Czech motorglider
The TeST TST-7 Junior is a Czech shoulder-wing, single-seat motor glider that was designed and produced by TeST of Brno. When it was available the aircraft was supplied as plans, in kit form for amateur construction or as a complete ready-to-fly aircraft. Production is now complete and the aircraft is no longer available new.
Design and development.
The TST-7 Junior was a development of the TST-1 Alpine self-launching sailplane, with a design goal of producing an aircraft more suited for use as a touring motor glider with docile handling.
The TST-7 is built from wood, with some fibreglass parts. The span, shoulder-mounted, slightly forward-swept wing employs a Wortmann FX 61-184 airfoil and has top-surface air brakes. The landing gear is of tricycle configuration, making ground handling the aircraft much easier than the monowheel gear used on the TST-1. The standard engine was initially the custom-built M 125 of and later the Rotax 447 of . The aircraft can accept engines of . The cabin width is .
The aircraft was supplied as a "standard kit" rated at 400 hours for completion and that did not include the powerplant. An "Express-Build" kit was also available that could be completed in 250 hours. The factory also built some TST-7s as ready-to-fly models that were US$16,250 in 1998 with the M 125 engine and US$17,540 in 2000 with the Rotax powerplant. The plans cost US$350 in 2000.
Specifications (TST-7 Junior).
"Data from" Purdy and KitplanesGeneral characteristics* Crew: one* Airfoil: Wortmann FX 61-184* Propellers: 2-bladed feathering
Performance* Endurance: * Maximum glide ratio: 
References.
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