Gnome-Rhône 9K

The Gnome-Rhône 9K Mistral was a nine-cylinder 550 hp (405 kW) to 700 hp air-cooled radial engine, that started life as an enlarged Gnome-Rhône 7K with two extra cylinders.

Design and development
The Gnome-Rhône 7K itself was an enlarged version of the Gnome-Rhône 5K which was derived from a licensed version of the Bristol Titan. A redesign of the cylinders is indicated by the K suffix. The 9K was followed by the larger and more powerful 14-cylinder twin row Gnome-Rhône 14K.

The 9K was license produced by Hungarian company Weiss Manfréd Repülogép- és Motorgyár Rt. (WM Rt, the aircraft engine factory of Manfred Weiss). The 9K was also produced in the Soviet Union as the M-75 at GAZ-29 in Zaporozhye. Only small numbers were built and it was dropped in favor of the M-25 a version of the Wright Cyclone and the M-85 a version of the Gnome-Rhône 14K Mistral Major.

Variants

 * 9K:
 * 9Kbr:
 * 9Kdr:
 * 9Kdrs:
 * 9Kers:
 * 9Kfr:


 * I.A.R. 9KIc40:Licence production in Romania by Industria Aeronautică Română (IAR).

Applications

 * Breguet Calcutta
 * IAR-15
 * Loire 70
 * Morane-Saulnier M.S.225
 * SNCAC NC.510
 * Wibault 313
 * Wibault 365