Lt. Col. Aaron Jacob, command surgeon, Army Sustainment Command, boards a National Guard UH-60 Black Hawk helicopter Feb. 28 for a flight to Fort Leonard Wood, Mo., from the helipad at Rock Island Arsenal. Jacob, who arrived at the Arsenal last summer, has been conducting flight physicals for pilots, crew chiefs, air traffic controllers, and those hoping to attend flight school, for personnel at Fort Leonard Wood since December. Jacobs, who previous assignment was at Fort Leonard Wood for 10 years, said this was his third such trip and he usually arrives back two days later. ASC sustains Army and joint forces around the world.