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Keystone LB-6 ✕ Tupolev ANT-7 ✕
Manufacturer Keystone Aircraft Corporation Tupolev
Description The Keystone LB-6 and LB-7 were 1920s American light bombers, built by the Keystone Aircraft company for the United States Army Air Corps, called Panther by the company, but adoption of the name was rejected by the U.S. The Tupolev ANT-7, known by the VVS as the Tupolev R-6 ( R – razvedchik – reconnaissance), was a reconnaissance aircraft and escort fighter of the Soviet Union.
First Flight 1927-01-01 1929-10-20
Entry Into service 1929-01-01
Production End 1934-01-01
Service End 1934-01-01 1941-01-01
Designer Keystone Aircraft Corporation TsAGI
Type Biplane light bomber Experimental aircraft
Length (m) 15.01 15.06
Height (m) 5.5
Max Speed (km/h) 183 230
Cruise Speed (km/h) 153
Max Ceiling (m) 3550 5620
Rate of Climb (m/s) 180 2.7
Armament 2 × trainable .303 in (7.7 mm) Lewis guns in open position in nose; 2 × trainable .303 in (7.7 mm) Lewis guns in open dorsal position; 1 × trainable .303 in (7.7 mm) Lewis gun in ventral hatch; 2,000 lb (910 kg) Bombs 5 × 7.62 mm DA-2 machine guns
Number Built 17 411
Powerplant Description 2 × Wright Cyclone R-1750-1 radial engines, 391 kW (524 hp) each 2 × Mikulin M-17F V-12 water-cooled piston engines, 540 kW (724 hp) each
Primary Users United States Army Air Corps VVS, Aeroflot , Avia Arktika
Status Retired
Wikipedia Article (URL) en.wikipedia.org/wiki/Keystone_LB-6 en.wikipedia.org/wiki/Tupolev_ANT-7
Flat Wing Span (m) 23 23.2
Flat Wing Area (m²) 106.38 80
Number of Engines 2 2