|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

10-14-2009, 02:44 PM
|
|
|
|
Join Date: Jan 2005
Posts: 206
|
|
GPS @ FWF
For those who have mounted their gps fwf under the cowl.How has it worked out for you ? Any problems that you know of like heat or vibration that may interfere with prorer operation ?? What about type of paint being a problem ?
I'd like to mount mine this way but checking those that have gone before me first.
Thanks
Bob
|

10-14-2009, 02:56 PM
|
 |
|
|
Join Date: Mar 2005
Location: Mansfield TX
Posts: 339
|
|
Have my GNS430 and XM Weather antennas under the cowling. Cowl is painted with metallic paint. I have no reception issues, everything is working fine.
|

10-14-2009, 04:27 PM
|
 |
VAF Moderator / Line Boy
|
|
Join Date: Jan 2005
Location: Dayton, NV
Posts: 12,256
|
|
430 antenna under the cowling, JetGlo paint, zero difficulties in four years and 1,000 hours....
Paul
__________________
Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com
|

10-14-2009, 08:42 PM
|
 |
|
|
Join Date: Jul 2009
Location: Mojave
Posts: 4,652
|
|
The -8 in my hangar has two GPS and the XM antenna on a shelf on the firewall. Works fine, but sure makes it a pain to get your hands under there to get the cowl off or do any work. I'd much rather see them on the glareshield or aft fuselage under the bubble.
__________________
WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.
Michael Robinson
______________
Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
|

10-15-2009, 02:32 PM
|
 |
|
|
Join Date: Mar 2005
Posts: 397
|
|
2 gps antennas and the XM antenna
No problems in 750 hours. Jetglo paint. I do lose the XM radio signal when I bank > 60 degrees away from south, but comes right back after leveling. Don't think this is because it is under the cowl though. 
__________________
Rusty "Rooster" Williams
N357RV RV-7A Tip Up (flying and Painted!) - 1560+ hrs.
Superior XP-360, carbureted, Hartzell 74" Blended Airfoil Prop
Grand Prairie, TX
KGPM
|

10-18-2009, 10:29 AM
|
|
|
|
Join Date: Jan 2005
Posts: 206
|
|
Thanks all for the reply.
Made my mount over the weekend worked out fine. HINT If you are planning to do the same and are thinking of mounting it on the Right side firewall top
remember that there is a cowling access door AND oil dip stick that may get in the way.Ask me how I know (and I didn't spot it one of my neighbors did).It is now mounted on the left side.
Bob
|

10-27-2009, 03:38 PM
|
 |
|
|
Join Date: Jul 2006
Location: Memphis, TN
Posts: 117
|
|
On the left side is an oil filter. If you have the 90 degree model, that would certainly preclude the gps shelf being on that side.
__________________
Craig MacArthur
RV-8 TMXIO360
|

10-27-2009, 04:22 PM
|
 |
|
|
Join Date: Jan 2005
Location: Lake St. Louis, MO.
Posts: 2,346
|
|
Quote:
Originally Posted by Bob Hoffman
.....I'd like to mount mine this way but checking those that have gone before me first......
|
Bob,
It seems to me many of the responses are assuming you plan to install Garmin and in that case the antenna should work just fine mounted under the cowl. My firewall mounted 430 antenna has performed perfectly for several years but I contacted Garmin tech before I did do so just to be sure. I expect the same performance with the 496 antenna mounted similarly in the -8.
It is important to note that other GPS manufacturer's antennas may not be designed to tolerate the heat and vibration that exists under the cowl. If you are going to install a GPS other than Garmin, it may be prudent to contact the GPS manufacturer first.

__________________
Rick Galati
RV6A N307R"Darla!"
RV-8 N308R "LuLu"
EAA Technical Counselor
Last edited by Rick6a : 11-01-2009 at 11:09 AM.
Reason: insert photos
|

10-27-2009, 07:05 PM
|
 |
|
|
Join Date: Jun 2008
Location: Charlottesville, VA
Posts: 801
|
|
Rather than attach my antennas to the firewall, I made a 'shelf' out of .090" 2024T3 with aluminum angle added for rigidity. Attached to engine mount using adel clamps and spacers. Works great and think there's less vibration than mounting on the firewall. If anyone wants a picture I can post, but it might be a few days before I can.
__________________
Jim Shannon
RV-8 N52VV
Charlottesville, VA
AFS 4500 EFIS & 3400 EFIS/EM
G430W - SL30 - G327 - G696 - G240
TT DigiFlight II VSVG w/pitch autotrim
VP-X Pro
|

10-28-2009, 07:29 AM
|
|
|
|
Join Date: Jan 2005
Posts: 206
|
|
Yes , a picture (or two) would be appreciated.
Bob
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 07:29 AM.
|