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Page Title:
SBK-11A/A24G-26 Displacement Gyroscope |
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|  MIL-C-38418E(AS)
10,000 hours
e.
DCK-128/A24G Compass System Controller:
10,000 hours
f.
DCK-129/A24G Compass System Controller:
DCK-228/A24G Compass System Controller:
10,000 hours
g.
h.
DCK-234/A24G Compass System Controller:
10,000 hours
10,000 hours
DCK-235/A24G Compass System Controller:
i.
DCK-236/A24G Compass System Controller:
10,000 hours
j.
3.5.3.1 Longevity - the control assembly and components shall each have
an operating life span (equipment longevity as defined in MIL-STD-781) of
not less than 2,000 hours before they consistently fail to meet the MTBF
index. Those components that are subjected to eliability tests and have
individually accumulated 2,000 hours or longer shall not be subjected to
a longevity test.
3.6
SBK-11A/A24G-26 Displacement Gyroscope -
The
displacement
gyroscope, including associated electronics, shall consist of a vertical
and a directional gyro mounted in multiple gimbals as described in the
following paragraphs. This gimbal arrangement is used in order to avoid
a gimbal lock position.
3.6.1 Vertical Gyro - The vertical gyro shall have sufficient angular
momentum and be so designed as to meet the performance specified herein
when operated throughout the temperature, vibration, and acceleration
ranges.
3.6.2 Directional Gyro - The directional gyro shall have sufficient
angular momentum and be of such design as to provide the performance
specified herein when operated throughout the temperature, vibration, and
acceleration ranges.
3.6.3 Gimbal System - The displacement gyroscope configuration shall
consist of a two-axis directional gyro vertically stabilized by a
two-axis vertical gyro.
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