|Function||Reconnaissater, light bomber|
|Wing Load (kg/m2)||43.0|
|Power load (kg/hp)||6.6|
|Speed at 0m||170km/h|
Development of the DH-4 British light bomber/reconnaissater. N.N.Polikarpov was steadily working on blueprints for DH-4 assembly lines. During the Civil War some latest DH-9 and DH-9a were captured, and modifications were included into the project. After the War engines were acquired and in 1922 few dozens DH-9 airframes were purchased in Great Britain.
In 1921 one of captured DH-9 was equipped with radiostation, and on September 28 (or 30?) first successful communication between pilot and ground station was established during trials at Moscow experimental airfield.
Gained experience helped to start production of the 'all-Russian' R-1.
|Modified January 2, 1998||Back to|