May 14, 2024 Back in the BUFF: Innovative training effort brings B-52 veteran back into the cockpit An innovative effort to improve training for B-52 Formal Training Unit students brought a former pilot on his first sortie in 28 years. The Formal Training Unit is led by the 93rd Bomb Squadron, an Air Force Reserve unit. They work in conjunction with active-duty partners in the 11th Bomb Squadron.