1、IINCH-POUND I MIL-W-63377 (AR) AMENDMENT 7 SUPERSEDING AMENDMENT 6 24 March 2000 6 January 1998 MILITARY SPECIFICATION WARHEAD, ILLUMINATING, M257 W/M442 FUZE (2.75 INCH ROCKET ILLUMINATING FLARE) This amendment forms a part of Military Specification MIL-W- 63377 (AR), dated 29 April 1987, and is ap
2、proved for use by the US Army Armament, Research, Development and Engineering Center and is available for use by all Departments and Agencies of the Department of Defense. PAGE 1 1.1 Delete in its entirety and substitute: 1.1 Scope. This specification covers the requirements, examinations and tests
3、for the M257 Illuminating Flare and the M278 Infrared Flare, both components of the Hydra 70 rocket system. It covers the quality assurance provisions and special test requirements not covered by the drawings for parts and assembly of the M257 and M278 IR flare warheads (see 6.1).”. 2.1.1: Add ”MIL-
4、W-63468 - Warhead, 2.75 Inch Rocket, H.E.: M261”. PAGE 2 2.1.1: Add ”MIL-STD-1323-351 - Unit load for Underway Replenishment 2.75 Inch Warheads, M257, M261 or M267 in Container, PA 92”. 2.1.2: Delete 8883478 - Cont, Ammo, Fiber, M518, for rocket motor: 2.75 Inch, Mark 40 Mods, and Mark 4 and Mods mc
5、 N/A 1 of 17 FSC 1340 DISTRIBTI STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-63377 (AR) AMENDMENT 7 8883479 - Box Packing Ammo for Rocket Motor, 2.75 Inch, 9347035 - Packin
6、g and Marking for Box, Wood, Wirebound 9394492 - Packing and Marking for Box, Wood Packing Mark 40 and Mods, and Mark 4 and Mods Pallet Type for Warhead 2.75 Inch Rocket Illuminating M257 Ammunition for Warhead, 2.75 Inch Rocket Flare M257, Rocket Motor: 2.75 Inch Mark 40 and Mods, and Mark 4 and Mo
7、ds 2.75 Inch Rocket Flare, M257 Rocket: Illumination, M257”. 9340646 - Box, Fiber, Packing, Ammunition for Warhead, 9340647 - Pallet, (Boxed Type), for Warhead, 2.75 Inch PAGE 3 2.1.2: Add 9 3 3 11 9 7 - Container, Ammo, Metal: PA 92 2 3 3AS4 3 - Rocket Motor, Inert, MK66 1-2-601 - Laboratory Inspec
8、tion Schedules, International Test Operation Procedures (ITOP) , TECOM 12944412 - Warhead, 2.75 Inch Rocket Flare M278(IR) 12977529 - Packing and Marking for Box, Wood Packing Ammunition for 2.75 Inch Warhead: M278 IR 2.75 Inch Rocket Flare, M257) 2.75 Inch Rocket Flare M278 IR) Il. 173 3AS3 O O - P
9、ack Shipping and Storage (For Four Warhead, 3 3 6 8AS2 O O - Pack, Shipping and Storage (For 4 Warhead Delete “19-48-4116/80P - Unitization Procedures for Boxed Ammunition and Components on 4-Way Entry Pallets” and substitute 1 9 - 4 8 - 4 11 6 / 8 OP - Unitization Procedures for Boxed Ammunition an
10、d Components on 4-Way Entry Pallets for Rocket 2.75”: Warhead and Motor (Unassembled) 1 9 - 4 8 - 4 11 6 / 8 OQ - Unitization Procedures for Boxed Ammunition and Components on 4-Way Entry Pallets for Rocket 2.75”: Warhead” 3.2: Delete on Drawing 9332220 and associated drawings” and substitute on Dra
11、wing 9332220 (12944412 for the M278 IR Flare) and associated drawings”. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-63377 (AR) AMENDMENT 7 3.4.1: Delete in its entirety and substitute: ”3.4.1 Function time. The time between rocket motor i
