Douglas Y1B-7 - Specifications (Y1B-7)

Specifications (Y1B-7)

Data from McDonnell Douglas Aircraft since 1920

General characteristics

• Crew: 4
• Length: 45 ft 11 in (14.00 m)
• Wingspan: 65 ft 0 in (19.81 m)
• Height: 11 ft 7 in (3.53 m)
• Wing area: 621.2 ft² (57.71 m²)
• Empty weight: 5,519 lb (2,509 kg)
• Loaded weight: 9,953 lb (4,524 kg)
• Max. takeoff weight: 11,177 lb (5,080 kg)
• Powerplant: 2 × Curtiss V-1570-53 "Conqueror" liquid-cooled V12 engines, 675 hp (504 kW) each

Performance

• Maximum speed: 182 mph (158 knots, 293 km/h) at sea level
• Cruise speed: 158 mph (137 knots, 254 km/h)
• Range: 411 mi (357 nmi, 662 km)
• Ferry range: 632 mi (550 nmi, 1,018 km)
• Service ceiling: 20,400 ft (6,200 m)
  
• Climb to 10,000 ft (3,050 m): 8.7 minutes

Armament

• Guns: 2 × .30 in (7.62 mm) machine guns
• Bombs: 1,200 lb (544 kg) bombs carried beneath fuselage