CH-46 - The CH-46 Sea Knight is a medium lift tandem rotor transport helicopter, used by the US Marine Corps. Its mission is to provide all-weather, day or night assault transport of combat troops, supplies and equipment. Known as the "Phrog" is has served in all combat and peacetime environments since its introduction in the 1960's. Starting in 2006 the CH-46 Squadrons are being replaced by the MV022 Ospreys. The charms is a sterling silver CH-46 and is inscribed with CH-46 on the bottom.