1、 INCH-POUND MIL-W-63441A(AR) AMENDMENT 9 29 June 2001 SUPERSEDING AMENDMENT 8 13 November 1996 MILITARY SPECIFICATION WARHEAD, 2.75 INCH ROCKET, PRACTICE: M267 This amendment forms a part of MIL-W-63441A(AR), dated 17 May 1983, and is approved for use by the U.S. Army Armament Research, Development,
2、 and Engineering Center and is available for use by all Departments and Agencies of the Department of Defense. PAGE 1 Paragraph 2.1.1, SPECIFICATIONS, MILITARY, Add: “QAC-1415 - Rocket, 2.75 Inch/Hydra-70: Assembly, Packing and Testing”. “MIL-B-63469 - Body Assemblies, General Purpose Grenade: M73 a
3、nd 75 (Practice).” Bottom of page: Add: PAGE 2 (a) Paragraph 2.1.2: Delete section from “MISSILE INTERIM .” to “. Alabama 35898.)”. (b) Delete references to specification MIS-30862 and substitute QAC-1415. Make this substitution wherever it appears in this document. (c) Paragraph 2.1.2, Product Draw
4、ings: Add: “12937865 - Packing and Marking for Container, Metal, for 2.75 Inch Rkt., M261/M267”. AMSC N/A 1 of 5 FSC 1340 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
5、,-MIL-W-63441A(AR) AMENDMENT 9 2 (d) Paragraph 2.1.2: Add: “PUBLICATIONS ITOP-1-2-601 - Laboratory Inspection Schedules, International Test Operations Pro- cedures (ITOP), TECOM”. PAGE 3 (a) Paragraph 3.3: Delete and substitute: 3.3 Grenades. 3.3.1 M75 general purpose practice grenade. The grenade s
6、hall comply with MIL-G-63445. (b) Delete paragraph 3.7 (Reliability). (c) Paragraph 3.8, line 2: Delete “MK66 Mod 1 motor” and sub- stitute “MK66 Mod 1, Mod 2, and Mod 3 motors”. (d) Paragraph 3.9, line 4: Delete “components” and substitute “major components and subassemblies, such as pusher plate,
7、M75 grenade, simulator grenade, cable, etc.,”. PAGE 4 Paragraph 3.16, line 2: (a) Delete “4.5.8” and substitute “4.5.6.” (b) Delete “and shall comply with the ballistic test as spec- ified in 4.5.10.” PAGE 7 TABLE I. First Article Inspection: (a) Delete “102” and substitute “108” (four places). (b)
8、Note (a): Delete “leakage tests (6)” and substitute “nonenvironmental (6)”. (c) Delete Note (b) and substitute “The first article ballistic sample shall be rejected if two or more payloads fail to eject, or if all the grenades in any warhead fail to function.” Provided by IHSNot for ResaleNo reprodu
9、ction or networking permitted without license from IHS-,-,-MIL-W-63441A(AR) AMENDMENT 9 3 PAGE 8 Paragraph 4.4.1, last line: Delete “4,000.” and substitute “5,000.” |Paragraph 4.4.1 (d), change “d” to read: “d. Metal parts from no more than two lots bearing the same interfix number from one manufact
10、urer, except no more than six lots of warhead cases may be used within each individual warhead case interfix number from one manufacturer.” PAGE 10 Paragraph 4.4.2.2: Add minor defect 202: “202. Packing missing 0.65% 3.2 Visual”. PAGE 11 Paragraph 4.4.2.3: (a) Major defect 109: Delete and substitute
11、: “Leakage test 6 - 3.16 4.5.6”. (b) Add Major defect 110: “Ballistic test 36 - 3.18 4.5.8”. PAGE 12 (a) Paragraph 4.5.1, second sentence, Delete and substitute: “Verify that all major components, assemblies, and sub- assemblies, such as pusher plate, M75 grenade, simulator grenade, cable, etc. are
12、present and properly placed; that all grenades are safe; and that no foreign material is present.” (b) Paragraph 4.5.2: Delete “box” and “boxes” and substitute “box or container” or “boxes or containers” where applicable (8 places). PAGE 13 Paragraph 4.5.2, 3rd last paragraph, line 3: After “contain
13、ers” add “(fiber containers are not required if fastpack is used)”. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-63441A(AR) AMENDMENT 9 4 PAGE 14 (a) Paragraph 4.5.2, last paragraph, line 3: Delete “intact and securely in place).” and substi
