Hispano-Suiza 14AB

The Hispano-Suiza 14AB, a.k.a. Hispano-Suiza Type 80, was a 14-cylinder twin-row air-cooled radial engine. In 1929 the Hispano-Suiza company bought a license to produce the Wright Whirlwind engine. The technology from that engine was used to produce a number of different radial engines with greater displacements, power, and number of cylinders.

The most significant of this series of engines was the 14AB, which was a very compact design with relatively good performance, and some 2,500 engines were produced. The 14AB suffered from cooling problems, and many aircraft originally designed for the 14AB were redesigned to use the more reliable Gnome-Rhône 14M series of engines or imported Wright and Pratt & Whitney R-1535 engines.

Variants
Data from Lage 2004
 * 14AB-00: Clockwise (CW) rotation, 670 hp at 2,400 rpm at 3,500 m
 * 14AB-01: Counter-clockwise (CCW) rotation version of -00
 * 14AB-02: CW, 680 hp at 2,400 rpm at 3,500 m
 * 14AB-03: CCW version of -02
 * 14AB-10: CW, 725 hp at 2,400 rpm at 3,500 m
 * 14AB-11: CCW version of -10
 * 14AB-12: CW, 745 hp at 2,400 rpm at 700 m
 * 14AB-13: CCW version of -12
 * 14AC:
 * Type 88: A projected 470 hp single row, nine-cylinder development of the 14AB
 * Type 93: A projected 420 hp single row, seven-cylinder development of the 14AC, intended for the Hispano HS-42

Applications

 * Potez 630
 * Breguet 691
 * Zmaj R-1