Comparison of AgustaWestland AW139 and Kaman K-Max

Attribute	AgustaWestland AW139 ×	Kaman K-Max ×
General
Manufacturer	AgustaWestland	Kaman Aerospace
Model	AgustaWestland AW139	Kaman K-Max
Country	United Kingdom	United States
Manufactured from (year)	2001	1996
Type	Large Helicopters	Mid Size Helicopters
Icao	A139	KMAX
Performance
Engine	2x Pratt & Whitney Canada PT6C-67C	1x 1 × Honeywell T53-17 turboshaft
Power, hp (hp)	1,531	1,800
Avionics	Autopilot 4 axis, Honeywell digital avionics	-
Max cruise speed (km/h)	309	185
Travel range (km)	1,061	556
Fuel economy (km/l)	0.514	0.656
Service ceiling (m)	6,096	4,572
Rate of climb (m/sec)	10.87	12.7
Weights
Max take off weight (kg)	6,400	5,443
Max payload (kg)	2,778	3,109
Fuel tank capacity (l)	2,086	867
Baggage volume (m³)	3	-
Dimensions
Seats	15	1
Cabin height (m)	1.42	1.3
Cabin width (m)	2.08	1
Cabin length (m)	2.7	2
Exterior length (m)	16.66	15.8
Tail height (m)	4.98	4
Fuselage diameter (m)	2.1	1.1
Wing span (m)	13.8	14.7
Wing tips	No Winglets	No Winglets