Quote:
Originally Posted by makman94
Speaking about the UZO,
does anyone know if the vertical line of uzo was highlighted (to green or to whatever color) during night ?
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If we look over
British report on U-570.
For Attack Periscope - nothing about.
For Observation Periscope:
Quote:
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The graticule is illuminated by luminous material carried in glass tubes around the edge of the graticule. The illumination begins to show on the graticule after about 12 seconds application of the eye to the eyepiece in the dark, and after about 3 minutes the divisions can be distinguished. The numbers cannot be read.
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For UZO:
Quote:
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A graticule is provided in the right limb. It consists of a vertical line which gradually thickens from the centre to the outside of the field. The line is provided with night illumination by a self-luminous placed in a compartment to the right of the graticule. There is an external lever which controls the illumination from "hell" (Bright" to "dunkel" (Dark). In the bright position the illumination is visible after 2 to 3 minutes' observation in the dark and plainly visible after 10 minutes. In the dark position it is just cut out completely.
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