Led by demand for new airplanes, orders for U.S.-made durable goods increased 5.5% in May, the biggest increase since March 2004, the Commerce Department said Friday. Economists were expecting orders to rise 1.8%. Economists were expecting a big increase in aircraft orders after Boeing Co reported orders soared to 200 in May from 14 in April. Excluding transportation, durable goods orders were down 0.2% in May. Durable orders in April were revised to a 1.4% increase from 1.9% previously estimated. Orders for nondefense capital goods excluding aircraft fell 2.3% in May after a 1.7% gain in April. This is the biggest decline since October. Shipments in this sector rose 0.2% after a 1.4% rise in April.