The LFU 205 is a single-engined, four-seat, low-wing monoplane, that was built in the late 1960s entirely from glass reinforced plastic.

The Leichflugtechnik-Union (LFU) was a consortium formed by the Bölkow, Pützer [de] and Rhein-Flugzeugbau companies specifically to produce an aircraft built entirely of glass reinforced plastic (GRP).

[1] The LFU 205 is a single-engined, low-winged monoplane of conventional appearance apart from slight, 7° forward sweep on the moderately tapered wing.

It has been used in a research program into laminar flow aerofoils by fitting a "glove" of the new profile over the wings of the LFU 205 in the central sections inboard of the ailerons on both sides.

The gloved regions are also instrumented to gain data on pressure and drag distributions and boundary layer behaviour.