Sikorsky S-300
 The Sikorsky S-300 (formerly Hughes 300 and Schweizer 300) family of light utility helicopters was originally produced by Hughes Helicopters as a development of the Hughes 269. Later manufactured by Schweizer Aircraft the basic design has been in production for almost 50 years. The single three-bladed main rotor and piston-powered S-300 is mostly used as a cost-effective platform for training and agriculture.