XCO-6
Role	Observation biplane Type of aircraft
National origin	United States
Manufacturer	Engineering Division
Primary user	United States Army Air Service
Number built	2

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.^[1]

Design and development

Two prototypes of the XCO-6 were built powered by a 420 hp (313 kW) inverted air-cooled V-1410 engine.^[1] One was tested at McCook Field and subsequently modified but no others were built.^[1]

Variants

XCO-6

Prototype two-seat single-engined observation biplane.^[1]

XCO-6A

Proposed variant with the main fuel tanks moved into the upper wing, not built.^[1]

XCO-6B

A XCO-6 modified with a change of engine to a 435 hp (324 kW) Liberty 12A engine.^[1]

XCO-6C

XCO-6B modified with a larger propeller and changes to the landing gear.^[1]

Specifications (XCO-6)

Data from ^[2]

General characteristics

• Crew: 2
• Length: 29 ft 8 in (9.04 m)
• Wingspan: 48 ft 0 in (14.63 m)
• Powerplant: 1 × Liberty V-1410 V-12 water-cooled piston engine, 420 hp (310 kW)

Performance