The UB-4 is designed for setting gun elevation angles during indirect fire.
It is mounted on the breech piece.It is mounted on the breech piece.
The elevation level is used for armored vehicles, self-propelled assault guns and field artillery weapons
Main specifications
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| Elevation angles setting range, ° |
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-18 ÷ +48 |
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| Accuracy of elevation angles setting, mins |
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±4 |
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| Level vial scale division value, mins |
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4±0.5 |
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| Ring scale (fine setting dials) division value, mins±20sec |
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3.6 |
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| Scale division on the case (coarse setting scales), º ±12 mins |
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6 |
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| Weight, kg |
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0.9 |
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| Overall dimensions, mm |
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110х75х63 |
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