Sikorsky is an American aircraft manufacturer best known for military and civil helicopters. Igor Sikorsky established the enterprise in 1923, initially to build fixed-wing aircraft. Its later helicopter work became central to the business, which Lockheed Martin acquired in November 2015.[1][2]
Fixed-wing beginnings and helicopter experiments
Sikorsky Aero Engineering began near Roosevelt Field on Long Island, where a small team developed the S-29A. The founder subsequently returned to his longstanding interest in helicopters. The VS-300 made its first tethered flight in September 1939 and underwent extensive changes as the team investigated flight-control problems. Successive configurations experimented with different auxiliary rotors before settling on a main rotor with full cyclic control and a separate anti-torque tail rotor. This research provided experience for the two-person aircraft developed as the R-4.[1][3]
Production and Connecticut facilities
A production contract for the R-4 led to organisational changes in 1943, when the combined Vought-Sikorsky business separated. Sikorsky Aircraft moved to Bridgeport while Vought remained at the Stratford site. In 1956 Sikorsky established its headquarters at a larger North Main Street facility in Stratford. Igor Sikorsky retired the following year but continued as a consultant. The sequence of factories reflects the transition from experimental rotorcraft to a manufacturer supporting series production, engineering and maintenance-related activities across several locations.[2]
Military and commercial product families
Sikorsky's later military products included the Black Hawk and Seahawk families and the CH-53 heavy-lift line. Its commercial portfolio included the S-76 and S-92, providing aircraft for different passenger and utility markets. These families combined airframe manufacture with development, systems integration and support obligations. Lockheed Martin's acquisition brought Sikorsky into its rotary and mission-systems business, adding substantial civil and military helicopter activity to the group. Customer support and training remain associated with the operation as aircraft continue through long service lives.[4][5]