C-21 Learjet – Keesler AFB, Mississippi C-130 Hercules – Little Rock AFB, Arkansas KC-135 Stratotanker – Altus AFB, Oklahoma KC-46 Pegasus – Altus AFB, Oklahoma MC-130 Combat Shadow/Combat Talon II/Commando II and HC-130 Combat King/Combat King II – Kirtland AFB, New Mexico UH-1N Twin Huey – Kirtland AFB, New Mexico HH-60G Pave Hawk – Kirtland AFB, New Mexico CV-22 Osprey – Kirtland AFB, Mexico T-6 Texan II, T-38 Talon and T-1 Jayhawk Pilot Instructor Training (PIT) – Randolph AFB, Texas FTUs not under AETC claimancy are: Air Combat Command A-10 Thunderbolt II E-3 Sentry E-4 NAOC E-8 J-STARS EC-130 Hercules (Compass Call) F-15E Strike Eagle F-22 Raptor OC-135 Open Skies RC-135 Rivet Joint U-2 Dragon Lady MQ-1 Predator MQ-9 Reaper RQ-170 Sentinel Air Force Global Strike Command B-1 Lancer B-2 Spirit B-52 Stratofortress Air Force Special Operations Command AC-130 Spectre, Spooky and Stinger EC-130 (Commando Solo) U-28 Air Mobility Command KC-10 Extender C-20 Gulfstream IV C-21 Learjet VC-25 C-40 Clipper C-32 C-37 Gulfstream V Air University Air University (AU), headquartered at Maxwell AFB, Alabama, conducts professional military education (PME), graduate education and professional continuing education for officers, senior enlisted members and DoD and DAFC civilians throughout their careers. USAF Commissioned Officer Accession & Training Air University also has responsibility for all Air Force officer accession and training other than those officers accessed and commissioned the United States Air Force Academy (USAFA). This is conducted via AU's subordinate activity, the Jeanne M. Holm Center for Officer Accessions and Citizen Development (Holm Center), formerly the Air Force Officer Accession and Training Schools (AFOATS). As an AU activity, the Holm Center oversees both the Air Force Reserve Officer Training Corps (AFROTC), with detachments at numerous colleges and universities across the United States, and the Air Force Officer Training School (OTS) at Maxwell AFB, Alabama. Professional Military Education (PME) and Graduate and Continuing Education Air University's professional military education schools prepare students from the Air Force, its sister services and both NATO and other U.S.-allied nations as they progress through their careers. Emphasis in these programs includes leadership, military doctrine and air power. The three primary PME schools are: Squadron Officer School (SOS), an approximately two-month leadership development program primarily for USAF company grade officers (First Lieutenants (O-2) and Captains (O-3)); attendance is also open to US civil service (primarily DAFC) in grades GS-11 and GS-12 Air Command and Staff College (ACSC), an approximately