The TST-14 Bonus is a two seat all composite glider available as a pure glider or as a self launcher utilizing a Rotax 503 engine. The glider is a 17m class aircraft with glide performance of 40:1. More detailed performance specifications, the performance polar and type specifications are available. For detailed description of the gliders, its systems and operation, see the Aircraft Manual. If interested in more detailed photos of the construction process, click here. The TST-14 can be registered as a S-LSA Glider or as an experimental glider.