The Douglas C-124 Globemaster II, also fondly called "Old Shakey," could carry more than 200 troops. It had clamshell-type loading doors, built-in double hydraulic ramps and an elevator under the aft fuselage. It could load tanks, field guns, bulldozers and trucks. By 1970, most C-124s were transferred to the Air Force Reserve and the Air National Guard. Although in production for only five years, 448 were built and they had a long and useful service life. The last C-124 was phased out in 1974.