Boeing 747-400ER vs. Kaman K-MAX

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Boeing 747-400ER versus Kaman K-MAX
64.44 m 211 ft 4 in length 15.85 m 52.0 ft
19.4 m 63 ft 8 in height 4.10 m 13.5 ft
70.6 m 231 ft 8 in wingspan
4 engines 1 x Honeywell T53-17 turboshaft engines
258 kN (R-R RB211-524 G/H) or 252.4 kN (P&W PW4056) thrust per engine 1,600 hp
1032 kN (R-R RB211-524 G/H) or 1009.6 kN (P&W PW4056) total thrust 1,600 hp
396,895 kg 875,300 lb MTOW 2,721 kg 6,000 lb
14,205 km 7,671 nm range 370 km 200 nm
939 km/h 584 mph cruise speed 185 km/h 115 mph
416 passengers 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.