Robertson R44 (Raven II)

General characteristics

 * Crew: one or two pilots
 * Capacity: four, including pilot
 * Payload: 900lb (408kg)
 * Length: 21ft 5in (9.0m)
 * Rotor diameter: 33ft (10.1m)
 * Tail rotor diameter: 4ft 10in (1.5m)
 * Height: 10ft 9in (3.3m)
 * Empty weight: 1,450lb (657.7kg)
 * Loaded weight: 2,500lb (1,134kg)
 * Powerplant: 1 Lycoming IO-540-AE1A5 6 cylinder, flat engine with fuel injection, 245bhp (183kW)
 * Fuel: 100 low lead (100LL) fuel or 100/130
 * Main tank capacity: 31.6US gallons (120liters)
 * Main tank usable fuel: 30.6US gallons (116liters)
 * Auxiliary tank capacity: 18.5US gallons (70liters)
 * Auxiliary tank usable fuel: 18.3US gallons (69liters)

Performance

 * Maximum speed: 130kts (240km/h; 150mph)
 * Cruise speed: 110kts (200km/h; 130mph)
 * Range: 300nm (560km; 350mi)
 * Altitude restrictions: 14,000 ft (4,300 m) density altitude or 9,000 ft (2,700 m) above ground level in order to be able to reach ground within 5 minutes in case of fire.