MIL-DTL-62542C
TABLE I. Verification methods. - Continued
Title
Requirement
Verification
Maintainability
3.5.12
4.7.2.3
Human engineering factors
3.5.13
4.7.8
Corrosion resistance
3.5.14
4.7.9
Protective finish and color
3.5.15
4.5
Identification and marking
3.5.16
4.7.10
Safety
3.5.17
4.7.11
3.6
4.8
Environmental conditions
Dust
3.6.1
4.8.1
Temperature
3.6.2
4.8.2
4.5.2.7 Slip clutch. The BSLA shall be subjected to a 52 000 lb dynamic tensile load for
2 minutes after testing in accordance with 4.5.2.4. The slip clutch shall not slip at the specified
load after completion of the BSLA reliability test conforming to 4.7.1 through 4.7.1.3.
4.6 Interface requirements verification.
4.6.1 Drive motor interface. The motor shall be removed from the BSLA by removing
standard fasteners and the motor drive shaft shall be separated at the mounting surface.
4.7 Ownership and support requirements verification.
4.7.1 R/M test. Each BSLA shall be subjected to an operational reliability test of
1150 cycles.
4.7.1.1 R/M duty cycles. The duty cycles for demonstrating R/M (see 4.7.1) shall be
conducted under the following temperatures and in the order specified:
Duty cycle no.
Temperature
65°F to 80°F (18°C to 27°C)
1 to 920 (operating)
-50°F
Storage, 24 hours (nonoperating)
-50°F
921 to 1035 (operating)
160°F
Storage, 24 hours (nonoperating)
120°F
1036 to 1150 (operating)
4.7.1.2 Operational reliability. Starting from the fully extended position (overall length
86 in. (218 cm)), the BSLA shall be operated with a starting load of 10 000 lbs (44 482 N) tensile
force over the initial 10 in. (25.4 cm) of retraction. During the next 20 in. (50.8 cm) of retraction,
the load shall be increased linearly from 10 000 lbs to 27 000 lbs during the remaining length of
the screw retraction. The load shall be maintained at 27 000 lbs load (overall length 49 in.
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