Brditschka HB-3 / HB-21
Страна: Австрия
Год: 1971

Single-seat powered sailplane
Brditschka HB-3R single-seat powered sailplane
Brditschka HB-21 two-seat powered sailplane developed from the HB-3
Militky MB-E1 electric-powered aircraft, modified from an Austrian-built HB-3 sailplane
The silent Militky Brditschka MB-E1 during its 9-minute maiden flight on October 21, 1973. Power is provided by a standard Bosch. 10kw electric motor and Varta batteries, giving 13 h.p.
Austria-Krahe single-seat powered sailplane (40 hp TR-II engine)