12、gnition and flare candle ignition shall be 13.5 + 2.0 seconds with Mk40 motor and 13.5 - + 2.5 seconds with Mk66 mtor.” PAGE 4 3.4.2: Add ”After ignition, the M257 Warhead candle shall burn continuously (remain lit) during descent. There shall be no ”chunking”. Chunking is defined as a, broken off,
13、lit section of candle that continues to burn on ground for an excess of 10 seconds. A chunk should not be confused with a burning warhead case. 3.4.3: Add ”3.4.3.1 M278 burn time. The M278 IR Flare will provide infrared light for 180 seconds + 30 seconds during flight testing, and burn time during t
14、ower testing collected for informational purposes only.” 3.5: Add ”3.5.1 M278 illumination. The minimum output in the near infrared spectrum, defined as 0.7 to 1.1 microns wavelength, shall be 222 watts per steradian. The maximum light output in the visible spectrum, defined as 0.4 to 0.7 microns wa
15、velength, shall be 1,000 candlepower with a desired output of 700 candlepower. PAGE 5 3.14, 2 places: Delete Gas Generator” and substitute 2 second de 1 ay” . Delete ”20 pounds is applied to the sear.” and substitute less than 20 - + .50 pounds is applied to the pull wire.” Add the following paragra
16、ph: ”3.14.1 Nonfunction drop test. The 2 second delay shall not function when subjected to seven foot drop to a steel plate five times in a pipe fixture.” 3.15, 2 places: Delete Gas Generator” and substitute 2 second de 1 ay” . 3 Provided by IHSNot for ResaleNo reproduction or networking permitted w
17、ithout license from IHS-,-,-MIL-W-63377 (AR) AMENDMENT 7 3.17: Delete ”50 pounds minimum and 75 pounds maximum” and substitute 40 pounds minimum and 65 pounds maximum”. 3.18: Delete 16 gs plus or minus .5 gs” and substitute, ”12 to 14 gs”. 3.19: Delete ”twenty-two (22) gs plus or minus .5 gs” and su
18、bstitute, ”20 to 22 gs”. PAGE 7 4.3.1: Delete Gas Generator 9332277 30” and substitute 2 Second Delay 9332277 50”. Add : Arm Assembly, Striker 9332265 10 Post I Zig-Zag 9332274 10 Weight Assembly Setback, Zig-Zag 9332308 10 Weight, Setback, Zig-Zag 9332309 10 Warhead, 2.75 Inch Rocket Flare M278 (IR
19、) 12944412 133 Candle and Parachute Assembly 12944413 10 Case Assembly, Loaded 12944415 50” I PAGES 8-15 Table I, Under title: Delete ”Warhead, 2.75 Inch Rocket Flare M257 and Components” and substitute ”Warhead, 2.75 Inch Rocket Flare (Flare M257 or IR Flare M278) and Components”. PAGE 11 Table I,
20、Under Gas Generator” Examination or Test: Add ”Nonfunction Drop Test 20 3.14.1 4 .4 .2 .2 O I . Delete Gas Generator” and substitute 2 second delay”. Delete Case Assembly, Loaded (Dwg 9332239)” and substitute Case Assembly, Loaded (Dwg 9332239/12944415 for M278) I. Delete ”Candle and Parachute Assem
21、bly (Dwg 9332222)” and substitute ”Candle and Parachute Assembly (Dwg 9332222/12944413 for M278)”. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-63377 (AR) AMENDMENT 7 PAGE 14 Table I: Delete “Warhead, 2.75 Inch Rocket Flare M257 (Dwq 93322
22、20)“ and substitute “Warhead, 2.75 Inch Rocket (Flare M257 or IR Flare M278) (Dwa 9332220/12944412 for M278)“. Delete: “Forty-foot drop 6 3.10 4.5.5“ and substitute “Forty-foot (12 meter) drop 6 (d) 3.10 Add : “Weight Assembly Setback, Zig-Zag (Dwg 9332308) Examination for defects 10 3.2 Post , Zig-
