# Vought-Sikorsky XF4u-1 CORSAIR Bu.No.1443 Prototype In February 1938 the US Naval Aeronautical Bureau issued two requests for proposals for twin and single engine fighters. For the single-engine fighter, the Navy requested maximum speed and … Continue reading    XF4u-1 CORSAIR Bu.No.1443 Vought-Sikorsky  Prototype