Robertson R22 Helicopter

General characteristics

 * Crew: 1
 * Length: 28ft 8in (8.7m)
 * Rotor diameter: 25ft 2in (7.7m)
 * Height: 8ft 11in (2.7m)
 * Disc area: 497sq ft (46.2sq m)
 * Empty weight: 796lb (389kg)
 * Loaded weight: 920lb (417kg)
 * Max takeoff weight: 1,370lb (635kg)
 * Powerplant: 1 Lycoming O-320-A2B or -A2C flat 4 piston engine, 124hp (93kW)
 * Main tank total capacity: 19.8 US gallons (75 liters)
 * Main tank usable capacity: 19.2 US gallons (73 liters)
 * Optional aux tank total capacity: 10.9 US gallons (41 liters)
 * Optional aux tank usable capacity: 10.5 US gallons (40 liters)

Performance

 * Never exceed speed: 117mph, 189km/h, 102kts
 * Cruise speed: 110mph, 177km/h, 96kts
 * Range: 240mi (386km)
 * Service ceiling: 14,000ft (4,267m)
 * Rate of climb: 1,200ft/min (6.1m/s)
 * Disc loading: 2.61lb/sq ft (13.7kg/sq m)
 * Power/mass: 0.095hp/lb (0.147kW/kg)
 * Endurance: approx. 2 hours, with 30-minute reserve