[1] TeST introduced the TST-13 single seat motor glider in 2005 as an all-composite replacement for their wood and composite TST-9.
The TST-13 shares a similar rear fuselage and tail design and identical wing spars with the all-composite TST-10 single seat sailplane.
The wing tips carry winglets and there are outboard ailerons, two position flaps and upper surface spoilers.
The light aircraft style cockpit has a rear hinged, single piece canopy and is placed ahead of the wing leading edge.
[2] In mid-2010 2 appeared on civil aircraft registers of European countries west of Russia.