1、5 -s.- 05 MI L-L-81745B . 26 September 195 SUPERSEDING MIL-L-81745A( AS) . 23 September 1977 MILITARY SPECIFICATION LAUNCHER CONTAINER .“A1 SIZE SONOBUOY LAU - 1 26 /A This specification is approved for use by the Naval Air Systems Command, Department of the Navy and is available for use by all Depa
2、rtments and Agencies of the Department of Defense. . . _ 1, SCOPE. 1.1 Scope. This specification establishes the design, performance and acceptance requirements for the I1AI1 size Sonobuoy Launcher Container LAU-l26/A, herein referred to as the SLC. storage container for l1Al1 site sonobuoys and oth
3、er IIA size stores weighing between 10 and 40 pounds (4.5 and 18.1 kg). The SLC functions as alauncher and 2. APPLICABLE DOCUMENTS. a - 2.1 Government documents. 2.1.1 Specifications and standards, Unless otherwise specified, the following specifications and standards of the issue listed in that iss
4、ue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. - Beneficial cornants (recoiPiPendations, additions, dalethna) . and any pertinent datauhick pray be of use In imprvb8 thla d
5、ocument should be addreooed to: Commanding Officer, Naval Air Engineering Center, Systems Engineering and Standardization Departmeqt (SESD) Code 93, Lakehurst,NJ 08733, by uelng the self-addressed standardization Documenf Improvement: Propowl (DD Form 1426) appearing at the end of this document ox b
6、y letter. - T DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. f THIS DOCUMENT CONTAINS 2 I PAGES . FSC PACK Licensed by Information Handling ServicesS P EC I F IC AT I ON S Federal I I. 1. i: . PPP-T-60 PPP-T- 97 Tape, Packaging, Waterproof Tape, Pres su re - Sen s
7、i t i ve Ad he s i ve , Filament Reinforced Military MI L-D-3464 STANDARDS Federal FED-STD-H28 DoD-STD-480 Mi 1 i tary MIL-STD-105 Desiccants, Activated, Bagged, Packaging a Use and Static Dehumidification I Screw-Thread Standards for Federal Servi ces Configuration Control - Engineering Changes, De
8、viations, and Waivers Sampling Procedures and Tables for Inspection by Attributes 2.1.2 Other Government documents, drawings, and pub1 ications. The following other Government documents, drawings, and publications form a part of this specification to the extent specified herein. DOCUMENTS U.S. Gover
9、nment Printing Office, Washington, DC 49CFR Combined Federal Register, Title 49 Naval Weapons Support Center, Crane, IN 3043- ETP- 1923 Environmental Test Procedure for Sonobuoy Launcher Containers, Shipping and Storage Containers, and Pallets STF-TP-101, Vol III Manual of Sonobuoy Test Procedures,
10、“A“ Size Store Packaging Test Procedures STF-7056-2 Ballistic Test Procedure for Sonobuoy Launcher Containers with “A“ Size Store 2 Licensed by Information Handling ServicesMIL-L-L7q5B PA H 7979906 02967b 4 M1-L-=L -8 * 17 r 45*B .* - 3 t 8 M IL-L-81745B O rr) OJ O 3 cs o w v) L (Sel) lH9lM 10 Licen
11、sed by Information Handling ServicesMIL-L-81745B PA 7977906 0289684 3 . h o W v) c tL Y c x W - M I L- L -8 1.7 4 5 B O 4 rn O Cu O - a -0 w v) L J =! z Y W b k - I- x w - W U c lu E O v- E U c I 7 1 - cc 0) -rA -c -E I- 7 - .I- u . .o W Y 8 d H LL 11 Licensed by Information Handling Services-_- MIL
12、-L-L745B PA = 9999906 0289685 5 m - MI L-L-81745B . 3.6.4 Bore. The tube section of the SLC shall have a smooth bore with a diameterof 4.90 to 4.98 inches (12.45 to 12.65 cm) at the breech end and 4.90 to 5.04 inches (12.45 to 12.80 cm) at the muzzle end in accordance with drawing 1458AS120. 3.6.5 B
13、reech. end. JAU-22/B initiator and for mating to the O-ring seal of the SH-60B pneumatic launcher. The breech shall withstand the application of 150 pounds/sq.in. (10.3 bars) neumatic or hydraulic pressure (gauge) internally for 30 seconds than 10 inches (25 cm) long. The breech shall be constructed
14、 in accordance with drawing TE21077. The breech shall incorporate the features specified in 3.6.5.1 through 3.6.5.5. 3.6.5.1 Breech thread. The thread shall be 1 and 15/16-16 UNS-2B and shall be not less than .82 inch (21 mm) long with clearance for the projecting end of the initiator in accordance
15、with drawing TE21077. The UNS-2B thread shall be the same as the UN-2B thread specified by FED-STD-H28 except for a minor diameter of 1.870-1.890 inches and a pitch diameter of 1.8969-1.9139 inches. The breech threads shall permit the assembly of an initiator, without galling and until the initiator
16、 shoulder butts against the breech, by hand at a temperature as low as -30F (-34“C), and by spark resistant tool at a temperature as low as -40F (-40C). The breech thread shall withstand the application of a minimum force of 2,500 pounds (11,120 NI, applied either inwardly or outwardly from the bree
17、ch through the initiator, prior to she ar i ng . 3,6,5.2 Breech locking lugs, The breech shall have four equally spaced external radial locking lugs in accordance with drawing TE21077. The breech locking lugs shall withstand the application of a force not less than 1,600 pounds (7,117 N), applied ou
