Henschel Hs-129 B3

The Henschel Hs-129 B3 was a specialized "tank buster" variant of the German Luftwaffe's ground-attack aircraft, primarily used on the Eastern Front during 1944 and 1945. It was designed to combat heavy Soviet armor using a massive 75mm BK 7.5 cannon. 
 
Key Deployment Details: 
Eastern Front: This was the main theater for the B-3 variant, where it acted as a rapid-reaction force against Soviet armor, particularly in the later stages of the war.
Armament: Unlike other variants, the B-3 was specifically fitted with the 75mm BK 7.5 cannon, which was a modified tank gun (from the Panzer IV) to destroy heavily armored targets.
Operational Period: While the earlier B-1 and B-2 models were used in Tunisia (1943) and earlier in the East, the B-3 appeared later, with limited production through 1944.
Role: The aircraft served as a Tank Breaker, focusing on low-level close-air support. 
 
Due to the limited numbers produced and the late stage of the war, the Hs-129 B3 saw action exclusively in the closing, desperate battles against advancing Soviet forces.