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B-29 Superfortress vs M-4 Bison

B-29 Superfortress vs M-4 Bison at a glance — top speed 575 vs 947 km/h, range 5,230 vs 5,600 km, max takeoff weight 60,555 vs 181,500 kg, built 3,970 vs 123 units.

Boeing B-29 Superfortress bombers side profile drawing
🇺🇸 B-29 SuperfortressFull specs
Myasishchev M-4 Bison bombers side profile drawing
🇷🇺 M-4 BisonFull specs
Specifications
B-29 Superfortress M-4 Bison
Origin country 🇺🇸 United States 🇷🇺 Ex-USSR
Category Bombers Bombers
Manufacturer Boeing Myasishchev
First flight 21 September 1942 20 January 1953
Year introduced 1943 1953
Number produced 3970 units 123 units
Average unit price $640K $8 million
Wing area 161.3 m² 326.4 m²
Wingspan 43.1 m 50.5 m
Height 8.5 m 14.1 m
Length 30.2 m 47.2 m
Maximum speed 575 km/h 947 km/h
Operational range 5,230 km 5,600 km
Service ceiling 9,710 m 11,000 m
Max. takeoff weight 60,555 kg 181,500 kg
Empty weight 33,793 kg 79,700 kg
Total thrust 4 x 1,640 kW 4 x 9,525 kgf
Performance Radar Chart
Explore further
M-4 Bison side profile drawing M-4 Bison Specs, operators & history →
Former operators · 123 built
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Frequently Asked Questions

Which is faster, the B-29 Superfortress or M-4 Bison?
The M-4 Bison is faster with a maximum speed of 947 km/h compared to the B-29 Superfortress's 575 km/h, a difference of 372 km/h.
Which has longer range, the B-29 Superfortress or M-4 Bison?
The M-4 Bison has a longer range at 5,600 km compared to the B-29 Superfortress's 5,230 km.
Which can fly higher, the B-29 Superfortress or M-4 Bison?
The M-4 Bison has a higher service ceiling at 11,000 meters (36,089 ft) compared to the B-29 Superfortress's 9,710 meters (31,856 ft).
Which is heavier, the B-29 Superfortress or M-4 Bison?
The M-4 Bison has a higher maximum takeoff weight at 181,500 kg compared to the B-29 Superfortress's 60,555 kg.
Which is larger, the B-29 Superfortress or M-4 Bison?
The M-4 Bison is longer at 47.2 meters compared to the B-29 Superfortress's 30.2 meters.
Which is more expensive, the B-29 Superfortress or M-4 Bison?
The M-4 Bison is more expensive at approximately $8.0 million per unit compared to the B-29 Superfortress at $0.6 million.
Which entered service first, the B-29 Superfortress or M-4 Bison?
The B-29 Superfortress entered service first in 1943, 10 years before the M-4 Bison which entered service in 1953.
Which has been built in greater numbers, the B-29 Superfortress or M-4 Bison?
The B-29 Superfortress has been produced in greater numbers with 3,970 units compared to 123 units of the M-4 Bison.