Douglas O-38 Explained

The Douglas O-38 was an observation airplane used by the United States Army Air Corps.

Between 1931 and 1934, Douglas built 156 O-38s for the Air Corps, eight of which were O-38Fs. Some were still in service at the time of the Pearl Harbor Attack in 1941.

The O-38 is a modernized derivative of the O-25, itself a re-engined variant of the earlier Douglas O-2.

Variants

O-38: derivative of the Curtiss Conqueror-engined O-25 but with a 525-hp (391-kW) Pratt & Whitney R-1690-3 radial engine and Townend ring cowling; the National Guard received all 44 production aircraft
  • O-38A: single unarmed O-38 staff liaison machine for the National Guard
  • O-38B: derivative of the O-38 with an R-1690-5 engine; total production was 63, comprising 30 for USAAC observation squadrons and 33 for the National Guard
  • O-38C: single aircraft similar to the O-38B for use by US Coast Guard
  • O-38E: model with a wider and deeper fuselage on the lines of the private-venture O-38S, with a sliding canopy over the cockpits and a 625-hp (466-kW) R-1690-13 radial engine driving a metal propeller; could be operated on twin Edo floats; the National Guard took delivery of 37 such aircraft
  • O-38F: eight unarmed staff liaison aircraft delivered to the National Guard in 1933 with an R-1690-9 engine and a revised, fully enclosed canopy
  • O-38P: Almost identical to the E/F series. Six aircraft delivered to Perú in February 1933, fitted with Edo floats; Three took part in the conflict against Colombia, and took part in air combats against Colombian Curtiss Hawk IIs, one being lost as consequence of damage received during those clashes. Survivors were converted to wheels, and served as trainers until 1940.
  • O-38S: private-venture development of the O-38 with a wider and deeper fuselage, crew canopy and a smooth-cowled 575hp Wright R-1820-E Cyclone radial engine; in effect was the prototype of the O-38E
  • A-6: proposed use of the O-38 as a radio-controlled target drone (cancelled)
  • Operators

    Haiti
    Peru

    Surviving aircraft

    Further reading

    External links

    Notes and References

    1. Web site: Douglas O-38F . National Museum of the United States Air Force (NMUSAF) . 7 April 2015 . 15 August 2017.
    2. Miller . Ed Mack . February 1969 . Operation O-38: A Salvage Adventure in Alaska's 'Deep Freeze' . Air Force and Space Digest . 52 . 2 . 56–60 . 11 July 2022.
    3. Informational film playing in museum to accompany display