TSgt. Dave Thomas, 191st Maintenance Squadron, prepares a sling to be used during a training exercise at Selfridge Air National Guard Base, Mich., Aug. 13, 2011. The 191st MXS performed an exercise in which they simulated a KC-135 Stratotanker had damaged nose gear and a crane was needed to move the aircraft to a safe location for repair. (USAF photo by TSgt. Dan Heaton)