| 摘要 |
FIELD: aircraft engineering, control systems. ^ SUBSTANCE: invention relates to control systems incorporated with aircraft. Proposed system comprises chamber (18) directed towards relief valve (10) and graphic display unit (20) for image produced by aforesaid chamber to be displayed. To produce sharp high-contrast image, light from source (22) is directed to said relief valve, thus allowing the pilot to visually control the state of relief valve (10). ^ EFFECT: higher safety in unlocking aircraft doors. ^ 10 cl, 3 dwg |
