Lockheed C-69 Constellation vs. Kaman K-MAX

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Lockheed C-69 Constellation versus Kaman K-MAX
29.72 m 97 ft 6 in length 15.85 m 52.0 ft
6.02 m 19 ft 9 in height 4.10 m 13.5 ft
37.49 m 123 ft wingspan
4 x Wright R-3350 Duplex-Cyclone radial engines engines 1 x Honeywell T53-17 turboshaft engines
2,200 to 3,700 horsepower (1,640 to 2,760 kW) thrust per engine 1,600 hp
8,800 to 14,800 horsepower total thrust 1,600 hp
44,453 kg 98,000 lb MTOW 2,721 kg 6,000 lb
5,200 km 2,808 nm range 370 km 200 nm
507 km/h 315 mph cruise speed 185 km/h 115 mph
Up to 109 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.