Sino Swearingen Aircraft Corp. announced last week it will expand its operations in San Antonio, Texas, building a 220,000-square foot, $20 million manufacturing plant and adding 850 jobs, doubling its workforce. The company is gearing up to start cranking out 100 copies per year of its SJ30-2 business jet, with first delivery expected by the end of this month. As of last November, at the NBAA annual convention, the company said it had over 300 orders for the airplane, totaling $1.5 billion, and no end in sight. "Orders are accelerating into the stratosphere," said company spokesman Gene Comfort. The new plant is expected to ready for operation sometime next year. The seven-seat SJ30-2 will cruise at 560 mph, with a range of 2,500 nm, and burn 95 gph at 45,000 feet, the company says.