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|  MIL-R-48577(AR)
AMENDMENT 1
30 April 1979
MILITARY SPECIFICATION
REGULATOR ASSEMBLY: 11747171
This amendment forms a part of Military Specification
MIL-R-48577 (MU) dated 27 June 1975.
PAGE 2
Paragraph 3.2.3, Delete and substitute:
"3.3.3 Shock.-The Regulator shall meet the requirements of
3.4 after be subjected to cumulative shocks consisting of 3
each at 100 G's and 40 G's applied in each direction along each
of three mutually perpendicular axes. The shock pulse shall
have a wave form of approximately a half sine wave. For 100
G's + 10%, the pulse shall have a time duration of 3 .2
milliseconds; for 40 G's + 10% the shock pulse shall have a
time duration of 18 3 milliseconds."
Paragraph 3.3.4, Delete and substitute:
"3.3.4 Vibration "A".-The Regulator shall meet the require-
ments of 3.4 after being vibrated sinusoidally along each of
three mutually perpendicular axes as follows:
At a frequency of 5 Hertz (Hz), the acceleration
shall be .5G 10%.
b. During a frequency sweep of 5 to 9 Hz, increase
acceleration linearly from .5G to 1.5G's 10%.
During a frequency sweep of 9 to 500 Hz, maintain
constant acceleration of 1.5 G's 10%.
d. During a frequency sweep of 500 to 9 Hz, maintain
constant acceleration of 1.5 G's 10%.
e. During a frequency sweep of 9 to 5 Hz, decrease
acceleration linearly from 1.5 G's to .5 G 10%.
f.
At 5 Hz, the acceleration shall be .5 G 10%.
FSC 1240
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