Specifications - Schweizer Model 333 Light Helicopter, USA

Dimensions
Rotor system	27.51ft (8.39m)
Main rotor disk area	594ft² (55.18m²)
Main rotor RPM	466 - 471
Tail rotor diameter	4.25ft (1.30m)
Weights
Empty weight	1,250lb (567kg)
Gross weight	2,550lb (1,157kg)
Useful load	1,340lb (590kg)
Powerplant
Type	Rolls-Royce 250-C20W Gas Turbine Engine
Maximum takeoff (derated)	250shp (186kW), 280shp (208kW) optional
Maximum continuous (derated)	230shp (171kW)
Turbine fuel capacity	493lb (224kg)
Performance
Typical cruise speed (4,000ft, Kias)	105kts (192km/h)
VNE	120kts (222km/h)
Maximum range 2,000ft, std day (no reserves)	310nm (574km)
Maximum endurance 2,000ft, std day (no reserves)	4.1 hr
Hover Performance
In-ground effect	11,900ft (3,627m)
Out-of ground effect	85,00ft (2,591m)
Operating Ceiling
Pressure altitude	13,000ft (3,904m)