On Monday, May 15, 2017 at 5:09:53 PM UTC-7, son_of_flubber wrote:
On Monday, May 15, 2017 at 2:42:14 PM UTC-4, Darryl Ramm wrote:

I'm also not clear why you are specifically worried about 10,000'.

Because 'Class E 10,000-18,000' is the only airspace, where I plan to fly, where I would need the 'glider exemption' to legally use TABS.

https://generalaviationnews.com/wp-c.../AC_90-114.jpg

I'm narrowing my focus to the issues/regs that affect me. I'm not planning on flying in airspace where a glider would be be required to have something more than TABS.

I kinda see why you are asking but the exact things you are saying are not quite correct, and I don't want to argue semantics but I just want to be clear about there are just no carriage/use regulations that control this use of TABS devices.

As you know, your glider is not required to have ADS-B Out because of the glider exemption. If you however voluntarily decide to install a TABS device in the glider there is nothing that kicks in for you at 10,000. Just nothing relevant at all about 10,000'. In fact there is no regulation that exists at all concerning TABS installation, carriage or use, and certainly nothing magic about 10,000' once you voluntarily decide to install that TABS device. And in no situation does a TABS device meet any of the 2020 mandate requirements, not for non-exempt aircraft, or dealing with those corner cases of exempt aircraft like gliders. All the magic of what TABS will do for you come from the TSO-C199 specs of the devices.