EnginesTwo different jet engines are being developed for the F-35

Two different jet engines are being developed for the F-35; the Pratt & Whitney F135 and the General Electric/Rolls-Royce F136. The STOVL versions of both powerplants use the innovative Rolls-Royce LiftSystem, patented by Lockheed Martin and built by Rolls-Royce. This system is more like the Russian Yak-141 and German VJ 101D/E than the preceding generation of STOVL designs, such as the Harrier Jump Jet.The LiftSystem is composed of a lift fan, driveshaft, clutch, 2 roll posts and a "3 Bearing Swivel Module" (3BSM). The 3BSM is a thrust vectoring nozzle which allows the main engine exhaust to be deflected downward at the tail of the aircraft. The lift fan near the front of the aircraft provides a counter-balancing thrust. Somewhat like a vertically mounted turboprop within the forward fuselage, the lift fan is powered by the engine's low-pressure (LP) turbine via a driveshaft and gearbox. Roll control during slow flight is achieved by diverting pressurized air from the LP turbine through wing mounted thrust nozzles called Roll Posts.

Pacific Airlines

Pacific Airlines has lately announced its plan to suspend flights between Ho chi minh city to Da lat and Buon Me Thuot cities from August 2008 due to the oil price rise.The airline said that flights will resume when the situation gets better. Customers who have booked tickets will receive a refund and compensation (VND 50,000 each).Other routes of Pacific Airlines are still operational as usual including three new routes to be opened on June 1 from Hanoi to Danang Hue and Nha trang Pacific Airlines will be rebranding as Jetstar Pacific Airlines as of May 23 and operational under the name of Jetstar Pacific and Jetstar trademark.