1、I I I MIL-B-38634 13 7977706 030544L 4 9 3145 MIGB-38634(USAF) al 3- 1967 MILITAF!Y SPECIFICATIOOJ 1. SCOPE 1.1 This specification establishes the requ-t for on type of fire banb, designated BS32A/B, designedfor suspensh and release from 14 dmh ejector type! bonb racks of light bcanbarchnent and fi
2、General Design Criteria for Airplane Strength and R4.gM.t General Specifications. for bat, wood, open, wirebaind Weldments, Aluminum and Alhm Auloy mer of Rwadence for Selectb of Parts and EQuipaent, Rucedure8 for Packging and Packing of Test Reparts, P 4 . . ._. . . . . /- Licensed by Information H
3、andling ServicesI MIL-B-38634 13 7777706 0305445 L W MIGB-3 8 6 3 4 ( USAFI 3.9 Interchangeability. All parts having the same manufacturerls part number shall be functionaiiy and dimensionally interchangeable. The item identification and part number requirements of MILD-1000 shall govern the mufactu
4、rerls part numbers and changes thereto. 3.10 Identification of product. Equipnent, parts, and assemblies shall be marked for identification in accordance with MILSTD-130. The identifkition nomenclature applied shall be: Bcsnb, Fh, BLLJ-32MB 3.10,l Synthetic rubber parts, Equipment and assemblies con
5、taining synthetic ru3ber parts shall be marked in accordance With ANA Bulletin 438. Cure date of ail nibber components in the bomb or cable assembly will be the date of assembly or the oldest cure date, whichever is available . 3,10.2 bt numbering of anununiticm. Eqmnt and assemblies shall be lot l
6、if meter needle deflects, cabie is shorted and shall be returned. d. After the cable assembly has been installed into the bomb, before the bamb is welded and after the bomb has been closed by welding, the following additional electrical check shall be performed: (1) Repeat 3,ll.l.l c(1) and (2). (2)
7、 Zero mitimeter on Xi000 resistance scale, (3) Touch one lead of tester .to threads of initiator adapter and the other lead, in turn, to the outer shells of the cable connectors. If tester needle deflects, cable is servbable, deflect, cable is unserviceable and SIBU be returned. e, A pressure test s
8、hall be pfd an the cable assembly before installation into the banb. T%e test pressure ShBU be 25 psig. idcage of air thmu Close all openings with suitable fasteners, seals, and plugs, fixtilre and subject it to 25 psig intemai ab pressure. Apply a soap solution to each weld; If leaks are detected,
9、the weld shall be repaired and the inspection repeated until no wsld leaks are present. Peening OP planishing of welds will be permissible for sealing minute leak areas. MILW-22248 (NOrd), Class 3, or contractors welding procedure as approved by the cognizant engineering activity, This requirement e
10、liminates the necessity for a dye- mmt check as called for in 4.5.1.2 Final electrical test. The cable assembly test of ,OO shall be performed on each completed banb assembly, Failure of this test is cause for rejection. authorized at the option of the contractor. 4.5.1,3 Leakage. Final assembly of
11、each bomb shall be inspected for leaks using the following procedures: assembly, insert special pressure adapter in other filler cap opening and apply 25 psig internal pressure. Using a soap solution, check all fittings for leaks. inspected for tightness and if necessary, shall be =placed, If parts
12、are replaced, pressure test shall be repeated until there are no leaks or evidence of structural damage. Each bcnnb shall be examined for Mount the assembly in a suitable Ai1 welds shall be in accordance with the requirements of MILW-22248, Paragraph 4.5ole3. , Rework of the bomb assembly will be in
13、stall one (i) filler cap if leaks are present, subject fitting shall be 4.5.2 Pressure tests for preproduction bomb. Internal pressure shall be reduced within the assembled bomb to a negative pressure of 3 psig and ehld for a minimum of two minutes to check for conformance with 3.8.1. Internal press
14、ure shall be increased in the assembled bamb tQ a positive pressure of 25 psig and held for a minh of six minutes to check for conformance with 3.8.1. set, distortion, or failure of any kind shall be cause for rejection. 4.5.3 Slosh-vibration and vibration for prepmduction bomb. After plugging the l
15、lDvl holes in the forward and aft end bulkheads, the bomb complete with filler caps, and cones, INERT igniters, INEKi fuzes, but without cable assembly, shall be munted in a support jig and installed on a vibktion and rocker assembly. The centerline of the hnb when mted on this assembly shall be at
16、least 20 inches above the slosh axis. “he test gpecimen shall be filled two-thirds (2/3) fill With water at ambient temperam and sirrniltaneously slosh and vihtion tested in accordance With the applicable conditions specified in 4.5.3.1 thmugh 4.5.3.6. FoiaWing the simultaneous slosh and vibration t
17、est, the bomb shall be filled to the top of the filler caps and vibrated forten minutes. At the conclusion of the slosh-vibration and vibmtion tests, the banbs shall be emptied and a leakage check in accordance With 4,5,1.3 shall be conducted. The bcenb shall be inspected for evidence of a failure, such as sagged panels, buckled plates, l- - . Licensed by Information Handling Services
