The French Air Force aircraft engine series Hispano-Suiza V-12's last two models were used mainly around what war(s)?
Hispano-Suiza 12Z The 12Z, designated Type 89 by the company, was the final evolution of the series of Hispano-Suiza V-12 aircraft engines. The Z model had just entered production when France fell to the Germans during World War II. A small number were produced during the war but the German occupation government would not allow full-scale production to start. After the war small numbers were built to equip new designs, but the rapid introduction of the jet engine ended further development.
Fairey Battle The Fairey Battle was a British single-engine light bomber designed and manufactured by the Fairey Aviation Company. It was developed during the mid-1930s for the Royal Air Force (RAF) as a monoplane successor to the earlier Hawker Hart and Hind biplanes. The Battle was powered by the same high-performance Rolls-Royce Merlin piston engine that powered various contemporary British fighters. However the Battle was weighed down with a three-man crew and a bomb load. Despite being a great improvement on the aircraft that preceded it, by the time it saw action the Battle was relatively slow, limited in terms of range and was quickly found to be highly vulnerable to both anti-aircraft fire and hostile fighters, possessing only two defensive .303 in machine guns.