Design work began in August 1966, with the first flight taking place in September 1967.
The pilot sat in a recumbent position, and powered a two bladed pusher propeller, located behind a streamlined nacelle.
As originally designed, the tailfins did not incorporate rudders, and directional control was made via two fins located outboard and underneath the wing.
Directional control proved inadequate, and the tailfin area was increased, with rudders being incorporated.
[4] Data from Luftfahrzeugbau in Österreich von den anfängen bis zur gegenwart[4]General characteristics Performance