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|  MIL-R-81939B(AS)
Sampling inspections. A random sampling of the bomb racks shall be selected by the
4.4.2
procuring activity from each production lot in accordance with Table III and shall be subjected to the
inspections listed in Table II, Group 1 and Group 2. Group 1 inspections shall be conducted prior to Group
2 inspections. Failure to pass any of these inspections shall be cause for rejection of the entire lot (see 6.2.1 f
and 6.3).
TABLE Ill
SAMPLING TEST ITEMS
PRODUCTION
LOT SIZE
NUMBER OF SAMPLES
ITEM
2
100 or Less
Bomb Racks
101-200
3
4
201-300
301 or More
The procuring activity shall specify the number of samples, and the sequence of inspections
each unit shall be subjected to for lots in excess of 300 units (see 6.2.1 e).
Inspection conditions. Unless otherwise specified, all inspections shall be performed
4.5
under the following conditions:
a.
Room temperature. Room ambient of 25 +/- 10C (77+ /-18F) indicated.
.
b.
Test temperature. Al1 parts of the test item shall be stabilized at the specified temperature
+/-2.8C (+/-5 F) indicated prior to conducting any tests. Unless otherwise specified, tempera-
ture stabilization will have been attained when the indicated temperature of the surface of the
largest mass of the test item does not change by more than +/-2.8C (+/-5C) in a period of 1
hour.
c.
Swaybraces. Whenever tests require that a store be mounted to the bomb rack, sway braces
shall be used. The sway braces shall be adjusted as described in 4.6.3e for stores utilizing
355.6 millimeter (14 inch) suspension and 4.6.3g for stores utilizing 762 millimeter (30 inch)
suspension.
d.
Test stores. The stores, as referenced herein by weight, shall conform to the following
parameters. The store suspension lugs shall be in accordance with MS3314 and Drawing
1380540.
1.
The 113.4 kilogram (250 pound) store shall utilize applicable suspension lugs, spaced
355.6 millimeters (14 inches) apart. Its center of gravity shall be based on the MK.81
G.P. bomb.
2.
The 453.6 kilogram (1,000 pound) store shall utilize applicable suspension lugs, spaced
762 millimeters (30 inches) apart. Its center of gravity shall be based on the MK.83
G.P. bomb.
7
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