The C-12 Huron, a twin turboprop passenger and cargo aircraft, is the military version of the Beachcraft Super King Air. The US Army ordered 60 military passenger-carrying King Air A200s, designated the C-12A, beginning in FY1973. Worldwide deployment began in July 1975, with a total of 380 ordered by US armed forces by the late 1990s. The C-12 aircraft, manufactured by Raytheon Aircraft Company (RAC) (formerly Beech Aircraft Corporation), is a high-performance, T-tail, pressurized, monoplane that accommodates places for a pilot, co-pilot, and passengers. This all-metal, low wing, twin turbo-prop aircraft is powered by two Pratt and Whitney PT6A-41/42/65 turbo prop engines. The Government's C-12 aircraft fleet is similar to the Beech Super King Air 200 & 1900C, which is operated extensively around the world by many private and commercial users. The aircraft provides operational support for military bases, sites, fleet and shore units. The C-12 Huron will continue to be the mainstay of Operation Support Airlift (OSA) through the year 2010.