X-Plane 11.50+ Lockheed QT-2PC 1.0. The Lockheed QT-2PC aircraft is a special "quiet" aircraft developed to detect enemy activity at night without being heard or detected. It is a Schweizer 2+32 glider airframe equipped with a muffled piston engine driving a slow turning propeller. Two aircraft entered service in January 1968 at Soc Trang Airfield, flying 591 hours during night operations. Credit goes to Bernard Augras for using his pilot. By Philippe Gastebois.