The piston powered helicopter series draws its legacy from the 269 series. The 269 series helicopter was originally designed with four major objectives in mind: performance, versatility, safety and cost effectiveness. Since its inception, the product has been continuously improved with new technology and design innovation. Now, more than 50 years and more than 3,700 helicopters later, the S-300CTM and S-300CBiTM helicopters are regarded as among the world's finest piston-powered helicopters.