Guinea Bissau DQL-5 Type 65 Compass

The Type 65 compass is a simple surveying instrument used to determine azimuth, distance, horizontal alignment, slope (pitch angle), elevation, march time, speed, and to produce basic maps. To facilitate nighttime use, luminous paint is applied to its various components.

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Guinea BissauMilitary compass

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Product Description

Two types of graduations are marked on the compass dial base; the outer circle is 360 The degree-minute division system, with each graduation line representing 1 degree.

The inner circle is 6000( Mil angular unit ) Division system, with the circumference fully刻. 300 Graduation line, with each graduation line representing 20( Mil angular unit )。

It contains a magnetic needle and a protractor. The graduation unit for the elevation angle is degrees, with each division representing 2.5 Degree, with a measurable pitch angle of ± 60 degree.

Mileage segmentation exists. 1:50,000 ， 1:100,000 Two scale values. 1:100,000 Each graduation on the scale corresponds to 1 kilometers, 1:50,000 Each tick mark corresponds to 0.5 Kilometer.

Speed-time schedule segmentation : On the outer dial there is 13、15、17、19、21、23、25 kilometer / Hours, with a subdial on the inner dial 10、14、16、18、20、22、24、30 kilometer / hour ( With V representative ) , a total of fifteen speeds.

Each tick on the time scale represents five minutes. (V25 for 10 minute )。

The instrument features a surveying scale on its side, with distance estimators at both ends. The distance between the two tips of the estimator is 12.3 millimeters; the distance between the sight and the front sight is 123 Millimeters, that is, the length of the tip. 10 times.

Instrument external dimensions (length × width × height): 69 times 63 times 28.5 （ mm )

Instrument weight: 0.117kg

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