Image: Wikimedia Commons / Tony Hisgett (Public Domain)
B-29 Superfortress
Designation: B-29
Why it matters
The B-29 Superfortress was the most technologically advanced aircraft of WWII — pressurized cabin, remote-controlled guns, central fire control. It was also the most expensive weapons program of the war, exceeding even the Manhattan Project. The Enola Gay and Bockscar, both B-29s, dropped the atomic bombs that ended WWII. No aircraft has ever carried more historic weight.
Specifications
| Max Speed | 357 mph |
|---|---|
| Range | 5,830 miles |
| Service Ceiling | 31,850 ft |
| Engine | 4x Wright R-3350-23 Duplex Cyclone radials |
| Power/Thrust | 2,200 hp each |
| Wingspan | 141 ft 3 in |
| Length | 99 ft |
| Crew | 11 |
| Production | 3,970 built |
| First Flight | 1942-09-21 |
| Service Dates | 1944-1960 |
Armament
- • 8x .50 cal M2 machine guns in remote turrets
- • 1x 20mm cannon
- • 20,000 lbs bombs
Notable Features
- First pressurized bomber
- Remote-controlled gun turrets
- Central fire control system
- Dropped atomic bombs on Japan
Patina notes
B-29s were technological marvels that required constant maintenance. The R-3350 engines were notorious for catching fire. Surviving examples show the evidence of that complexity — access panels everywhere, maintenance stenciling, the wear of mechanics' hands over decades. The pressurization system required constant attention visible in the careful sealing around every opening.
Preservation reality
Only two B-29s remain airworthy — FIFI and Doc, both operated by the Commemorative Air Force. The R-3350 engines remain challenging to maintain, with cores increasingly scarce. These aircraft require extraordinary resources to keep flying. Every flight is a testament to the dedication of their maintenance crews.
Where to see one
- • National Air and Space Museum (Enola Gay)
- • National Museum of the US Air Force
- • Imperial War Museum Duxford
- • FIFI and Doc on tour
Preservation organizations
- • Commemorative Air Force
- • B-29/B-24 Squadron
Sources
- Boeing B-29 History (2026-02-03)
- National Air and Space Museum (2026-02-03)