The Schweizer Aircraft Corporation, located in Horseheads, NY, was incorporated in 1939 by three Schweizer brothers , who built their first glider in 1930. Primarily a manufacturer of sailplanes and helicopters, Schweizer is now a diversified aerospace company. Currently the oldest privately-owned aircraft company in the United States, Schweizer signed an agreement in August 2004 to be acquired by Sikorsky Aircraft Corporation of Stratford, Connecticut.