23、Zag (Dwg 9332274) Examination for defects Weight, Setback, Zig-Zag (Dwg 9332308) Examination for defects 10 3.2 10 I Arm Assembly, Striker (Dwg 9332265) Examination for defects 10 3.2 3.2 4 .5.5“ . 4.4.2.38 4.4.2.39 4.4.2.40 4.4.2.41“ PAGE 15 Table I, Under Notes block, Add: (d) Use a sample of 8 wa
24、rheads when testing with the PA 92 container. PAGE 16 4.4.1 , Para. C: Delete “Magnesium“ and substitute “Magnesium (Potassium Nitrate for M278)“. PAGE 24 I 4.4.2.6: Delete “203 Rivet hole .65% 3.2 Gage“ 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
25、,-,-MIL-W-63377 (AR) AMENDMENT 7 PAGE 27 4.4.2.9: Delete Majors 101, 102, 103 and 104 in their entirety. Delete Minors 201 and 202 in their entirety. PAGE 34 4.4.2.16: Delete Major 102 in its entirety. PAGE 38 4.4.2.20: Delete Gas Generator” and substitute 2 second delay”. Add Critical 2 as follows:
26、 2 Nonfunction Drop Test 10 _ 3.14.1 4.5.7“. PAGE 39 4.4.2.21, Under Drawing Number: Add “/12944415 for M278”. Under Next Higher Assembly: Add /12944414 for M278”. PAGE 40 4.4.2.22, Under Drawing Number: Add “/12944413 for M278”. Under Next Higher Assembly: Add “/12944412 for M278”. PAGE 51 4.4.2.33
27、: Delete Major 102 in its entirety. PAGE 53 4.4.2.35, 2 places: Delete Gas Generator” and substitute 2 second delay”. Delete Major 108 in its entirety. PAGE 55 4.4.2.37, Delete: ”Warhead, 2.75 Inch Rocket Flare M257” and substitute ”Warhead, 2.75 Inch Rocket (Flare M257 or IR Flare M278)”. Delete ”D
28、wg 9332220“ and substitute ”Dwg 9332220/12944412 for M278”. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-63377 (AR) AMENDMENT 7 Add 4.4.2.38, included as PAGE 55a. Add 4.4.2.39, included as PAGE 55b. Add 4.4.2.40, included as PAGE 55c. Add
29、 4.4.2.41, included as PAGE 55d. I 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- I- V) Lu t I: O z 0 I- f LL V) V) Q -1 V - P4 m “. N m a, 3 Y VI c1 O F fi a“ i 0 a, v1 3 a, U 2 2- 2 E d n o D i 3 . n i E h J k n i v1 a, U rd i a i: n n i 3 3 i
30、? 2 5 1 n i J E Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-E 3 LL O 3 I- w w I cn - bf N 2g Fa w O I- o w a I- o w I- L O N rn N NNN mmm Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L O Lu o f
31、o $5 25 zo O o I- V) u I- I: O Z I- 0 a z Q X w z I- 0 9 4 !i V) o - N mmm NNN gg zz 2 3 m R u : E x c c .d m W R a d O P m rl E a U i 10 (u u d ?i a ri: a W r( 3 b rl w R O r Ln d I: ri: O a U Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 x z I
32、UJ c1 0 a 2 2 o5 N m v e m O v, d: y! 2 o c W u El 0 i3 E 8 O a rei O V v1 Y al n u s 5 x E TI s UI W a ri O P UI ri E a U 2 Io al U 4 i? e: m m i ri 4 w n O in ri r z e: t U 11 (55d) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-63377 (AR) A
33、MENDMENT 7 PAGE 58 4.5.3, Delete “except that dummy 2.75 Inch Rocket Motors“ and substitute “except that inert 2.75 Inch Rocket Motors“. Delete “in accordance with Method 514.2-7 of MIL-STD-810C. Resonance testing does not apply.“ and substitute in accordance with TECOM ITOP 1-2-601 (dtd. 1 Mar 88).
