Schweizer S333
The Schweizer 330 and S333 are turbine-powered developments of the Schweizer 300 light piston-powered helicopter. As of 2007, only the Schweizer 333 remains in production. In February 2009, the 333 was rebranded as the Sikorsky S-333. In 2018 the Schweizer R.S.G. bought the Schweizer Aircraft from Sikorsky Aircraft and it was rebranded as Schweizer S333 again. Development Schweizer 330 In 1987, Schweizer announced development of the Schweizer 330 using the dynamic components, rotors, controls and systems of the 300C; however, it was redesigned with an all-new fuselage. The first 330, converted from a 300C and powered by an Allison 250-C10A, flew on June 14, 1988. The FAA certified the aircraft in September 1992. The improved 330SP was introduced in May 1997 and featured an improved rotor and raised skids, which could be retrofitted to previous 330 models. An Allison (later Rolls-Royce) 250-C20W turboshaft was derated to 165 kW (220 hp), giving the 330SP excellent hot and high performance, maintaining power output to 18,000 feet. Schweizer 333 Shortly after the release of the 330, Schweizer began work on upgrading the dynamic components of the Schweizer 330SP. Over two years later, Schweizer released a new variant, the Schweizer 333. Featuring the newly