Col. John Marks "became the only pilot to reach 7,000 hours in the A-10C Thunderbolt II." He retired on August 23, 2024, in a ceremony held in the 5-Bay maintenance hangar on Whiteman Air Force ...

Col. John “Karl” Marks set a record that is unlikely ever to be surpassed, as the A-10 nears its divestiture from the U.S. Air Force’s fleet. Lt. Col. John “Karl” Marks has officially ...