[1] It was a streamlined single-seat cantilever monoplane and had two metal floats attached underneath the fuselage on inverted vee-struts.

[1] The aircraft was ready for testing by May 1929 but due to delays with the engine it did not fly and the French government withdrew the team from the 1929 race.

[1] Originally designed to produce 1,000 hp (746 kW) the Mistral never achieved the required power output and the H.V.40 did not fly until July 1931.

[1] The first flight was from Lake Berre the base of the French team for the 1931 race.

[1] Data from [1]The Illustrated Encyclopedia of AircraftGeneral characteristics Performance Related development