Boeing B-29 Superfortress vs. Boeing 747-400ERF

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Boeing B-29 Superfortress versus Boeing 747-400ERF
30.17 m 99 ft 0 in length 70.67 m 232 ft 0 in
9.02 m 29 ft 7 in height 19.33 m 63 ft 5 in
43.06 m 141 ft 3 in wingspan 64.44 m 211 ft 5 in
4 Wright R-3350s engines 4 x Pratt & Whitney PW4056 turbofan engines
2,200 hp thrust per engine Approximately 56,750 lbf
8,800 hp total thrust Approximately 227,000 lbf
63,502 kg 140,000 lb MTOW 412,769 kg 910,000 lb
3,700 mi 3,219 nm range 7,260 km 3,920 nm
220 mph 354 km/h cruise speed 933 km/h 580 mph
20,000 lbs (9,100 kg) bomb load capacity
rotor diameter
rate of climb
Please note that these values are indicative and actual values can vary based on specific engine models and configurations.