European jetmaker Airbus and its rival Boeing have warned that orders for jetliners in 2006 will drop by more than half from 2005's record results. "We can't expect to have another record year like last year in terms of orders," Airbus Chief Operating Officer John Leahy said. "The long-term trend line is about 860 to 870 planes per year. ... You're probably looking somewhere in that range." Airbus received an order for 30 jetliners from Indonesia's Adam Air. The order is worth $2.1 billion, based on list prices.