A High angle view showing various US Air Force (USAF) aircraft parked on the tarmac at Sheppard Air Force Base (AFB) Texas (TX). The aircraft are used for training future crew chiefs, which is a large part of the mission at Sheppard AFB. Pictured are USAF C-141 Starlifter aircraft; KC-135 Stratotanker aircraft; EC-135 Looking Glass aircraft; C-130 Hercules aircraft; A-10 Thunderbolt II aircraft, F-111 Aardvark aircraft; F-15 Eagle aircraft; and a F-16 Fighting Falcon aircraft