| 摘要 |
An aircraft instrument for providing a pictorial display of a vertical plane position of an aircraft, helicopter or other space operated vehicle in flight in relation to radio navigation aids or other selected reference points on the ground or in space. The instrument utilizes a computing device to establish the location of the references with respect to the vehicle in flight and the vertical pictorial display portrays the vehicle as a moving symbol, such as a red dot of light or other indicator means, positioned on a grid in a manner that shows the actual vehicle altitude above or below the reference point, distance of the vehicle from a reference point, and the vertical plane angle which would lead directly to the reference point. |
