The Bréguet-Dorand "Gyroplane Laboratoire" was built in 1933. It was a coaxial helicopter, contra-rotating. After many ground tests and an accident, it first took flight on 26 June 1935. Within a short time, the aircraft was setting records with pilot Maurice Claisse at the controls. On 14 December 1935, he set a record for closed-circuit flight with a diameter. The next year, on 26 September 1936, Claisse set a height record of . And, finally, on 24 November 1936, he set a flight duration record of one hour, two minutes and 50 seconds over a closed circuit at 44.7 kilometers per hour (27.8 mph). The aircraft was destroyed in 1943 by an Allied airstrike at Villacoublay airport.