Hispano-Suiza 12Z
…at 900 m (3,000 ft) for the 12Y-45. Small prototype runs started in 1939, and were fitted to the French Air Force's front-line fighter aircraft, the M.S.410 and D.520, creating the M.S.450 and D.524 respectively. Production of the main model, the 12Zter, was still not ready at the time of the armistice when…