Stefan wrote:
I may be wrong, but I think the Stemme V10 is legally not a TMG.

The type category "Touring Motor Glider" does not exist in the US. The
Stemme, Dimona, G109, DG-800, ASK-14, ASW-24E, etc., are all gliders
with self-launch capability. An FAA Glider rating allows you to fly any
of them as PIC. A self-launch endorsement from a CFIG is required if
(and only if) you make use of the self-launch capability.

Marc