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Douglas Observation Bi-Planes
Douglas Observation Bi-Planes 
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Conceptually similar
Workers in Front of an Observation Biplane
Workers in Front of an Observation Biplane 
Douglas O-2 Framework
Douglas O-2 Framework 
Douglas O-2 Observation Biplane Framework
Douglas O-2 Observation Biplane Framework 
Douglas O-2C Observation Plane
Douglas O-2C Observation Plane 
Douglas Mail Planes in Factory
Douglas Mail Planes in Factory 
Douglas O-25B on Tarmac
Douglas O-25B on Tarmac 
Douglas O-25 Observation Biplane on Ground
Douglas O-25 Observation Biplane on Ground 
Douglas O-22 Observation Biplane on Ground
Douglas O-22 Observation Biplane on Ground 
Cloudster Assembly
Cloudster Assembly 
Man on the Tail of a DC-7 in the Factory
Man on the Tail of a DC-7 in the Factory 
Douglas O-29 Biplane
Douglas O-29 Biplane 
XB-19 Behemoth in Factory
XB-19 Behemoth in Factory 
Douglas Aircraft Worker in Wheel Well of a DC-3
Douglas Aircraft Worker in Wheel Well of a DC-3 
Douglas O-22 Observation Biplane on Ground
Douglas O-22 Observation Biplane on Ground 
Douglas A-20G Assembly, Santa Monica
Douglas A-20G Assembly, Santa Monica 
Douglas O-2 Flight Line in Field
Douglas O-2 Flight Line in Field 
Outer Wing Rivetter, Douglas A-20
Outer Wing Rivetter, Douglas A-20 
Number 301 DC-2 on Factory Floor
Number 301 DC-2 on Factory Floor 
Douglas O-7 Observation Biplane
Douglas O-7 Observation Biplane 
Douglas O-2 Observation Biplane on Ground
Douglas O-2 Observation Biplane on Ground 
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Douglas O-25A in Factory

Douglas built its first experimental observation aircraft in 1923 and delivered 45 production-version O-2s in 1924. On February 16, 1925, a contract was signed with the Army for 75 more, the largest single contract the company had received up to that time. More than 250 O-2s were built in 11 versions over a five-year period. These models were so different from one another that is surprising the Army retained the O-2 designation. What all the O-2s had in common were welded steel-tube fuselages, fabric-covered wooden wings and the bulky but durable World War I Liberty engine. Like any aircraft produced in large numbers over a span of years, later O-2 variants incorporated many design improvements. Some O-2s had more streamlined fuselages and two-bladed metal propellers instead of the previous wooden ones. Others were modified as basic trainers by the addition of flight controls and instruments in the rear cockpit. The Douglas O series of observation biplanes were among the most important American military aircraft produced during the 1920s and early 1930s. They saw service with the U.S. Army, Navy, Marine Corps, National Guard units and even the U.S. Coast Guard. Between 1923 and 1936, Douglas produced a total of 879 biplanes in O series including 770 for the U.S. military services, 108 to foreign air forces and one as a civil aircraft. 
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Unique identifier BI2352 
Boeing ID sm2069 
Type Image 
Size 5998px × 4792px   27MB 
License type RM 
Keywords
1920s
adults
airplanes
biplanes
day
factories
factory workers
full body views
fuselages
grid patterns
ground shots
historic production status
interiors
male
manufacturing
military
military observation aircraft
occupations and work
perspective lines
photos
structural systems
two people
working together
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