Schweizer 333: Technical Specifications

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The Model 333 provides:

  • Thirty percent (30%) more useful load than a comparably equipped 330SP
  • Upgraded main rotor system including: blades with cambered airfoil; large diameter, splined hub assembly; oil-filled drive shaft
  • Superior cruise and hover performance in high and hot operating conditions
  • Bottom line value: the most cost-effective turbine helicopter on the market today
  • Unequaled flight stability and outstanding handling characteristics
  • High stance landing gear with improved ground clearance
  • Spacious cabin with superb visibility
  • Reduced pilot fatigue because of: ergonomically designed seats, low control forces, low vibration levels, and low cabin noise levels
  • Broad range of customer services, from spare parts support to maintenance training
  • New standard for safety: forgiving flight characteristics and components with proven reliability reduce the risk of accident; unparalleled energy absorption for crew protection
  • Lowest noise signature of any conventional tail rotor turbine helicopter

Performance

  • VNE(Kias) SeaLevel 120knots 222km/hr
  • Cruise Speed 105 knots 192 km/hr
  • Maximum Endurance 4.1 hrs
  • Maximum Range 310nm 574km

Weight

  • Empty weight 1250 lbs 567 kg
  • Gross weight 2550 lbs 1157 kg
  • Useful load 1300 lbs 590 kg

Rotor System

  • Main rotor diameter 27.51 ft 8.39 m
  • Main rotor disk area 594 sq/ft 55.18 sq/m
  • Main rotor RPM 466 - 471 466 - 471
  • Tail rotor diameter 4.25 ft 1.30 m

Powerplant

  • Rolls-Royce 250-C20W Gas Turbine Engine
  • Maximum takeoff (Derated) 250 shp 186 kw
  • Maximum continuous (Derated) 230 shp 171 kw

Fuel (Turbine Fuel)

  • Usable capacity (73 gal) 493 lbs 224 kg

Weight

  • Empty weight 1250 lbs 567 kg
  • Gross weight 2550 lbs 1157 kg
  • Useful load 1340 lbs 590 kg