High Quality Content by WIKIPEDIA articles! The Alenia C-27J Spartan is a medium-sized military transport aircraft. The C-27J is an advanced derivative of Alenia Aeronautica`s G.222 (C-27A Spartan in U.S. service), with the engines and systems of the Lockheed Martin C-130J Super Hercules. The aircraft was selected as the Joint Cargo Aircraft (JCA) for the United States military, for which L3 is the prime contractor.