YP-49

 

The YB49 is the jet decendent of the B36. Only three were ever built. All three were scrapped. The reason remain a bit of a mystery to this day.

 

Crew: 6
Length: 53 ft 1 in (16.18 m)
Wingspan: 172 ft 0 in (52.43 m)
Height: 15 ft 2 in (4.62 m)
Wing area: 4,000 sq ft (370 m2)
Aspect ratio: 7.2
Airfoil: root: NACA 653-019; tip: NACA 653-018
Empty weight: 88,442 lb (40,117 kg)
Gross weight: 133,569 lb (60,586 kg)
Max takeoff weight: 193,938 lb (87,969 kg)
Powerplant: 8 × Allison J35-A-15 turbojet engines, 4,000 lbf (18 kN) thrust each
(6x 5,000 lbf (22,241.11 N) Allison J35-A-19 engines on YRB-49)
Performance

Maximum speed: 493 mph (793 km/h, 428 kn)
Cruise speed: 365 mph (587 km/h, 317 kn)
Range: 9,978 mi (16,058 km, 8,671 nmi) maximum[20]
Combat range: 1,615 mi (2,599 km, 1,403 nmi) with 10,000 lb (4,536 kg) bombload
Service ceiling: 45,700 ft (13,900 m)
Rate of climb: 3,785 ft/min (19.23 m/s)
Wing loading: 33 lb/sq ft (160 kg/m2)
Thrust/weight: 0.23