Airplane (7 photos)

In the early 30s engineer Luigi Stipe served in the Italian Air Force proposed the original idea of using the fuselage-pipe to increase the efficiency of the screw. This concept was named «Ala a turbina». Those interested in this idea Air Ministry ordered Italy Stipe build a flying demonstrator. It was decided to build aircraft factory firm Caproni. First flight Stipa, equipped DeHavilland Gipsy III engine with 120 hp, held October 7, 1932. Already during the test aircraft were thrashed - increased elevators and construction of the tail. At the end of testing the aircraft was transferred to the Research Center Montecelio, where he received a registration number MM.187. The aircraft successfully completed these tests, but the results did not meet the military and in 1933 it was dismantled.