Boeing XPBB-1 Sea Ranger

1^st Flight 1942

The Boeing XPBB-1 Sea Ranger (Boeing 344) was a prototype twin-engine flying boat patrol bomber built for the United States Navy.

The order for this aircraft was cancelled, to free production capacity up, to build the Boeing B-29, and only a single prototype was completed.

Specifications

Crew

10

Length

94 ft 9 in (28.89 m)

Wingspan

139 ft 8.5 in (42.59 m)

Height

34 ft 2 in (10.42 m)

Wing area

1,826 sq ft (169.7 m2)

Empty weight

41,531 lb (18,878 kg)

Gross weight

62,006 lb (28,185 kg)

Max take-off weight

101,130 lb (45,968 kg)

Powerplant

2 × Wright R-3350-8 radial engines, 2,300 hp (1,716 kW) each

Performance

Maximum speed

186 kn (214 mph, 345 km/h) at sea level

Range

5,500 nmi (6,300 mi, 10,000 km) (maximum)

Normal range

3,691 nmi, (4,245 mi, 6,834 km)

Service ceiling

22,400 ft (6,830 m)

Rate of climb

980 ft/min (4.98 m/s)

Wing loading

34.0 lb/sq ft (166 kg/m2)

Power/mass

0.15 hp/lb (0.24 kW/kg)

Armament

Guns

8 × .50 in (12.7 mm) machine guns in bow and tail turrets and waist positions

Bombs

20,000 lb (9,100 kg).