AVIATION HISTORY FRIDAY
13 March 1977 – first flight of Sikorsky S-76
On 13 March 1977, the prototype of the Sikorsky S-76 medium-size utility rotorcraft performed its first flight. The development of the S-76 helicopter began in the mid-1970s and, initially, the rotorcraft was known as the S-74. However, over time its [...]