Douglas DC-7 vs. Kaman K-MAX

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Douglas DC-7 versus Kaman K-MAX
34.00 m 111 ft 6 in length 15.85 m 52.0 ft
8.38 m 27 ft 6 in height 4.10 m 13.5 ft
35.8 m 117 ft 5 in wingspan
4 x Wright R-3350 Duplex-Cyclone radial engines engines 1 x Honeywell T53-17 turboshaft engines
Approximately 3,400 hp per engine thrust per engine 1,600 hp
Approximately 13,600 hp total total thrust 1,600 hp
90,718 kg 200,000 lb MTOW 2,721 kg 6,000 lb
6,250 km 3,375 nm range 370 km 200 nm
507 km/h 315 mph cruise speed 185 km/h 115 mph
Up to 105 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.