North American BT-9 vs. Piper L-4 Grasshopper

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North American BT-9 versus Piper L-4 Grasshopper
8.79 m 28 ft 10 in length 6.86 m 22 ft 5 in
2.82 m 9 ft 3 in height 2.03 m 6 ft 8 in
10.97 m 36 ft wingspan 10.72 m 35 ft 2 in
1 x Wright R-975-3 radial engine engines 1 x Continental O-170-3 piston engine
Approximately 440 hp thrust per engine Approximately 65 hp
Approximately 440 hp total thrust Approximately 65 hp
4,300 lb 1,950 kg MTOW 1,220 lb 553 kg
917 km 495 nm range 306 km 165 nm
150 mph 241 km/h cruise speed 65 mph 105 km/h
Pilot and one passenger capacity Pilot and observer
rotor diameter
rate of climb
Please note that these values are indicative and actual values can vary based on specific engine models and configurations.