Ellehammer semi-biplane

Jacob Ellehammer built the aircraft based on his monoplane design of the previous year.

Like that aircraft, it featured a large, triangular wing, with a motor (of Ellehammer's own design and construction) mounted beneath it.

Unlike his monoplane, however, the semi-biplane's main wing formed a constant, unbroken span.

A replica of the aircraft was constructed in 1966 by Arvid Ligaard Sørensen, powered by a Citroën 2CV engine and donated to the Danmarks Flymuseum.

Tests with the replica showed difficulties in transmitting engine power to the propeller and while this aircraft could taxi, it proved impossible to coax from the ground.