For a Standard category glider it was a big pain to install and get the
documentation correct and approved.Â* There's no provision for gliders in
the STC provided for the TN70.Â* It was also very expensive and the WAAS
GPS box is very large, nearly double the size of the TT22 remote box.Â*
Fortunately, there's plenty of room behind the Stemme's panel for the
hardware.Â* I haven't had a "close encounter" since installing a
transponder about 7 years ago.Â* The TN70 install was in Nov 2018, IIRC.

On 5/15/2019 11:17 AM, son_of_flubber wrote:
These anecdotes make me wonder. Has anyone ever installed ADS-B-out or TABS in gliders BEFORE having a near-collision? What were your reasons for taking the plunge?

I know that it is not uncommon to install transponders as a precaution before having a close call, but there seems to be more reluctance to install ADS-B-out and TABS even amongst people have ample disposable income. This is just my impression.

--
Dan, 5J