18、twardly from the breech through a simulated aircraft launch tube breech assembly, prior to shearing. 3.6.5.3 Breech environmental seal. mentally seal the breech t- the bottom of the breech thread. The seal shall rupture when exposed to a 40 pounds/sq.in. (2.8 bars) pneumatic pressure (gauge) applied
19、 into the breech thread. The seal shall not interfere with, nor be broken by, inskrtion of an initiator or insertion of the SLC into the Bayonet Base as defined by drawing 1458AS104. 3.6.5.4 Breech O-ring surface. The surface for mating to the O-ring seal of the SH-GOfineumatic launcher shall have a
20、 diameter not less than 2.175 inches (55 mm) in accordance with drawing TE21077. Between the minimum diameter and the breech thread, the surface shall be free of surface irregularities such as ejector pin marks and shall have a surface finish of 63 micro-inches or SPI-SPE Number 5 or better. 3.6.5.5
21、 P-3C pressurized chute stop alignment mark. have a raised radial bar located 180 degrees from the center of the P-3C pressurized chute stop on the SLC muzzle in accordance with drawing TE21077. 3.6.6 Muzzle. The muzzle shall be the tube section of the SLC with an open end and it shall have provisio
22、n for the assembly of a muzzle cap. The muzzle O The breech shall be the tube section of the SLC with a closed The breech shall have provision for the assembly of a JAU-1/B or without crac I: ing or rupturing. The breech shall be one piece and not less A means shall be provided to environ- The breec
23、h end shall 12 Licensed by Information Handling ServicesMIL-L-81745B PA 777770b 028768b 7 m MIL-L-81745B shall have four equally spaced anti-rotation latch slots and a P-3C wessurized chute stoD in accordance with drawina-TE21077. - 4 3.6.7 Muzzle cap. A cap and seal shall be provided to environment
24、ally seal the muzzle. The cap shall be flanaed so that external loads amlied to the cap shall be transferred to the SLi muzzle without damaging themuzzle cap release mechanism. slots or the P-3C pressurized chute stop. tactile features within the envelope of the SLC that will allow grasping the cap
25、by hand for the purpose of rotating the SLC within an unpressurized aircraft launch tube. without the use of special tools, for the purpose of removing or replacing the indexed to the muzzle and shall have store index pins in accordance with drawing 1458AS120. The muzzle cap shall have a recess perm
26、itting the application of 1 inch (25 m) wide PPP-T-97, Type II, Class B tape across the muzzle cap and up both sides of the SLC. from abrasion when the SLC is standing upright on the muzzle end. The government will procure and apply tape in the field as necessary. 3.6.8 Muzzle cap release mechanism.
27、 retention of the store in the bore of the SLC prior to launching and release of the store at launching. The design of the mechanism shall prevent Foreign Object Damage (FOD) producing debris by jettison of the mechanism with the muzzle cap at launching or retention of mechanism remnants within the
28、muzzle, Tape may be used as part of the retention design. The mechanism shall be readily removable and replaceable, without the use of special tools, for the purpose of removing or replacing the store. The mechanism shall withstand the application of a force not less than 600 pounds (2,669 N), appli
29、ed outwardly from the muzzle through a simulated muzzle cap, prior to releasing. 3.6.9 Setting ports. Some stores may require slection of operational functions and in that case ports shall be provided in the SLC tube for access to the store selection controls. Ports shall not be located in the SLC b
30、reech. ports. The ports shall be permanently covered by flexible environmental seal s that enable store function selection. The flexible seals shall be transparent so that the controls can be seen. The flexible seals used for electronic function selection shall withstand 350 selections and shall not
31、 fail during store launching. The flexible seals used for mechanical function selection, because of the greater control movement required, may be constructed of thinner material than the seals used for electronic function selection. The flexible seals used for mechanical function selection shall wit
32、hstand 50 selections without seal failure and are permitted to fail during store launching. The exterior surface of the SLC, within 0.5 inch (13 mm) surrounding the flexible seal used for mechanical function selection, shall permit the application of PPP-T-60, Type IV tape for the purpose of reinfor
33、cing the seal during store launching. The government will procure and apply tape in the field as necessary. 3.6.10 Electronic Function Select (EFS) window. Some stores may include EFS and in that case a window shall be providemthe SLC tube to enable reading of the EFS display. The performance of the
