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|  MIL-G-81065A(OS)
4.5.2.2.2 Shock; transportation, storage and handling. The gyro-
pendulum, packaged and packed as specified in Section 5, shall be sub-
jected to the appropriate shock isolation tests specified in Weapons
Requirements WR-11.
4.5.2.3 Acceleration. The gyro-pendulum shall be subjected to the
acceleration magnitudes and directions required by Table IV for three
minutes at room temperature for each condition specified.
4.5.2.4 Temperature
4.5.2.4.1 Temperature, storage. The gyro-pendulum, preserved and
packaged in accordance with 5.2.1, shall be placed in a temperature con-
trolled chamber and subjected to the following temperature cycles:
(a) Heat to plus 140 plus 5 minus 0 degrees F in 2.5 plus
or minus 0.5 hours.
(b) Maintain at plus 140 plus 5 minus 0 degrees F for 4
hours minimum.
(c ) Cool to minus 45 plus 5 minus 5 degrees F in 2.5 plus
or minus 0.5 hours.
(d) Maintain at minus 45 plus O minus 5 degrees F for 4
hours minimum.
(e) Return to room temperature in 2.5 plus or minus 0.5 hours.
.
Repeat this schedule for a minimum of three cycles.
4.5.2.4.2 Temperature, operating. The gyro-pendulum shall be stabi-
lized at a temperature of zero degrees F and tested to conform to the
requirements of 3.3.3.11. The gyro-pendulum shall then be stabilized at
plus 160 degrees F and again tested to conform to the requirements of
3.3.3.11.
4.5.2.5 Pressure test.
The gyro-pendulum shall be subjected to pres-
sure of 2.7 psia.
4.5.2.6 Humidity test. The gyro-pendulum shall be placed in a suitable
test chamber and be subjected to 95 percent relative humidity for a period
of eight hours minimum at a temperature of 110 degrees F minimum.
4.5.2.7 Life test. The gyro-pendulum shall be operated for a total of
500 hours. The maximum duty cycle shall be three hours on and one hour
off under such ambient conditions that the gyro-pendulum will cool to
room temperature within the one hour off time.
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