The fuselage and cockpit are manufactured at another Montreal facility, while the wings are made in Belfast, Northern Ireland. A patented "resin transfer infusion" process is used to make lighter-weight composite wings. The carbon-fiber composite structures require fewer inspections due to better corrosion resistance and fatigue strength, the company said. Bombardier said the plane will have a 15 percent cash operating cost advantage, 20 percent fuel burn advantage and will be significantly quieter. The CSeries will use two of Pratt & Whitney's new geared turbofan engines, the PurePower PW1500G and have a range of 2,950 nautical miles. It is 12,000 pounds (5,400 kg) lighter than other aircraft in the same seat category. BOOK ORDERS The jet is scheduled to enter service in mid-2014 and the company has said it wants 300 firm orders by then. Bombardier said it had 177 firm orders for the planes as of June 4, 2013.