ocr: ARTIFICIAL HORIZON An artificial horizon uses a gyroscope VIEWING to show pilots the angle of roll of WINDOW GIMBAL their aircraft. The gyroscope is MOUNT supported in a gimbal mount. The angular momentum ofthe gyroscope keeps it horizontal, no matter how the aircraft moves. The position indicator tilts with the aircraft, showing the angle ofthe aircraftin relation to the gyroscope. POSITION GYROSCOPE € INDICATOR € +0+ Airplane