sisna.com>
And you probably wished you could call your loved ones to tell them
you survived while waiting for the rescue which you have no control of.
Paul
===========At 04:57 PM 9/1/2005, you wrote:
>--> AeroElectric-List message posted by: "Bill Denton" <bdenton@bdenton.com>
>
>How fast can you dial a number when you are unconscious?
>
>How fast can you dial a number when two broken arms?
>
> >From the beginning of serious injury to death covers a pretty broad range,
>and a properly installed ELT will trigger when the plane crashes; you don't
>have to dial any numbers.
>
>A 121.5 mhz unit is now about $200. A 406 mhz unit is now available for less
>than $1,000.
>
>And I imagine that when you regain consciousness after a long night out in
>the middle of South Dakota or some place, you'd really wish you'd dropped
>the grand...
>
>
>-----Original Message-----
>From: owner-aeroelectric-list-server@matronics.com
>[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of
>PWilson
>To: aeroelectric-list@matronics.com
>Subject: Re: AeroElectric-List: Re: ELT Antenna Location
>
>
>--> AeroElectric-List message posted by: PWilson <pwmac@sisna.com>
>
>Another perspective.
> Way to much worries about ELTs. Install the cheapest ELT that meets
>the FAA requirements and don't depend on it. Then buy a sat phone. If
>you survive the event and have a handy list of phone numbers and a
>minimal GPS then you are set. In N America weather permitting you
>could expect the SAR chopper to be there pretty quick. The cost of
>the phone is pretty cheap insurance and they usually include a few
>free minutes each month. Weight - the things are not light weight -
>less than an elt. They have wide use for explorers and mountain
>climbers. If you are watching the news lately some of the video is
>via sat phone. Nice thing about a sat phone, unlike a cell phone, it
>works anywhere. BTW, there are two sat phone providers and they have
>used and rental handsets available.
>An example would be the desert racers where each team has a bunch of
>sat phones and the phone numbers for each other, and for the rescue
>and chase choppers for the events. The sat phones are credited for
>many life saving incidents. When traveling alone a hundred miles from
>a town which can provide no help for a broken vehicle its nice to
>call your buddy in San Diego and have him bring a trailer to bring
>you home. That method may take a couple of days and hopefully is not
>life threatening. This kind if happening probably is something that
>is done all the time with no fanfare and no dealings with the Mexican
>authorities. A big advantage.
> The local hiking club here in Colorado has one they pass from
>leader to leader, trip to trip. The first time they tested it they
>dialed 911. Ha, they got a message in French. No way to make the
>prearranged call to the local sheriff. Just goes to show you need to
>have an appropriate number to call. Like your evacuation insurance
>company or the sheriff in the jurisdiction where you are located or
>all of them along your flight path. Not hard to get the numbers if
>one does homework before departing. I suppose one could even call the
>FAA/NTSB for more trouble than you would want. :-)
> Of course the cell phone and GPS are legendary for getting
>immediate rescue. Lots of stories using that method as well, but not
>much help in some parts of the world. Trouble is planes don't usually
>end up on a high peak or ridge for acceptable cell reception. They
>usually end up in the bottom of the canyon. The sat phone has a good
>chance like the GPS or ELT of getting a usable signal.
> Regards, Paul
>====================
>
>At 02:21 PM 9/1/2005, you wrote:
> >--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
> ><nuckollsr@cox.net>
> >
> >At 07:52 AM 8/30/2005 -0500, you wrote:
> >
> > >--> AeroElectric-List message posted by: ldodgesr@mmm.com
> > >
> > >
> > >ELT antenna location
> > >
> > >I am installing an ELT in my RV-6 aircraft. Since it has a plastic
>canopy,
> > >it would seem that the antenna can be installed inside the fuselage under
> > >the canopy. Are there any special rules regarding separation from metal
> > >structure such as side walls? I am aware of the common requirements, i.e.
> > >vertical orientation, closeness to other antennas, etc.
> >
> > There are no "rules" . . . only a handful of suggestions
> > for optimizing performance in case the ELT is really needed.
> > But given all the variables that surface after the crumpling
> > and rolling has stopped, there is nothing you can do that will
> > optimize ELT operations for all foreseeable outcomes.
> >
> > Given further that ELT's add almost nothing to your chances
> > of survival in an accident, it seems that ANY way you want
> > to install it will comply with the letter of Part 91 even
> > if it misses the intent by a country mile. Keep a VHF Comm
> > hand held, cellphone and GPS in your flight bag . . . if you're still
> > up and running after the airplane is dead, these critters
> > will contribute far more to your chances of survival than the
> > ELT.
> >
> > Bob . . .
> >
> >
>
>
Message 2
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| Subject: | Re: ELT Antenna Location |
--> AeroElectric-List message posted by: Dj Merrill <deej@thayer.dartmouth.edu>
PWilson wrote:
> --> AeroElectric-List message posted by: PWilson <pwmac@sisna.com>
> And you probably wished you could call your loved ones to tell them
> you survived while waiting for the rescue which you have no control of.
>>--> AeroElectric-List message posted by: "Bill Denton" <bdenton@bdenton.com>
>>A 121.5 mhz unit is now about $200. A 406 mhz unit is now available for less
>>than $1,000.
