1、 MIL-D-BL5LB (5) 16 W 9999906 020Ll673 2 W . - . . . _. . . _ . . 1 . . . . - . . . .a I . . . I . . . . . . .-. -.-._ . . I - . . . . 3 3 . -1 . . i . . MIL-D-815P4B (A) Amendment 5 25May1972 - SUPERSEDING Amendment 4 1 March 1971 .- . .I . ._ . . . . . - MILITARY SPECIFICATION , DEVICE, RESTRAINT
2、HARNESS TAKE-UP INERTIA-LOCKING, POWERED-RETRACTING: GENERAL SPECIFICATION FOR This amendment forms a part of Military .- Specification MIL-D-81514B(AS), dated 10 September 1969, and has been approved by the Naval Air Systems Command, - Department of the Navy. Page 3 Section 2: Specifications: Delet
3、e : 11 MIL-S-38130 Standards insert: 11 MIL-STD-882 System Safety Engineering of System and Associated Subsystems and Equipments; General Specification forq1 System Safety Program for Systems and Associated Subsystems and Equipment; Requirements fort1 Page 7 Add the following p.masaph: 99 1) 3.5.2.3
4、.1.1 Cartridge/gas generator initiation - The cartridge/gas generator initiation means shall be compatible with the system/aircraft in which it is to be used. Paragraph3.5. a -2 , .i nm bwQwkNT A 1. . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M
5、IL-D-1514B (5) 16 = 9999906 020q674 4 = MIL-D-81514B (AS) Amendment 5 Paragraph 3.5.3.1: Insert Ifapplied through the harness take-up strap/cabletlat the end of the first sentence. Paragraph 3.5.3.2: Replace paragraph 3.5 3.2 with the following: “3.5.3.2 Ultimate strength (static) - The PIRD, includ
6、ing its mounting pro- visions, shall withstand without structural failure a static load of 5,000 pounds applied through the harness take-up strap/cable. Add the following paragraph: “3.5.4 Cartridge/gas generator operation detection aids - Cartridge/gas generator operation shall produce external, lo
7、ng term evidence lasting and recog- nizable for at least thirty (30) days, that the cartridge/gas generator and, if affected, the PIRD have been operated ballistically and, therefore, are no longer suitable for use. The evidence should be tamperproof. It is desirable that the PIRDs fired condition b
8、e evident both while the PIRD is installed and also while the PIRD is not installed. Paragraph 3.6.1.1.1: In the second sen6nce following flpositionll insert the following: “and the take-up strap/cable extended to one-half, or less, of full extension, l. Following the third sentence insert the follo
9、wing sentence: “With the manual control handle in the tlautolockllposition and the take-up strap/cable extended more than one-half of full extension, the inertia-locking mechanism shall not lock for llglf loads of 1-1/2 rlgtsflor lower. Locking may occur for loads between i-1/2 and 3 trgtst? Add the
10、 following to. the beginning of the fourth sentence (sixth sentence after incorporation of the preceding changes) : “For any amount of take-up strap/cable extension from O through 100 percent of full strap extension, l. Page i0 Add the foilowing paragraph: 4 “3.6.1.3.1 Stowage/take-up mechwsm cycle
11、life - The PIRD stowage;/take-up mechanism shall have a cycle life not less than 60,000 cycles distributed as follows: Page 2 of 8 pages k . -. -. -. - -. . , . c.; . f: :. . _ - _-.-. -.-.-.- . . -. . .- _-.-.-.- .-.-_LI- _-. IY.:. . . - )_. . i-. . - . . - . . . . ,. f. . _- .-. . - - ._I . _-. .
12、-. . . L ; . . . )_. . . . -. _-. .- ._ . _- . -.-.- ._._._ . . _ . . ._. .- - . . . . . . . . . . L;x;x:;:.; . : . - . . _.-. .-. . . _. . . ._. . - .- . _. . . y: :I: . . . . . , . . . f.“.:.:.:. . ,. . 1 _ . _._-_ . b. . ._.-.I. . _-.-. _ - . _ _. . ._ “ . ,._. ,_ _ .-. . , . .I._ . _.- _-_-_ . .
13、-.-.- _. _C._ . rxL-L;2:z:-L: . -.-.-.-.“ _ . .-. . . - . . . . . . _. . . . . . . _ -. . - - . . . . -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. . . . . . -. -.- . : . . . i . I . .-. - . I . ., . . . . 1 . . . MIL-D-81514B(AS) Amendment 5
14、. _I . Page 21 (Continued) 4.6.2.1.1.1 (Continued) e- At a minimum, the coverage shall include one camera positioned in front of the dummy (approximately on the extended centerline) and one to one side of the dummy (approximately 90 o from the centerline). A measurement grd shall be placed to the si
15、de of the dummy opposite from, and in the field of focus of, the sideview camera. In addition, timing marks or other means shall be employed to enable data analysts to establish an accurate correlation between the photographic data and that data obtained through other means. 4.6.2.1.1.2 Still photog
16、raphic coverage - . I . . I -.-. a 4.6.2.1.1.2.1 Pre-test photographs, - Still photographs shall be taken of the . installed test PIRD prior to initiation of each test herein required. Particular emphasis shall be given to photographing the installed PIRD codiguration/rigging/ mounting. . - . I .I .
