R44

 Raven II                         Clipper II
EngineLycoming IO-540, six cylinder, fuel injectedLycoming IO-54O, six cylinder, fuel injected
HorsepowerDerated to 245 for takeoff and 205 continuousDerated to 245 for takeoff and 205 continuous
Maximum Gross Weight2500 lb (1134 kg)2500 lb (1134 kg)
Approximate Empty Weight (including oil & standard avionics)1505 lb (683 kg)1570 lb (712 kg)
Standard Fuel (29.5 gal)177 lb (80 kg)177 lb (80 kg)
Auxiliary Fuel (17.0 gal)102 lb (46 kg)102 lb (46 kg)
Pilot, Passengers, and Baggage (with standard fuel)818 lb (371 kg)753 lb (342 kg)
Cruise Speed at Maximum Gross Weightup to 109 kts (202 km/h)up to 106 kts (196 km/h)
Maximum Range (no reserve)approx 300 nm (550 km)approx 300 nm (550 km)
Hover Ceiling IGE8950 ft @ 2500 lb8950 ft @ 2500 lb
Hover Ceiling OGE7500 ft @ 2300 lb7500 ft @ 2300 lb
Rate of Climbover 1000 fpmover 1000 fpm
Maximum Operating Altitude14,000 ft14,000 ft
Electrical System28 volt28 volt