Made of transparent plastic,“Inoue" and “Kent" types are available. 1. Inoue Type: Nautical Triangles, a position finder for the navigator, consisting of a danger-angle triangle (A) and a protractor triangle (B) made of transparent plastic, 36 cm. 2. Kent Type: Two 45o triangles provide an easy method for plotting position and course and doing other chart work. Using protractor scales, the triangle is easily aligned in any direction with a chart meridian. Direction is maintained as one triangle is slid along the other to the desired position. Durable, clear, vinylite. Long side length 30 cm.
航海三角板分為INOUE-TYPE 360mm和KENT-TYPE 300mm,由透明塑料制成,船舶上都配有兩只同規格的航海三角板。根據不同情況,可單獨使用或兩只配合使用。在應用中,航海三角板比平行尺方便、靈活。特別是在量取的方位線或航向線度數,但又與海圖上的羅經花距離較遠時,使用航海三角板量取方位線或航向線的度數就更為方便。具體操作時,用一只三角板的長邊對準所要量取的方位線或航向線,然后與另一只三角板配合,將對準方位線或航向線的長邊平行移到就近的經度線上,使圓弧的中心點與經度線相重合,最后從圓弧刻度尺上讀取方位或航向度數。在這種情況下,使用平行尺,則需要平行移動較遠的距離才能到羅經花上,操作不慎,靜尺容易移位而產生誤差。
| IMPA CODE | DESCRIPTION | UNIT |
| 371007 | TRIANGLE NAUTICAL INOUE-TYPE, 360MM | SET |
| 371008 | TRIANGLE NAUTICAL KENT-TYPE, 300MM | SET |









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