Piper L-4 Grasshopper vs. Yakovlev Yak-11

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Piper L-4 Grasshopper versus Yakovlev Yak-11
6.86 m 22 ft 5 in length 8.50 m 27 ft 11 in
2.03 m 6 ft 8 in height 3.38 m 11 ft 1 in
10.72 m 35 ft 2 in wingspan 9.3 m 30 ft 6 in
1 x Continental O-170-3 piston engine engines 1 x Shvetsov ASh-21 radial engine
Approximately 65 hp thrust per engine Approximately 700 hp
Approximately 65 hp total thrust Approximately 700 hp
1,220 lb 553 kg MTOW 2,160 kg 4,762 lb
306 km 165 nm range 800 km 432 nm
65 mph 105 km/h cruise speed 315 km/h 196 mph
Pilot and observer capacity Pilot and one passenger
rotor diameter
rate of climb
Please note that these values are indicative and actual values can vary based on specific engine models and configurations.