You can set up the system to use GPS ground speed as your air/ground
determinant.Â* For most flights that would be just fine, but not so with
wave flights when ground speed can decrease to the point where you'd be
reporting on ground while still at altitude.Â* Since I live in an area
where wave flights are not infrequent, I elected to install a pneumatic
switch for that purpose.

On 11/22/2019 6:07 AM, wrote:
On Thursday, November 21, 2019 at 11:15:42 PM UTC-6, Thomas Van de Velde wrote:
Here's how: https://photos.app.goo.gl/KuVwn8tV9iLHkPgx7
Interesting, a TN70 and no squat switch.
It the plane experimental or standard?

--
Dan, 5J