MCMURDO STATION, Antarctica--Master Sgt. Geoff Cerrone, a loadmaster assigned to the 139th Airlift Squadron, part of the 109th Airlift Wing, prepares a LC-130 Hercules for departure at McMurdo Station, Antarctica. The 109th Airlift Wing flies the only ski-equipped LC-130s in the world and supports the National Science Foundation research efforts in Antarctica every year.