Boeing 747-400ERF vs. Kaman K-MAX

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Boeing 747-400ERF versus Kaman K-MAX
70.67 m 232 ft 0 in length 15.85 m 52.0 ft
19.33 m 63 ft 5 in height 4.10 m 13.5 ft
64.44 m 211 ft 5 in wingspan
4 x Pratt & Whitney PW4056 turbofan engines engines 1 x Honeywell T53-17 turboshaft engines
Approximately 56,750 lbf thrust per engine 1,600 hp
Approximately 227,000 lbf total thrust 1,600 hp
412,769 kg 910,000 lb MTOW 2,721 kg 6,000 lb
7,260 km 3,920 nm range 370 km 200 nm
933 km/h 580 mph cruise speed 185 km/h 115 mph
capacity 4.1
rotor diameter 13.2 m 43 ft 4 in
rate of climb 6.7 m/s 1,318 ft/min
Please note that these values are indicative and actual values can vary based on specific engine models and configurations.