Douglas YOA-5
Template:Short description Template:Infobox aircraft
The Douglas YOA-5 was an amphibious aircraft designed for the United States Army Air Corps, based on the Navy's Douglas XP3D.[1] Although a prototype was built, it did not enter production.
Design and development
In November 1932, the U.S. Army ordered the development of an amphibious reconnaissance aircraft/bomber, intended to act as navigation leaders and rescue aircraft for formations of conventional bombers. The resultant aircraft, which was ordered under the bomber designation YB-11, was designed in parallel with the similar but larger Douglas XP3D patrol flying boat for the United States Navy. It was a high-winged monoplane with two Wright R-1820 Cyclone radial engines mounted in individual nacelles above the wing, resembling an enlarged version of the Douglas Dolphin.[2]
Prior to completion, it was redesignated firstly as an observation aircraft YO-44 and then as the YOA-5 'observation amphibian model 5'.[3] It first flew during January 1935, and was delivered to the army during February that year.[2] The concept for which it was designed proved impracticable, and no further production ensued, but the YOA-5 was used to set two world distance records for amphibians, being finally scrapped in December 1943.[4]
Operators
Variants
- YB-11
- An amphibious reconnaissance bomber ordered in 1932 by the US Army Air Corps, powered by 2x Wright R-1820-13 Cyclone radial engines.
- YO-44
- The YB-11 redesignated in the Observation category before completion.
- YOA-5
- Another redesignation to the Observation Amphibian category. One built, given the aforementioned designations at various times in its life. The YOA-5 started life with Wright R-1820-13 Cyclone engines, was re-engined with Template:Cvt Wright YR-1820-45 Cyclone engines for experimental long-range flying, then re-engined again with Template:Cvt Wright R-1820-25 Cyclones.
Specifications (YOA-5)
See also
Related lists
- List of bomber aircraft
- List of military aircraft of the United States
- List of flying boats and floatplanes
References
Bibliography
- Francillon, René. McDonnell Douglas Aircraft since 1920. London:Putnam, 1979. Template:ISBN.
External links
Template:Douglas aircraft Template:USAF bomber aircraft Template:USAAF observation aircraft Template:USAF amphibious aircraft