Sweizer Helicopters

Schweizer 330 and S333

Kaman SH-2G Super Seasprite


Kaman Helicopters

The Schweizer 330 and S333 are turbine-powered developments of the Schweizer 300 light piston-powered helicopter.

Goto Sikorsky/Kaman Helicopters


The Kaman SH-2G Super Seasprite is an American ship-based helicopter with anti-submarine, anti-surface threat capability, including over-the-horizon targeting. This aircraft extends and increases shipboard sensor and weapon capabilities against several types of enemy threats, including submarines of all types, surface ships, and patrol craft that may be armed with anti-ship missiles. It was originally developed for the United States Navy in 1980s as a reengined version of the older Kaman SH-2 Seasprite.

Operational History

In the 1990s, the Royal Australian Navy (RAN) decided that it needed an intermediate helicopter to operate from the Anzac-class frigates and the planned offshore patrol vessel (OPV); a proposed cooperative project with Malaysia, however, due to its size, the OPV could only operate a small helicopter. In 1997, the Australian Government signed a A$667 million contract with Kaman to purchase 11 upgraded Super Seasprites.[4] By 2005, up to 40 deficiencies in the helicopter had been identified, including the inability to operate in bad weather and low-light conditions, and its failure to meet Australian airworthiness standards.[5] The helicopters were initially restricted to transport duties during good weather before being grounded in May 2006.[

Kaman Helicopters


RoleLight utility and trainer helicopter
ManufacturerSchweizer Aircraft Corporation
Sikorsky Aircraft
First flightJune 14, 1988
StatusActive In production
Primary usersDominican Air Force
Royal Saudi Land Forces
Developed fromSchweizer S300
Developed intoMQ-8 Fire Scout
Sikorsky S-434


Specifications (Sweizer S.333)

General characteristics

  • Crew: 1-2
  • Capacity: 1-3 pax
  • Length: 31 ft 2 in (9.50 m) overall
  • Height: 11 ft 0 in (3.35 m)
  • Empty weight: 1,210 lb (549 kg)
  • Gross weight: 2,460 lb (1,116 kg)
  • Max takeoff weight: 2,550 lb (1,157 kg)
  • Powerplant: 1 × Rolls-Royce M250-C20W turboshaft engine, 235 shp (175 kW)
  • Main rotor diameter: 27 ft 6 in (8.38 m)
  • Main rotor area: 594 sq ft (55.2 m2)
  • Blade section:NACA 0015 modified[15]

Specifications (Sweizer S.333)



  • Cruise speed: 105 kn (121 mph, 194 km/h)
  • Range: 319 nmi (367 mi, 591 km)
  • Rate of climb: 1,380 ft/min (7.0 m/s)


Aircrafttoaal encyclopedia

An air force, also known in some countries as an aerospace force or air army, is in the broadest sense, the national military branch that primarily conducts aerial warfare.