Thorp Air Command - T18.net

Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
It is currently Sun Apr 28, 2024 3:03 am

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 5 posts ] 
Author Message
SHIPCHIEF
PostPosted: Mon Jun 18, 2012 11:34 am 
Sr. Member
Sr. Member

Joined: Tue Nov 29, 2011 9:05 pm
Posts: 471
Location: USA
N883FF has a VOR antenna in the tip of the vertical stab, just like many depicted on this site.
Right now the ship has no NAV radio. I'm thinking about removing it so I don't "put my eye out" when working back there.
If I take it off, will I pick up a few miles per hour?
What about other drag producers? My COM radio is behind the canopy, seems to communicate well, radio checked a guy over 50 miles away.
Transponder antenna is under the co-pilot seat.
Are these the best accepted locations?
Right now we use a hand held GPS and / or a GPS equipped iPad, with no intent to fly IFR.


Top
 Profile  
 
Fraser MacPhee
PostPosted: Mon Jun 18, 2012 11:41 am 
Sr. Member
Sr. Member

Joined: Wed Oct 21, 2009 8:57 am
Posts: 722
Images: 19
Location: USA
Chief - did just that over the winter - glassed in the small gap where the eye pokers protruded - did not notice any speed increase - - the comm antennae is in the right place as is the X-ponder antennae.


Top
 Profile Personal album  
 
Rich Brazell
PostPosted: Mon Jun 18, 2012 7:40 pm 
Hero Member
Hero Member

Joined: Wed Oct 21, 2009 12:33 pm
Posts: 3095
Images: 64
Location: Jamul, CA (San Diego area)
Put the comm ant. on the bottom. 45 degree bent SS. No more black eyes ! Ground clearance is NOT a problem. My transponder is on the pilots side just aft of the gear leg. Made running the ant. wire easier. No complaints from ATC.

RB


Top
 Profile Personal album  
 
Fraser MacPhee
PostPosted: Mon Jun 18, 2012 8:38 pm 
Sr. Member
Sr. Member

Joined: Wed Oct 21, 2009 8:57 am
Posts: 722
Images: 19
Location: USA
Rich has a good point........sometimes talking out of the bottom is more clear than the top.....:)


Top
 Profile Personal album  
 
fytrplt
PostPosted: Mon Jun 18, 2012 9:28 pm 
Hero Member
Hero Member
User avatar

Joined: Tue Oct 20, 2009 8:07 pm
Posts: 1140
Images: 2
Location: Lakeland, Florida, USA
I used to lose ATC after passing the station with my top mounted antenna. Probably blanked by the tail sufaces. No problem in air or ground with the bottom mounted unit. You DO need to be mindful when crawling under to clean the belly, however.

My xpondr ant is located under the pax seat near the center. I have had some isssues with ATC when low and in close. Gear fairings block signal. Recommend placing it farther back and to one side.

_________________
Bob Highley
N711SH
SN 835
KLAL


Top
 Profile Personal album  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron

[ Time : 0.139s | 12 Queries | GZIP : On ]