VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #1  
Old 02-20-2017, 09:31 PM
dave4754 dave4754 is offline
 
Join Date: Oct 2009
Location: Edson, Alberta, Canada
Posts: 399
Default ELT Antennae location

I have agonized over this for months and finally decided to install the Rami 200 elt antennae, it will service a Kinnad Compact ELT.

What are your thoughts on this installation

https://1drv.ms/f/s!Apov9vtfo19vyQRzashmQQ0FsTjO

It is placed just behind the passenger seat and tucked in behind the roll bar post on the shelf on top of the flaps There is no impediment to the flaps and the wiring is safely secured with zip ties and fasteners behind the panel.

I have one of those Commant 200 VHF/GPS antennae on top already and really didnt want to have anymore drag up there.

The signal should go through the plex, I will test this when i get the Kannad recertified.

Any thoughts?
__________________
Dave Cobb
=VAF=2017 Donation - and a bit extra for great work!
Empennage RV 7 - Tipper
Wings complere

Fuse coming along, Canopy looking good!
AME reviewed and repaired O-320-Lyc installed
Reply With Quote
  #2  
Old 02-20-2017, 10:16 PM
bret's Avatar
bret bret is offline
 
Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,659
Default

My Kannad is in the baggage area also, the antenna is there too, the new 406 has a built in GPS antenna also so I wanted it to have a clear view of the sky, won't help it I end up upside down, but, I have a spare com antenna lead I can hook up in that case
__________________
7A Slider, EFII Angle 360, CS, SJ.
2017 gladly supported
Reply With Quote
  #3  
Old 02-20-2017, 11:41 PM
Bevan Bevan is offline
 
Join Date: Sep 2007
Location: BC
Posts: 1,435
Default

Dave,

My Ack 04 antenna is in a similar position. Mounted to a flange riveted to the top fuse longeron. The antenna is bent in a slight curve so it doesn't touch the plexi.

Bevan
__________________
RV7A Flying!
O-360-A1F6 (parallel valve) 180HP
Dual P-mags
Precision F.I. with AP purge valve
Vinyl Wrapped Exterior
Grand Rapids EFIS
Located in western Canada
Reply With Quote
  #4  
Old 02-21-2017, 03:37 PM
Raymo's Avatar
Raymo Raymo is offline
 
Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 1,344
Default

Mine is in the same location but slightly further aft. Since I have a slider, I was able to drill a hole in the turtle deck support bracket and put the tip of the antenna through the hole (barely visible in the photo).

__________________
Ray
RV-7A - Slider - N495KL - First flt 27 Jan 17
O-360-A4M w/ Catto 3 blade NLE, AFP FM-150 FI, 1 PMag, Vetterman Trombone Exh, SkyTech starter,
PlanePower Alt, FlightLines Interior, James cowl & plenum
All lines by TSFlightLines
NSDQ

"The object of the game, gentlemen, is not to cheat death: the object is not to let him play."
Patrick Poteen, Sgt. U.S. Army


- - 2016/17 donation compliant - -
Reply With Quote
  #5  
Old 02-21-2017, 04:13 PM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 2,121
Default

There is a school of thought that believes a crash may cause the plane in an upside down position (specially for a RVx-A) and in such cases the chance of ELT antennae will be in an upside down and not as good for transmitting.

I have mounted mine in the tail portion under the fiberglass cover. I am not saying that it is a better place or worse, only that I thought it has a better chance of survival in a damage.
__________________
Mehrdad
RV7A - IO360M1B - SOLD
Dues paid
Reply With Quote
  #6  
Old 02-22-2017, 02:21 PM
StickNRudder StickNRudder is offline
 
Join Date: Apr 2015
Location: Tustin, CA
Posts: 24
Default

Regardless of where the antenna is, give thought to making sure the ant cable survives the crash as well. Routing it well dressed through multiple bulkheads is probably not a good idea.
__________________
Rick Woods
N5427W == Jack, Hank, Barbara, and Rick Woods.
RV-7
Flying, but not done, never done.
Reply With Quote
  #7  
Old 02-22-2017, 02:59 PM
dave4754 dave4754 is offline
 
Join Date: Oct 2009
Location: Edson, Alberta, Canada
Posts: 399
Default Thanks all

Not sure if my photos got through i am using the One Drive and it appears it might be asking for passwords, if so my apologies.

I am hoping that any crash will be controlled and flown to the last breath of air under her wings which should leave us upright. That being said the antennae is nearly exactly upright and pointed through the plexiglass.

I was once Air Deputy in CASARA here in Canada and I know how frustrating it can be to try finding a weak signal. The ELT has the facility to advise of impact on 406 MHZ and help SAR techs to find it with 121.5 MHZ locaters.

Lets hope two things:
1/ We NEVER have to use it
2/ It is in the right place for the best signal

Thanks again all it sure is great to have this forum to bounce things like this off people.

Dave
__________________
Dave Cobb
=VAF=2017 Donation - and a bit extra for great work!
Empennage RV 7 - Tipper
Wings complere

Fuse coming along, Canopy looking good!
AME reviewed and repaired O-320-Lyc installed
Reply With Quote
  #8  
Old 02-28-2017, 08:33 AM
bret's Avatar
bret bret is offline
 
Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,659
Default

On the 406, how long till the signal gets broadcast if the manual switch is activated on the panel? Is there a delay or instant? My plan should I ever need it is, if ditching in a remote area is to activate the ELT just before.......remote landing-tree branch trimming. So how soon before impact? 30 sec, 90 sec?
__________________
7A Slider, EFII Angle 360, CS, SJ.
2017 gladly supported
Reply With Quote
  #9  
Old 02-28-2017, 11:10 AM
dave4754 dave4754 is offline
 
Join Date: Oct 2009
Location: Edson, Alberta, Canada
Posts: 399
Default ELT activation

i dont know how this KAnnad works but when we used them in Search and Rescue work when the switch was armed it went off right away.

I cant see why that wouldnt still be the case.
__________________
Dave Cobb
=VAF=2017 Donation - and a bit extra for great work!
Empennage RV 7 - Tipper
Wings complere

Fuse coming along, Canopy looking good!
AME reviewed and repaired O-320-Lyc installed
Reply With Quote
  #10  
Old 02-28-2017, 05:07 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,546
Default

Quote:
Originally Posted by StickNRudder View Post
Regardless of where the antenna is, give thought to making sure the ant cable survives the crash as well. Routing it well dressed through multiple bulkheads is probably not a good idea.
Good idea. My cable goes through one bulkhead, but I used an oversized bushing and coiled the excess cable together with Velcro straps, so hopefully it'll pay out in a crash and remain intact.
__________________
Doug
RV-9A "slider"
Flew to Osh in 2017!
Tail number N427DK
Donation made for 2017
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 11:21 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.