Grunt Humor Adjacent — 2 museum-grade prints that set the mood. The Sukhoi Su-25 Grach — known in NATO reporting as Frogfoot — first flew on 22 February 1975 and entered front-line regimental service in 1981 as a dedicated subsonic attack aircraft built around direct ground-force support in the pilot's line of sight. Titanium armor around the cockpit bathtub, redundant control runs, and short-field capability let Frogfoot crews operate from austere strips near the front, while the GSh-30-2 twin 30 mm cannon and wing pylons for S-25 rockets, Kh-25 missiles, and general-purpose bombs defined its tank-plinking and battlefield interdiction role across Soviet, Russian, and export service. The Fairchild Republic A-10 Thunderbolt II entered service in the 1970s as a dedicated tank-killer and forward-air-support platform, built around the seven-barrel GAU-8 Avenger 30 mm cannon — still the heaviest automatic cannon ever mounted on an aircraft. The A-10C modernization added digital glass cockpit and precision-guided munitions such as GBU-38 JDAM while preserving the Warthog's titanium-armoured bathtub cockpit and straight-wing slow-speed agility.