(Right to left) Airman Mark Vadnais and Airman 1st Class Christian mains, 28th Aircraft Maintenance Squadron able chiefs, are taught how to attach a connector to an airflow hose by Staff Sgt. Chris Dieball, 28th AXMS crew chief instructor, at Ellsworth Air Force Base, S.D., Jan. 21. The connector is used to fasten the airflow hose to a B-1B Lancer in order to cool off electrical systems during maintenance. (U.S. Air Force photo/Senior Airman Anthony Sanchelli)