My personal compromise was the standard ELT in the plane
(it has been there for many years) and the purchase of a new
PLB (Personal Locater Beacon) with built in GPS. $650 from Spruce:
ACR 406 Locator Beacon w/GPS 11-02899
http://www.aircraftspruce.com/catalog/pspages/406plb.php
-Dj
--
Dj Merrill
Sportsman 2+2 Builder #7118
"Many things that are unexplainable happen during the construction of an
airplane." --Dave Prizio, 30 Aug 2005
"TSA: Totally Screwing Aviation"
Message 3
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| Subject: | 2006 Seminar Schedule |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
Dee and I are starting to plan the 'Connection's activities
for 2006 which includes weekend seminars. Many folks think we
just pick a spot on the map and post the date. Actually, these
programs are offered by invitation from a group of folks who
believe there's enough local interest to warrant the trip.
If anyone out there knows their EAA chapter programs/activities
chairperson and thinks they'd be interested in hosting a seminar,
I'd be pleased to hear from them. Right now, the 2006 calendar is
wide open. Thanks!
Bob . . .
--------------------------------------------------------
< Throughout history, poverty is the normal condition >
< of man. Advances which permit this norm to be >
< exceeded -- here and there, now and then -- are the >
< work of an extremely small minority, frequently >
< despised, often condemned, and almost always opposed >
< by all right-thinking people. Whenever this tiny >
< minority is kept from creating, or (as sometimes >
< happens) is driven out of a society, the people >
< then slip back into abject poverty. >
< >
< This is known as "bad luck". >
< -Lazarus Long- >
<------------------------------------------------------>
http://www.aeroelectric.com
Message 4
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| Subject: | Re: ELT Antenna Location |
--> AeroElectric-List message posted by: <gmcjetpilot@yahoo.com>
FAA requires ELTs meet TSO C-91a. The ELT should be installed per the manufactures
TSO approved installation data and instructions. The manufacture can only
make suggestions. The installer certifies the installation is acceptable. However
the antenna is an approved part of the ELT's TSO. Substitution of a rubber
duck antenna is dubious, unless you test it. Also aviation circular AC 43.13-2A,
Chapter 2 Paragraph 28 states "Follow the manufactures installation procedures
when available".
The requirement for an ELT, per FAR part 91.207, does NOT address installation
except to say:
91.207(d)(1) Each emergency locator transmitter required by paragraph (a) of this
section must be inspected ..........for -- (1) Proper installation.
Proper installation means, following the approved installation, parts and instructions?
However as the installer you approve it.
My ELT came with the installation instructions: ELT unit and antenna be mounted
so the coax is routed not to cross a bulkhead, requires the (supplied) antenna
be mounted external to the aircraft, vertically and at a location as far away
as practical from other antennas. The instructions also specify strength of
the mounting brackets for ELT and antenna (100 times the static weight of the
ELT or antenna). If there is a chance the structure can deform and pull the coax
out a tether needs to be installed between the antenna mount and ELT unit
mount. Install as far aft as possible (baggage compartment OK).
Now Rubber ducky antennas, mounting antennas horizontal inside the wing tip, tail
fairing or in the cockpit can work, but it is not per the manufactures instructions
(unless using the all in one EBC ELT). Even experimental aircraft must
meet part 91. Part 91 requires a TSO'ed C-91a, end of story.
Cel Phones, Sat phones are great, smoke signals, personal hand held 406 ELTs (w/ internal GPS position) are also cool http://www.tlrsystems.com/products/personal-locator-beacon.html
However these above devices do not negate the regulation for an aircraft mounted
ELT that automatically activates. When the 406 units are required you will have
two antennas to deal with. The new ELTs use two antennas, one for the 121.5
freq and another for the 406 freq.
I will leave the debate about whether an ELT can save your life to the experts.G
>Date: Sep 01, 2005
>From: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
>Subject: Re: ELT Antenna Location
>
>
>ELT antenna location
>
>I am installing an ELT in my RV-6 aircraft. Since it has a plastic canopy,
>it would seem that the antenna can be installed inside the fuselage under
>the canopy. Are there any special rules regarding separation from metal
>structure such as side walls? I am aware of the common requirements, i.e.
>vertical orientation, closeness to other antennas, etc.
There are no "rules" . . . only a handful of suggestions
for optimizing performance in case the ELT is really needed.
But given all the variables that surface after the crumpling
and rolling has stopped, there is nothing you can do that will
optimize ELT operations for all foreseeable outcomes.
Given further that ELT's add almost nothing to your chances
of survival in an accident, it seems that ANY way you want
to install it will comply with the letter of Part 91 even
if it misses the intent by a country mile. Keep a VHF Comm
hand held, cellphone and GPS in your flight bag . . . if you're still
up and running after the airplane is dead, these critters
will contribute far more to your chances of survival than the
ELT.
Bob . . .
---------------------------------
Message 5
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| Subject: | bleed through noise from my KNS 80 ? |
--> AeroElectric-List message posted by: "Guy and Jill Foreman" <guyjill01@hotmail.com>
I have a Lancair 320 with a KNS 80 Nav system installed. I did all the
wiring myself, ( probbly why I have a Problem). With all the other avionics
on, and the KNS 80 "OFF" I have no static noise going through my headset.
When I turn the KNS 80 "ON" I get static through my headset. Something else
thats weird is when I turn the volume up on the KNS 80, the static gets
louder, and the audio panel is "OFF" Any Advise???
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