Παναγιώτη απο το wiki που έψαξα βρήκα τα εξής.......
Λοιπόν σου παραθέτω τα εξής στοιχεία..(Δν ξέρω αν τα είδες..αν ναι τοτε Σόρρυ!!!)
Β-29......

Crew: 11 (5 officers, 6 enlisted): Airplane Commander, Pilot, flight engineer (a rated pilot),[59][60] bombardier, navigator, radio operator, radar operator, four gunners
Length: 99 ft 0 in
(30.18 m) Wingspan: 141 ft 3 in
(43.06 m) Height: 29 ft 7 in
(8.5 m) Wing area: 1,736 sq ft
(161.3 m²) Aspect ratio: 11.50
Empty weight: 74,500 lb (33,800 kg)
Loaded weight: 120,000 lb (54,000 kg)
Max takeoff weight: 133,500 lb (60,560 kg) ; 135,000 lb plus combat load
Powerplant: 4 × Wright R-3350-23 and 23A turbosupercharged radial engines, 2,200 hp (1,640 kW) each
Zero-lift drag coefficient: 0.0241
Drag area: 41.16 ft² (3.82 m²)
Τυ-4.......

Crew: 11
Length: 30.18 m (99 ft)
Wingspan: 43.05 m (141 ft)
Height: 8.46 m (27 ft)
Wing area: 161.7 m² (1,743 ft²)
Empty weight: 35,270 kg (77,594 lb)
Loaded weight: 46,700 kg (102,950 lb)
Max takeoff weight: 65,000 kg (143,000 lb)
Powerplant: 4 × Shvetsov ASh-73TK radial engines, 1,790 kW (2,400 hp) each
Τώρα αν αυτα δν είναι ίδια...δες τι βρήκα απο ένα site...
During world war two, three American B-29 Superfortress bombers landed on separate occasions in the Russian city of Vladivostok, unable to return to their home base because of battle damage or mechanical problems. The Russians, who weren't officially at war with Japan, interned the aircraft and their crews, who were later allowed to "escape" back to their own forces. The aircraft remained in Russia and Stalin ordered the Tupolev design bureau to reverse engineer them, resulting in the Tupolev Tu-4 which you see here, which was assigned the NATO code name "Bull". About 1200 Tu-4s were built, some of which were supplied to China which used them until the late 1960s.
Και το site...
http://www.richard-seaman.com/Aircraft/Museums/Monino/Highlights/index.html