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Page Title:
Environmental conditioning and tests. |
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|  MIL-R-85363( AS)
4,7 Environmental conditioning and tests.
4.7.1 Temperature conditioning. Sample rocket motors shall be
subjected to the applicable conditioning temperature for a minimum
period of 40 hours. The igniter assembly shall be removed from the
rocket motor and replaced with the shipping plug during conditioning.
The igniter assembly shall be subjected to the identical temperature
conditioning as the rocket motors.
4.7.1.1 Preproduction temperature conditioning. Preproduction
rocket motors to be subjected to static firing shall be conditioned
-
at the temperatures specified in table III.
4.7.1,2 Production temperature conditioning, Production rocket
motors to be subjected to static firing shall be conditioned at the
following temperatures:
OF 5F
a.
Sample 1:
Sample 2:
140F 5F
b.
4.7.2 Thermal shock. The rocket motors as specified in table III
shall undergo thermal shock testing in accordance with MIL-STD-81O,
Method 503.1 with the following changes:
a. Conditioning temperatures shall be OF (-18C) and
+ 140F (+60C).
b. Motors shall be maintained at the specified temperature for
4 hours.
4.7.3 Vibration. The rocket motors as specified in table III shall
be vibrated in accordance with MIL-STD-810, Method 514.2, Equipment
Class 4, Mounting-A, Figure 514.3, Curve C.
4.7.4
Rain, humidity, and salt fog. Temperature conditioned rocket
motors,
with the igniter assembly installed, shall be tested for resist-
ance to
rain, humidity, and salt fog in accordance with MIL-STD-81O,
Methods
506.1, 507.1, and 509.1, respectively, as specified in table II.
4.7.5 Acceleration test. Temperature conditioned rocket motors
shall be acceleration tested in accordance with MIL-STD-81O, Method
513.2, Procedure 1, with the following changes (See table III):
a. Aft longitudinal acceleration: 30 g's
b. Lateral acceleration: 12 g's
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