1929  Experimental autogyro built by the Cierva Autogiro Company in association with Avro, using the fuselage of an Avro Avian. After initial tests were done in the conventional configuration, the second cockpit of the Avian fuselage was removed and the undercarriage was replaced by floats used on Avian seaplanes. It was later called Hydrogiro, which would become the first rotorcraft to take off from water in April 1930.  |
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