Cessna O-1 Bird Dog vs. Piper L-4 Grasshopper

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Cessna O-1 Bird Dog versus Piper L-4 Grasshopper
7.85 m 25 ft 9 in length 6.86 m 22 ft 5 in
2.22 m 7 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 × Continental O-470-11 flat six piston engines 1 x Continental O-170-3 piston engine
213 hp (159 kW) thrust per engine Approximately 65 hp
213 hp (159 kW) total thrust Approximately 65 hp
2,400 lb 1,089 kg MTOW 1,220 lb 553 kg
852 km 460 nm range 306 km 165 nm
104 mph 167 km/h cruise speed 65 mph 105 km/h
2 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.