• Source: Curtiss B-2 Condor

      • The Curtiss B-2 Condor was a 1920s United States bomber aircraft. It was a descendant of the Martin NBS-1, which was built by the Curtiss Aeroplane and Motor Company for the Glenn L. Martin Company. There were a few differences, such as stronger materials and different engines, but they were relatively minor.


      Development


      The B-2 was a large fabric-covered biplane aircraft. Its two engines sat in nacelles between the wings, flanking the fuselage. It had a twin set of rudders with twin horizontal stabilizers, a configuration which was becoming obsolete by that time. At the rear of each nacelle was a gunner position. In previous planes, the back-facing gunners had been in the fuselage, but their view there was obstructed. A similar arrangement (using nacelle-mounted gun platforms) was adopted in the competing Keystone XB-1 aircraft.
      The XB-2 competed for a United States Army Air Corps production contract with the similar Keystone XB-1, Sikorsky S-37, and Fokker XLB-2. The other three were immediately ruled out, but the Army board appointed to make the contracts was strongly supportive of the smaller Keystone XLB-6, which cost a third as much as the B-2. Furthermore, the B-2 was large for the time and difficult to fit into existing hangars. However, the superior performance of the XB-2 soon wrought a policy change, and in 1928 a production run of 12 was ordered.
      One modified B-2, dubbed the B-2A, featured dual controls for both the pilot and the copilot. Previously, the control wheel and the pitch controls could only be handled by one person at a time. This "dual control" setup became standard on all bombers by the 1930s. There was no production line for the B-2A. The B-2 design was also used as a transport.
      The B-2 was quickly made obsolete by technological advances of the 1930s, and served only briefly with the Army Air Corps, being removed from service by 1934. Following production of the B-2, Curtiss Aircraft left the bomber business, and concentrated on the Hawk series of pursuit aircraft in the 1930s.


      Variants


      Model 52
      Company designation of the B-2.
      XB-2
      Prototype.
      B-2
      Twin-engined heavy bomber biplane. Initial production version; 12 built.
      B-2A
      Redesignation of one B-2 fitted with dual controls.
      Model 53 Condor 18
      Civil version of the B-2. Six built.


      Military operators


      United States
      US Army Air Corps
      7th Bombardment Group, Rockwell Field, California
      11th Bomb Squadron - operated 1928-1931


      Specifications (B-2)


      Data from Curtiss aircraft : 1907-1947General characteristics
      Crew: 5
      Length: 47 ft 4 in (14.43 m)
      Wingspan: 90 ft 0 in (27.43 m)
      Airfoil: root: Curtiss C-72; tip: Curtiss C-72
      Empty weight: 9,300 lb (4,218 kg)
      Gross weight: 16,951 lb (7,689 kg)
      Powerplant: 2 × Curtiss GV-1570-7 Conqueror V-12 water-cooled piston engine, 600 hp (450 kW) each
      Performance

      Maximum speed: 132 mph (212 km/h, 115 kn)
      Cruise speed: 105.5 mph (169.8 km/h, 91.7 kn)
      Range: 805 mi (1,296 km, 700 nmi)
      Service ceiling: 17,100 ft (5,200 m)
      Rate of climb: 850 ft/min (4.3 m/s)
      Armament

      Guns: 6x 0.30 in (7.62 mm) Lewis machine-guns
      Bombs: 2,508 lb (1,138 kg) of bombs.


      See also



      Related development

      Martin NBS-1
      Aircraft of comparable role, configuration, and era

      Fokker XLB-2
      Huff-Daland XB-1
      Huff-Daland XHB-1
      Keystone LB-7
      Sikorsky S-37

      Related lists

      List of military aircraft of the United States
      List of bomber aircraft


      References




      Bibliography


      Bowers, Peter M. Curtiss Aircraft 1907-1947. London: Putnam & Company, 1979. ISBN 0-370-10029-8.


      External links



      Curtis B-2 Condor page of Joe Baugher, part of his Encyclopedia of American Aircraft
      USAF Museum article on B-2
      "New Flying Battleship". Modern Mechanix. October 1927. Archived from the original on 2016-03-12. Retrieved 2016-03-11.

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