The current variant, the S10-VT, has a variable-pitch propeller which allows more power during take off, and a new turbocharged Bombardier Rotax 914F engine in place of the earlier Limbach L2400.

[1] First seen at the 1996 Berlin Air Show, the S15 variant has a span reduced to 20.0 m (65 ft 7 in) and has two underwing hardpoints for scientific or surveillance sensor pods.

Atmospheric measurements were made with S10 VT during the Mountain Wave Project (MWP) Expedition Argentina'99 1,550 km (963 mi) record flight to Tierra del Fuego[2] and during Expedition Mendoza 2006, when scientific measurements of atmospheric turbulence were made up to 12,500 m (41,010 ft) around and over the highest mountain of the Americas, Aconcagua.

[3] An S10 was flown by Klaus Ohlmann as a pure glider for a record distance of 2,463 km (1,530 mi) , in a 14-hour flight.

In December 2017, the Colombian Air Force received two Stemme S10 VTs for training purposes.