Comparison of Robinson R44 and Robinson R66

Attribute	Robinson R66 ×	Robinson R44 ×
General
Manufacturer	Robinson Helicopter	Robinson Helicopter
Model	Robinson R66	Robinson R44
Country	United States	United States
Manufactured from (year)	2011	2002
Type	Light Helicopters	Light Helicopters
Icao	R66	R44
Performance
Engine	1x 1 X Rolls-Royce RR300 turboshaft	1x Lycoming IO-540-AE1A5 6 cylinder
Power, hp (hp)	270	245
Avionics	-	Garmin GTN 650 GPS/COM/NAV, Garmin GMA 350Hc Audio Panel
Max cruise speed (km/h)	209	204
Travel range (km)	741	644
Fuel economy (km/l)	3.263	3.483
Service ceiling (m)	4,267	4,267
Rate of climb (m/sec)	5.08	5.08
Weights
Max take off weight (kg)	1,361	1,134
Max payload (kg)	588	451
Fuel tank capacity (l)	279	185
Baggage volume (m³)	0.5	1
Dimensions
Seats	5	4
Cabin height (m)	1.31	1.2
Cabin width (m)	1.21	1.22
Cabin length (m)	-	1.8
Exterior length (m)	12.57	11.66
Tail height (m)	3.48	3
Fuselage diameter (m)	1.37	1.28
Wing span (m)	10.06	10.1
Wing tips	No Winglets	No Winglets