The IAR 80 aircraft, a Polish fighter variant, but with much better performance, was produced by Industria Aeronautica Romania. It was Romania's best fighter aircraft of World War II.
The IAR 80 aircraft and its predecessor had similar nose and tail sections, but the mid section of the aircraft differed. Perhaps the most noticeable difference was the much more modern bubble-type canopy of the aircraft.
IAR 80 aircraft are probably best known for their defense of the Romanian Ploesti oil fields. On June 10, 1944 forty-six aircraft from the 82nd Fighter Group armed with 1,000 lb. bombs escorted by forty-eight more aircraft of the First Fighter Group attacked Ploesti on a low level raid.
About 56 IAR 80 aircraft intercepted the enemy aircraft. In the short period of combat that followed, a total of 23 enemy aircraft were downed with a loss of five IAR 80 aircraft. The combat took place at low altitude in a tight valley which gave the IAR 80 aircraft the advantage. They had far less success against high altitude raids.
A total of about 250 IAR 80 aircraft were produced. Of those, a little over 100 were still active at the end of World War II. A number of IAR 80 aircraft were converted to two seat training aircraft which served the Romania Air Force until 1952.