NVS 6
MANUAL
Procedure | Inspection method | Technical requirements |
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| IPS), the |
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| tube screens shall |
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| illuminate and, after dioptric |
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| adjustment of |
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| the eyepieces (Ref. Step |
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| 6.2.20) and focusing of the |
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| lenses (Ref. Step 7.4), |
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| nearby objects shall be |
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| clearly seen in the unit field |
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| of view. |
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4 Quality of | The check is | The unit shall provide for |
image viewed by | conducted by the pilot | distinct identification of the |
unit | in the course of | test pattern lines in all four |
| individual adjustment | directions and easy reading |
| of the | of the check text, which is |
| goggles (Ref. Step | indicative of the fact that |
| 6.2.21) | the unit is ready for use. |
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9 TROUBLE SHOOTING
9.1Normal operation of the NVS 6 is substantiated by the following indications:
(a)Feasibility of observing the illumination of the screens (without flashes and twinkling) of each of the two
(b)Clear visibility of nearby objects and the test pattern lines in the course of preflight preparation.
9.2All these signs are indicative of the adequate operational status of the NVS 6 for ensuring its normal functioning.
9.3The list of the most frequent and probable troubles of the NVS 6 is given in Table 4.
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