Grand Wing Servo-Tech Co., Ltd. or GWS is a Taiwanese manufacturer of foam radio controlled aircraft and accessories, including their own line of electric motors, servos, radio systems and gyros. In the United States, the company is known as Grand Wing System with headquarters in City of Industry, California. GWS was founded in 1993 and has quickly risen to become one of the leading manufacturers of RC products with sales in 2004 of more than US$12,000,000.