contract contained a nine-year period of performance through FY2004, and a production run continuing through FY2017. Concurrent with the contract award, Raytheon Aircraft Company (RAC) was also provided the GBTS Request for Contract Change Proposal (CCP). Raytheon Aircraft Company has since been acquired by Onex, a Canadian private equity fund. It was designated under the 1962 United States Tri-Service aircraft designation system, skipping some numbers use the same designation as the older North American T-6 Texan which, while also used under the post-1962 system, had been originally designated in an older system. Contenders The seven main Contenders included: Beech-Pilatus PC-9 Mk 2, which won the competition; produced as the T-6 Texan II Cessna 526 CitationJet Lockheed T-Bird II, partnered with Aermachhi based on the Aermacchi MB-339 Northrop Super Tucano EMB-312H – an improved EMB-312 Tucano with uprated engine and other improvements. Grumman S.211A a modified SIAI Marchetti S.211. Rockwell Ranger 2000 based on the RFB Fantrainer. Vought Pampa 2000 – a modified FMA IA 63 References Notes Bibliography External links USN T-6A factsheet Military aircraft procurement programs of the United States