Two better than one Published Jan. 15, 2010 GRISSOM AIR RESERVE BASE, Ind., -- Clearing the runway for take-off and landing is vital to completing the Grissom mission. Here contractors, operating rollover snow plows, work together to keep the runway open. Under ideal conditions it takes an estimated six hours to clear the snow from the entire runway. (U.S. Air Force photo/Senior Airman Carl Berry)
