Air Force Col. Stephen R. Gwinn, 103rd Airlift Wing Commander, discusses differences between the C-130H1 and C-130H3 aircraft, June 2, 2021 at Bradley Air National Guard Base, Connecticut. The Connecticut Air National Guard received H3 model C-130s as part of a plan to upgrade the unit's fleet of aircraft. (U.S. Air National Guard photo by Master Sgt. Tamara R. Dabney)