When was the American single-engined, single-seat, all-metal fighter and ground-attack aircraft first flew in which design Donovan Reese Berlin was associated?
Don R. Berlin Donovan Reese Berlin (June 13, 1898 – May 17, 1982) was an American military aircraft designer and aircraft industry executive. Among the many designs with which he is associated, are the Curtiss P-36 Hawk, Curtiss P-40 Warhawk and Fisher P-75 Eagle. His name is "synonymous with the development of military aviation". He designed aircraft that were safe, rugged and "a pilot's joy."
Fiat G.50 The Fiat G.50 "Freccia" ("Arrow") was a World War II Italian fighter aircraft. First flown in February 1937, the G.50 was Italy’s first single-seat, all-metal monoplane with an enclosed cockpit and retractable undercarriage to go into production. In early 1938, the "Freccias" served in the "Regia Aeronautica" (the Italian Air Force), and with its expeditionary arm, the "Aviazione Legionaria", in Spain, where they proved to be fast and, as with most Italian designs, very manoeuvrable. However, it had inadequate weaponry (two Breda-SAFAT 12.7-mm machine guns). The Fiat G.50 was also used in small numbers by the Croatian Air Force and 35 were shipped to Finland, where they served with distinction, with an unprecedented kill/loss ratio of 33/1.