Engineering Division XCO-6 explained

The Engineering Division XCO-6 was an American two-seat observation biplane designed by the United States Army Engineering Division, only two were built and the type did not enter production.

Design and development

Two prototypes of the XCO-6 were built powered by a 4200NaN0 inverted air-cooled V-1410 engine. One was tested at McCook Field and subsequently modified but no others were built.

Variants

XCO-6

Prototype two-seat single-engined observation biplane.

XCO-6A

Proposed variant with the main fuel tanks moved into the upper wing, not built.

XCO-6B

A XCO-6 modified with a change of engine to a 4350NaN0 Liberty 12A engine.

XCO-6C

XCO-6B modified with a larger propeller and changes to the landing gear.

References

Bibliography

• Book: Andrade, John . U.S. Military Aircraft Designations and Serials since 1909 . 1979 . Midland Counties Publications . Hinckley, Leicestershire, UK . 0-904597-22-9 . 171.
• Book: Official Performance Test of Engineering Division XCO-6 Equipped with "12" Cylinder Inverted Liberty Engine . Engineering Division, Air Service . 1925 . Government Printing Office . Washington, DC . 2018-05-22 . 2018-05-22 . https://web.archive.org/web/20180522181917/https://aurora.auburn.edu/bitstream/handle/11200/48651/asic521_ocr.pdf?sequence=1&isAllowed=y . dead .

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