Yakovlev Yak-18 vs. Kaman K-MAX

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Yakovlev Yak-18 versus Kaman K-MAX
8.72 m 28 ft 7 in length 15.85 m 52.0 ft
2.4 m 7 ft 10 in height 4.10 m 13.5 ft
10.16 m 33 ft 4 in wingspan
1 x Ivchenko AI-14RF radial engine engines 1 x Honeywell T53-17 turboshaft engines
Approximately 300 hp thrust per engine 1,600 hp
Approximately 300 hp total thrust 1,600 hp
1,250 kg 2,756 lb MTOW 2,721 kg 6,000 lb
950 km 513 nm range 370 km 200 nm
230 km/h 143 mph cruise speed 185 km/h 115 mph
Pilot and one passenger 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.