the Government of the United Kingdom US$340 million (£180 million), repayable on a royalty basis per aircraft. The UK contribution is part of an investment partnership for the location of the development of the wings, engine nacelles and composite empennage structures at the Belfast plant, where Bombardier bought Short Brothers in 1989. On 31 January 2006, Bombardier announced that market conditions could not justify the launch of the program, and that the company would reorient CSeries project efforts, team and resources to regional jet and turboprop aircraft. A small team of employees were kept to develop the CSeries business plan and were further tasked to include other risk-sharing partners in the program. On 31 January 2007, Bombardier announced that work on the aircraft would continue, with entry into service planned for 2013. In November 2007, Bombardier selected the Pratt & Whitney Geared Turbofan, now the PW1500G, already selected to power the Mitsubishi Regional Jet, to be the exclusive powerplant for the CSeries, rated at . Program launch On 22 February 2008, Bombardier's Board of Directors authorized offering formal sales proposals of the CSeries to airline customers, on the strength of its 20% better fuel burn and up to 15% better cash operating costs compared to similarly sized aircraft produced at the time. This interested Lufthansa, Qatar Airways and ILFC. On 13 July 2008, in a press conference on the eve of the opening of the Farnborough Airshow, Bombardier Aerospace formally launched the CSeries, with a letter of interest from Lufthansa for 60 aircraft, including 30 options, at a US$46.7 million list price. The aircraft fuel efficiency would be per passenger in a dense seating. The final assembly of the aircraft would be done in Mirabel, wings would be developed and manufactured in Belfast and the aft fuselage and cockpit would be manufactured in Saint-Laurent, Quebec. The center fuselage was to be built by China Aviation Industry Corporation (AVIC)'s affiliate Shenyang Aircraft Corporation. Bombardier estimated the market for the 100- to 149-seat market segment of the CSeries to be 6,300 units over 20 years, representing more than $250 billion revenue over the next 20 years; the company expects to capture up to half of this market. Prototype manufacturing In March 2009, Bombardier redesignated the C110 and C130 as CS100 and CS300, respectively. The models were offered in standard- and extended-range (ER) variants; and additionally, an extra thrust (XT) variant of the