Korean Air orders 11 Boeing long-haul jets From:AAP June 19, 2013 1:57AM BOEING has announced that Korean Air has agreed to buy five 747-8 jumbo jets and six 777 planes in a deal worth $US3.6 billion ($A3.79 billion) at list prices, adding to an already strong order book at the Paris Air Show. The US aviation giant on Tuesday said the agreement for the long-haul aircraft was not a firm order, adding it would work with the South Korean airline to finalise the deal. It caps a highly successful day for Boeing at the world's largest air show, where the US firm traditionally vies with arch-rival Airbus for supremacy in the number of orders. Earlier Tuesday, Boeing launched the biggest version of its next-generation Dreamliner family with more than 100 orders for the 787-10 plane from five airlines and leasing companies around the world. A 787-10 costs $US290 million at catalogue prices, which would mean the contracts were worth $US29.6 billion, although hard negotiation in the airline industry usually results in big discounts from list prices. Korean Air's decision to buy five 747-8s will be particularly welcome at Boeing, as the modernised version of the popular jumbo jet has not been faring well.