34、“ PAGE 59 4.5.4: Delete “performed in accordance with Method 514.2, Category d.3, procedure IIc, Table 514.2-IVA and figures 514.2- 4B, 4c, 5D, 4E and 4F of MIL-STD-810C“ and substitute “performed in accordance with the vibration schedule listed in para. 4.5.4 of MIL-W-63468(AR), Warhead, 2.75 Inch
35、Rocket, H.E. : M261“. In second paragraph: Delete “The sample warheads, assembled with dummy 2.75 Inch Rocket Motors, shall be loaded in a Government furnished launcher.“ and substitute The sample warheads, assembled with inert MK40 2.75 Inch Rocket Motors, shall be loaded in a Government approved l
36、auncher (M200 or M261). When sample warheads are assembled with inert MK66 2.75 Inch Rocket Motors, they shall be loaded in a Government approved launcher (M261) .“ PAGE 60 4.5.5: Delete in its entirety and substitute the following: “4.5.5 Warhead forty-foot (12 meter) drop test. The forty- foot (12
37、 meter) drop test, as specified in MIL-STD-331, shall be performed on either (6) six warheads (2 boxes) or (8) eight warhead (2 PA 92 containers) for First Article only. Each box/container shall be subjected to a forty-foot drop test. a. For Army use, the warhead samples shall be packed and packaged
38、 in accordance with DWG. 12624792. Inert 2.75 inch rocket motors shall be used. b. For Navy use, the warhead samples shall be packed and packaged in accordance with DWG. 1733AS300. No rocket motor required. c. For either use, the orientations of the boxes/containers on striking shall be: 12 Provided
39、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-63377 (AR) AMENDMENT 7 1. One box or container - warheads nose down (longitudinal axis 45O from vertical). 2. One box or container - warheads base down (longitudinal axis 45O from vertical). No individual
40、 box/container shall be subjected to more than one drop. Prior to performing this drop test, the following is necessary: a. Mark each warhead with an x-ray plane. b. X-ray each warhead in two planes 90 opposed. Verify all components are secure and no armed fuzes are evident. c. Visually verify that
41、the zig-zag weight is in the up and safe position. d. Serialize each warhead. e. Before dropping, each packaged warhead and box/container shall be visually examined for evidence of incorrect packaging. After performing the drop test on all warheads, each round shall be x-rayed, utilizing the same pl
42、ane reference established during x-ray prior to the drop test. A visual examination shall be performed. Any warhead found unsafe shall cause the first article sample to be rejected. Il. PAGE 61 4.5.7, 5 places: Delete Gas Generator” and substitute 2 second de 1 ay” . Delete ”20 pounds is applied to
43、the sear.” and substitute ”20 - + .50 pounds on the pull wire.”. Delete 10 pounds on the sear.” and substitute 10 - + .25 pounds on the pull wire.” Delete ”sear movement or gas generator function.” and substitute ”pull wire extraction or 2 second delay function.”. Add the following paragraph: 4.5.7.
44、1, 2 Second delay nonfunction drop test. For First Article, twenty (20) each 2 second delays shall be subject to a drop test. Each 2 second delay shall be-loosely installed into a 0.50 in. dia. x 6.00 in. long steel pipe and dropped five (5) times. The ends of the pipe shall be capped to prevent eje
45、cting 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-63377 (AR) AMENDMENT 7 the 2 second delay during testing. The test fixture shall be dropped horizontal from a height of seven (7) feet min. to a steel plate. The First Article sample shal
46、l be rejected if one or more 2 second delay has functioned. For production, a sample of ten (10) 2 second delays from each production lot shall be dropped (5) times in a manner as described above. If one or more 2 second delay has functioned, the production lot shall be rejected. 4.5.8, 4 places: De
47、lete Gas Generator and substitute 2 second de 1 ay” . Delete 30 - + 2O” and substitute 30 - 2O” Delete last sentence and substitute: ”The lot shall be rejected if two or more time delay failures occur or one other defective class is found. PAGE 62 4.5.10, Delete 16 gs plus or minus .50 gs and substi
48、tute ”12 to 14 gs. Last sentence: Delete ”classed defective. and substitute ”classed defective and removed from the lot. 4.5.11, Delete 22 gs plus or minus .50 gs and substitute ”20 to 22 gs. Last sentence: Delete ”classed defective. and substitute ”classed defective and removed from the lot. 4.5.12, Last sentence: Delete ”classed defective. and substitute ”classed defective and removed from the lot. 4.5.13, Delete A complete round left out of the conditioning cabinet/container over five minutes prior to firing shall be
