LFU 205

The LFU 205 is an experimental aircraft from the German manufacturer Easy Flugtechnik Union GmbH ( LFU).

History

The LFU ( still referred to initially as Bo 205) 205 was built in the 1960s as a technology platform for the plastic construction of the light aircraft technology - Union ( LFU), an alliance of Bölkow Company, Rhein -Flugzeugbau and Pützer - plastics technology, developed in cooperation with the DLR. For this purpose, the development and construction since 1963 by various ministries was funded by research funds. The preliminary draft was by Herrmann Mylius and was modified by Erich bank to LFU 205. The first flight took 3 April 1968 with Herbert Plasa driving in Laupheim instead. In Hannover 1968, the LFU 205 was designated as the most interesting light aircraft of the Air Show.

The LFU 205 is one of the first airplanes, which also structural components were manufactured in composite design. The applied here hose design was a development of the so-called open corrugated construction, in which an outer smooth skin is bonded to an inner corrugated skin. The shell design is, however, a wet-on -wet process for producing the sandwich skins. Starting from a glass fabric hose with woven plastic tube a covering skin is first laminated fiberglass fabric on this core. This core is placed in the outer female mold, in the above, the outer cover layer was laminated. After closing the outer two-part mold, the plastic tubes are inflated and thus the fabric tube firmly pressed against the outer layers. After curing, the very thin plastic tubes remain in the sandwich.

The process was then applied in the production of a C -160- Transall elevator. The machine was christened on March 16, 1977 its type certificate as a single piece. Mass production was not initiated for reasons of cost and other jobs. Since 1984 it is used as a development vehicle for laminar airfoil sections at DLR in Braunschweig.

Construction

The LFU 205 is a low-wing monoplane made ​​of fiberglass and is powered by a Lycoming I0 -360 engine with 147 kW and a Verstellluftschraube Hartzell HC - C2YK -1B. Both tanks have a capacity of 96 l each, making a maximum flight duration of 3.5 hours is possible.

Specifications