17、 _-._- . . I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-D-81514B (AS) Amendment 5 Page 24 (Continue3 (a) 2 to 1/4 strap extension. (b) 2 to 1/2 strap extension. (c) 2 .to 1/4 strap extension. (d) 1 to 3/4 strap extension. (e) 2 to 1/4 stra
18、p extension. (f) 1 to full strap extension. This cycle test shall be completed successfully. _ Page 25 Paragraph 4.7.5.1: Change 1i1600F11 in first sentence to 14-2000F. Page 28 Paragraph 4.7.7: Replace last two sentences of paragraph with the folloWing: lThe device shall be tested while installed o
19、n the standard test fixture shown in Figure 2. Add “Figure 2. Standard test fixtureflas shown in this amendment. . Paragraph 4.7.7.1: Delete second sentence of paragraph. Page 29 Paragraph 4.7.8.1: Replace paragraph 4.7.8.1 with the following: “4.7.8.1 Methods. Means shall be provided for extending
20、and retracting the restraint harness take-up strap/cable and obtaining an accurate calibration to the ilgrf load at which the device locks to permit determining whether the locking occurs within the tolerances specified in 3.6.1.1.1. This test shall be conducted for various strap/cable extensions fr
21、om O through 100 percent of full extension. For each strap/cable extension, this test shall be accomplished by starting with the PIRD in a static condition, then increasing the tcgislcfrom zero to the limit specified in 3.6.1.1.1, at which locking shall not occur and recording and results. The devic
22、e then shall be returned to the static condition and the irgisrr increasedfrom zero to 3 trgtstr and the results recorded. A description of the testing machine shall be furnished to the cognizant Government activity and that activitys approval obtained. prior to conducting these tsts. Page 6 of 8 pa
23、ges - . . . . t _. . , . E;:; . _.,. . , . . . . . I . . . . . . . . . . , . ,. . I . . I-. _-_ - - . . . . . . . - . . . -_ . . - . “ . . . . . . . -.-.-.-. . . _ . . . . . . . . - . -. . . - _-.-._- . . . I - . . _. . ._I -.-.- - . _ -. . _-_ -, . _ _- . _.-_ - - . . ._ . , . . _ . . .- “. . . . .
24、 . I - . . -_. . . - _- I? . , . L . - . . .; . . - . . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. _-_- . . I. . I . . . . I . . . . _-_ . _-.I-. -.-_, - ._._. - ._ . - . 1 .-_- .J 7 - .- - . I-_.-_-_ * -.- . ., .-.-. . . 4 . -3. ? - . ,* .
25、._.-. 1 . . 2 . _._I Y .% . . . . . 3 . 1 . 1 . - 4 . 1 .-_ 3 1 .A -. . .-.- .t .Y ._ -., .-. . -. . . . - . . . i . . -.- . .-. .4 . . _.-.I- 3 . 1 , . -. l_.-_ - _- .-.- -I- . . “i -_e . . .-. . 7 . - -.+ - I - . I . i . .-.- I _ -1 .-.-. 4 -.- . . . . . . . . “ - -I_ -_- -.-. . - . . . . . .- . I
26、 . . . . _ ,.-_-_ - . . _.-. .-_- . - .- . -_ i -_._ - . 1. , . .-. . MIL-D-81514B(AS) Amendment 5 TABLE VI: Under column headed ?Dummy percentile“ opposite Load Condition (e), delete It 98 and substitute. 3 3 and98 . 3 and 98 3 98 Paragraph 4.7.8.2: (a) in the 9th line after %trap/cable? insert: I?
27、, at various extensions from O through 100 percent of full extension, (b) in the 10th line, delete: ?a value of 2 ogtsri. The 2 ilgisrc and substitute the following: “the maximum value specified in 3.6.1.1.1 for which locking shall not occur for the strap/cable extension being tested. This “gl? Page
28、 32 Paragraph 4.7.10: Add the following sentence to the end of the paragfaph: tlMeasurements to verify that the control handle ?auto-lock? and ?Manual lock1 position angles comply with Figure 1 shall be made during the first time the test is conducted, the last time the test is conducted and at such
29、 time as a control mechan- ism malfunction/failure is suspected or experienced. It Preparing activity: .(Project No. 1680-N267) Navy - AS Page 7 of 8 pages i,) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I. * I- - VIL-D-81514B (5) 16 7779706 0204
30、680 T W MIL-D-81514B(AS) Amendment 5 . -. - - .-. . . ._. . ._-_.- . SEAT BACK TANGENT LJNE - INERTIA STRAP 89 HEEL LINE L;:z:.=. . . . . - - _.-_ - - . . . . . . ._.-. . . . . . . . . . . . , . . :;: , ?. . -. . . . - I -.I. . - -_ . . -.-_.-.-. * . . . . . . . . . -. . . . . . .-I . . . . . .- . _
31、- . . _- - . I . . . . . ._ .- - . . . . . . . . _ . . . -. _.- -. . .- _-_- . - . _ ._ ._._. - . _.-.- . _-.I. . II_I. .- ._ _. _- . _ -.-.-. -. . . _,* . . . _ . . - . . _.- . Figure 2. Standard test fixture _. - .- . _ . . . - -_. .- Page 8 I. of 8 pagee - .- u. a GOVERNMENT PRINTIN0 WFICG 1972-714167/B077 - . e Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