14、tute “intact and not manually removable).” (b) Paragraph 4.5.3, third paragraph: Delete “The packed shipping boxes . . . Resonance testing does not apply.” and substitute “The packed shipping boxes or metal containers shall be subjected to the vibration test in accordance with para- graph 4.1, and w
15、ith Figures on pages: B-3, B-4, and B-5 (40 min. /axis); B-6, B-7, and B-8 (32 min./axis), International Test Operations Procedures (ITOP), 1-2-601, dated 01 March 1988. Resonance testing does not apply.” PAGE 16 Paragraph 4.5.6: (a) Line 2 - 3: Delete “for first article testing only.” (b) End of pa
16、ragraph, Add: “To inspect the cargo compart- ment, unthread the base plug in the rear of the warhead, and remove the nose cone and base nose cone assemblies. If one or more warheads fail to meet the requirement, the test shall be considered a failure. This test is to be conducted for first article t
17、esting and until two consecutive lots have complied with the acceptance criteria specified. After satisfying this requirement, the leakage test shall be performed on every subsequent third lot only. Should the lot fail the acceptance criteria, the contractor shall be required to return to the two co
18、nsecutive lot procedures above.” |Paragraph 4.5.8: Delete and substitute: “4.5.8 Ballistic test. The requirement for the warhead is to provide a ballistic match with the M261 tactical MPSM warhead, realism, and an indication of ground impact resulting from the proper delivery of M75 grenades into ta
19、rget areas from 1000 to 6000 meters from the launching helicopter. Performance shall be evaluated by ground launching a sample of 36 M267 warheads, assembled with M66 Mod 1, Mod 2, or Mod 3 motors, from any of the compatible launchers per the following matrix: CONDITIONING TEMPERATURE FUZE SET RANGE
20、 -50 + 5F +70 15F +150 - 5F 1 KM 4 each 4 each 4 each 3 KM 4 each 4 each 4 each 6 KM 4 each 4 each 4 each Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-63441A(AR) AMENDMENT 9 5 Each rocket shall be temperature conditioned for a minimum of 8 h
21、ours and shall be fired within 10 minutes after removal from temperature conditioning chamber. Firing and fuze charging shall be accomplished by a Government-approved ballistic firing set. Grenade functioning and time from launch to cargo ejection shall be detected and recorded. Except with one situ
22、ation described below, the lot shall be rejected if three or more payloads fail to eject or if all the grenades in any warhead payload fail to function. In the event all three grenades from one warhead failed to function, the lot shall still be acceptable if both of the following conditions are met:
23、 a. One or more grenade duds from the failed warhead show evidence of air collision with the spent rocket casing or another grenade. b. The total dud count, excluding the grenade(s) that showed evidence of air collision, does not exceed 11.” PAGE 19 Paragraph 6.3: Delete “US Army Armament Research a
24、nd Development Command, ATTN: DRDAR-QAF-I, Dover, NJ 07801.” and substitute “U.S. Army Armament Research, Development, and Engineering Center, Attn: AMSTA-AR-QAC-S, Picatinny Arsenal, NJ 07806-5000.” The margins of this amendment are marked with vertical lines to indicate where changes to the previo
25、us amendment were made. This was done as a convenience only, and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the require-ments of this document based on the entire content irrespective of the marginal notations and relationship to the last previous amendment. Custodian: Preparing activity: Army-AR Army-AR (Project 1340-1023) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
