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uAvionix Tailbeacon Install

Karl
 Karl
Trusted Member

I installed my Tailbeacon today.  It is a high quality product from what I can see and the kit included everything you would need to include screws, allen wrench, and even a placard for your instrument panel. Everything went very smoothly with one small exception.  I thought this might help those who haven't installed theirs yet.

 uAvionix provides you with a mounting plate and two screws to secure that plate to the tail of the airplane. The screws fit flush in the mounting plate as the plate is beveled where the screw heads sit and keep the screw heads at or below the level of the mounting plate.  In my case, the original screws that held the tail lamp onto the rudder were slightly larger in diameter than the screws that uAvionix provided with their kit. Consequently the provided screws didn't anchor to the rivnuts on my rudder.  I didn't think it was a big deal as we used the original airplane screws.  However, the screws were larger and so was the flange where the bit goes so they would not sit flush with the mounting plate. This 16th of an inch difference prevented the Tailbeacon from mounting onto the plate.  We had to get a drill to expand the recesses in the mounting plate so that my aircraft screws would sit flush on the plate.  Once we did that, the Tailbeacon mounted very smoothly and we could finish the installation.

I don't know how common this is but I wanted to pass this along just in case anyone else had this issue.

Karl A VogelheimS108-3 N596C

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Topic starter Posted : 31/12/2019 7:28 pm
Rick_Stinson
(@rick_stinson)
New Member
Posted by: @prmetime

I installed my Tailbeacon today.  It is a high quality product from what I can see and the kit included everything you would need to include screws, allen wrench, and even a placard for your instrument panel. Everything went very smoothly with one small exception.  I thought this might help those who haven't installed theirs yet.

 uAvionix provides you with a mounting plate and two screws to secure that plate to the tail of the airplane. The screws fit flush in the mounting plate as the plate is beveled where the screw heads sit and keep the screw heads at or below the level of the mounting plate.  In my case, the original screws that held the tail lamp onto the rudder were slightly larger in diameter than the screws that uAvionix provided with their kit. Consequently the provided screws didn't anchor to the rivnuts on my rudder.  I didn't think it was a big deal as we used the original airplane screws.  However, the screws were larger and so was the flange where the bit goes so they would not sit flush with the mounting plate. This 16th of an inch difference prevented the Tailbeacon from mounting onto the plate.  We had to get a drill to expand the recesses in the mounting plate so that my aircraft screws would sit flush on the plate.  Once we did that, the Tailbeacon mounted very smoothly and we could finish the installation.

I don't know how common this is but I wanted to pass this along just in case anyone else had this issue.

Howdy Karl,

 

I am familiar with the "TailBeacon" and will be installing one on my (1/3rd owned) Citabria.  I noticed the same thing with the mounting kit provided.  It appears that one could install 4-40 nut plates on the current tail fixture of my Dash-2 and just use a countersunk  "metal" screw that matches the mounting plate, and of course, there's no ground wire so maybe one should beadded.

I have been told that many of the older transponders don't work well with either the tail mounted or left wing mounted uAvionics ADSB units because the power output on most of the older transponders is too low.

The KT-78A was rated at 110w (peak) and the newer Garmins are somewhere north of 300w peak. 

A local Avionics shop told me they don't install either the wingtip or tail mounted uAvionics units because they've had problems with them working with the existing transponders. (I've also been told by more than one local A/I that the shop doesn't make much on labor those units and that's the REAL reason!

Which transponder do you have and does it work ok??  I have a Bendix/King KT-78A in my Stinson.  (The Citabria has an AT-150)

My A/I told me he'll sign off any thing I want to put in.

 

Hope all is ok with you

Cheers,

Rick

 

 

 

 

 

 

1947 108-2 Franklin 6A-335B 180 + HartzellNo animals were injured flying my Stinson except those I ran over intentionally!

ReplyQuote
Posted : 22/03/2020 8:36 pm
Casey McCain McCain
(@hookdowngmail-com)
New Member

I had the same experience. My solution was to file the top of the screw heads just a smidge until they fit. Easy. 

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Posted : 01/11/2020 4:47 am
Karl
 Karl
Trusted Member

Rick,

   I currently have a King KT-76A but I hope to switch over to a Terra Transponder which will allow me to add another Comm and the Transponder in the same space as my existing transponder.  I don't anticipate any problems with the Transponder output or my Tailbeacon once this is complete.

Karl A VogelheimS108-3 N596C

ReplyQuote
Topic starter Posted : 01/11/2021 1:43 pm
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