Robinson R44 raven II

General characteristics

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

Performance

* Maximum speed: 130 kn (240 km/h; 150 mph)
* Cruise speed: 110 kn (200 km/h; 130 mph)
* Range: 300 nmi (560 km; 350 mi)
* 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.