34、 SLC shall not be degraded by the addition of the window, The window shall not be located in the SLC breech. The flange shall not overhang the anti-rotation latch The cap shall have ribs.or other The cap shall be readily removable and replaceable, - x store. When sonobuoy alignment within the SLC mu
35、st be fixed, the cap shall be The recess shall protect the tape A mechanism shall be provided for The performance of the SLC shall not be degraded by the addition of O 13 Licensed by Information Handling Services_i MIL-L-B-TA 799770b 0289h7 7 W MI LLL-817 The window shall not ruptur%e during. store
36、launching. The window shall be transparent and shall not degrade either the- luminous intensity of the Light Emitting Diode (LED) display or the legibility of the Liquid Crystal Display (LCD), as specified by the sonobuoy specifications, by more than 25 percent. The window shall not degrade the LED
37、or LCD display viewing angle, as specified by the sonobuoy specifications, by more than 25 percent. 3.6.11 Obturator. An obturator shall be provided between the interior closed end of the breech and the store to seal that volume of the SLC bore. The launching impetus shall be transmitted by the obtu
38、rator to the store and shall result in launching of the store with specified velocity. surface which transmits the launching impetus to the store shall be in accordance with drawing 1458AS120. The obturator shall be retained within the SLC during and following launching. 3.6.12 Cushions. Cushioning
39、material shall be provided inside the SLC to partially absorb shock and vibration forces transmitted between the store and the SLC. The cushioning material shall prevent damage to the SLC and store or inadvertent release of the store. The cushioning material shall be retained within the SLC during a
40、nd following store launching or shall exit the SLC with the muzzle cap during store launching. 3.6.13 Desiccant. The SLC shall contain one unit of MIL-D-3464, Type II desiccant. muzzle cap and the obturator but shall not be in direct contact with the store. store launching or shall exit the SLC with
41、 the muzzle cap during store 1 aunch i ng . 3.6.14 Weight, The weight of the SLC shall be not greater than five pounds (2.3 kg): 3.6.15 Color. The color of the muzzle cap release mechanism shall contrast with the color of mating parts to assist in visual inspection. The color of the breech locking l
42、ugs shall contrast with the dark color of the SH-GOB 1 aunch tube breech. 3.6.16 Identifying numbers. The nomenclature, National Stock Number (NSN) and Naval Ammunition Logistics Code (NALC) number shall be as specified in the contract (see 6.2.1). 3.7 Marking. The SLC shall be marked with the infor
43、mation specified in 3.7.1 through 3.7.10 in accordance with SPD-15. 3.7.1 Shipping information. The SLC side, near the muzzle end, shall be marked with the NSN, NALC number, store name, store nomenclature, transmitter channel number (if- applicable), quantity, preservation level, packing date of the
44、 store lot (month and year in agreement with the bar code), loaded SLC gross weight (rounded to the nearest pound), cube (rounded to the nearest tenth cubic foot), store contract number, three digit store lot number, contractors name, and contractors address in accordance with SPD-15. 3.7.2 Store id
45、entification, SLC side. The SLC side, approximately midway betweenthe SLC ends , shall be markzd with the store abbreviated nomencl ature , 14 The obturator The desiccant may be of any shape and shall be located between the The desiccant shall be retained within the SLC during and following Licensed
46、 by Information Handling ServicesMIL-L-81745B PA 777770b 0289688 O M LL- L -8 1 7 4 5 lj. Packaging shall be as specified in the 6. NOTES. 6.1 The LAU-l26/A SLC serves as a launcher and storage container for sonobuoys and other IIAIl size stores. compatible with the P-3C, S-3A, SH-2F and SH-608 airc
47、raft. Intended use. The LAU-l26/A SLC is 6.2 Ordering dat_a. 6.2.1 Acquisition - requiremefitz. Acquisition documents should specify the following: a, Title, number, and date of this specification. b. Requirements for the reliability program (see 3.3.1). c. d. e. f. Identifying numbers assignment (s
48、ee 3.6.16). First article inspection sample size and test activity (see 4.4). Aircraft launch test sample size, AQL, and test activity (see 4.5.3). Performance maintenance inspection sample size and test activity (see Requirements for packaging (see Sil). 4.6). g. 20 Licensed by Information Handling
49、 ServicesMIL-L-81745B PA 9999906 0287694 b W MI L-L-81745B 6.2,2 Data requirements. which incratnDD-Forrn 1423, ContPact Data-Requirements List (CDRL) , the data requirements identified below shall be developed as specified by an approved Data Item Description (DD Form 1664) and delivered in accordance with the approved CDRL incorporated into the contract. When the provisions of DAR 7-104.9 (n) (2) are invoked and the RD Form 1423 is not used the data specified below shall be delivered by the contractor in accordance with the contract o
