| 摘要 |
A device for direction of the attitudes of especially an air vehicle is described. A navigation equipment, designating the current attitudes of a vehicle in an earth-related coordinate system is understood. The device comprises a source of light such as a laser (6), furthermore a first direction means (7, 14) directing a light beam (4) forward according to a reference direction, and a second direction means (9, 10, 14) which directs a light beam (5) in a direction given by the navigation equipment (11). The device is so arranged that the operator can see in line with the reference direction (4) and the direction given by the navigation equipment (11) and thereby obtain steering information. The first and second direction means can be combined (14). |
