1、MIL-P-63223A (AR) AMENDMENT 3 03 August 1994 SUPERSEDING AMENDMENT 2 12 July 1989 MILITARY SPECIFICATION PROJECTILE, GUIDED, 155MM, M712 This Amendment forms a part of Military Specification MIL-P- 63223A (AR), dated 5 December 1984, and is approved for use by the US Army Armament, Munitions and Che
2、mical Command, and is available for use by all Departments and Agencies of the Department of Defense. PAGE 7 4.3.2, Insert the following between the word “drawings“ and the word “Environmenta“ in line 4: The scoring criteria shall be in accordance with the reliability scoring criteria in the Appendi
3、x.“ 4.3.3, Delete the first five (5) lines and substitute the following: “4.3.3 Rejection. If any test sample fails to comply with any of the applicable requirements, the first article samples shall be rejected. When launched, not more than four (4) projectiles in each temperature group of i0 projec
4、tiles and not more than seven (7) projectiles totally shall fail to function as defined in 3.3.1.3 or the first article sample shall be re j ected . II PAGE 15 * 4.4.2.5 Major Category change: From: 18109. Painting of dome (window)“ To : “109. Painting of dome (window) workmanship and dimensions“ Mi
5、nor 206 delete in its entirety and substitute the following: . “206 Preparation for delivery 100% 5.0 4.5.8“ PAGE 17 4.4.3.1 Delete the entire paragraph and substitute the following: Licensed by Information Handling Services MIL-P-63223A (3) D 9999906 L998L20 759 D MIL-P-63 22 3A (AR) AMENDMENT 3 “4
6、.4.3.1 Sequential samplinq for fliqht testing. Each inspection lot shall be subjected to the flight test by the procuring activity in accordance with 4.5.7. The scoring criteria shall be in accordance with the reliability scoring criteria in the Appendix. Sampled projectiles from each inspection lot
7、 shall be selected at random by the procuring. activity for the flight test. The test samples shall be . selected from the production .run throughout the period that an inspection lot is being produced. After selection, the test sample shall be stored in containers (MIL-P-63227) in a bonded area and
8、 no further tests on the sample shall be performed by the contractor, The acceptance/rejection criteria shall be in accordance with the sequential sample plan of Table V if there are two or less soft recovery failure, and the criteria shall be in accordance with the sequential sample plan of TabIe V
9、I if there are three or more soft recovery failures. If the number of failures for the six soft recovery rounds is equal to 2, and the score for the six-soft recovery rounds in the previous lot was 2, the sample size and criteria for lot acceptance test shall be as shown in Table VI. If the failure
10、mode(s) identified in a failed soft recovery round is such that the failure mode(s) can be eliminated from the lot by screening or rework, the Contractor may screen or rework the lot to remove the rounds with the failure mode(s1. In this event, th0 failed soft recovery round(s) shall not be scored a
11、s a failure. The Government reserves the right to implement the sample size and acceptance criteria as shown in Table V without regard to the scoring results of the soft recovery tests. In event that an accept/reject decision is determined before all selected projectiles havebeen flight tested, the
12、remaining projectiles shall be returned to the lot for delivery. The environmental test performed on the projectile is not considered destructive and projectiles that have been subjected to environmental tests and ,lot flight tested shall be returned to the lot for delivery. The cannon launch test c
13、onditions shall be in accordance with Table IV.“ 4.4.3.2, Delete the word “three (3) on line 2 of the first 4.4.3.2, Delete the first sentence in the last paragraph and paragraph and substitute the word six (6)“. substitute the following: “The contractor shall select three (3) projectiles from the b
14、eginning of the month and three (3) projectiles from the middle of the month, In each lot, at least two of the soft recovery rounds shall be separated at the seeker electronics package interface and at least two (2) rounds shall be seperated at the guidance section/warhead interface. Three (3) round
15、s, shall be 2 Licensed by Information Handling ServicesMIL-P-63223A (AR) AMENDMENT 3 tested at cold temperature (-25 degrees FI, three (3) rounds shall be tested at high temperature (t145 degrees P) and all six (6) rounds shall be fired at high g using the H119A2 zone 8 charge. In all cases, the rou
16、nds shall be preconditioned to the same temperature for the live sequence phase of the test as they were during the gunfire phase of the test. PAGE 19 Delete Table V and substitute Tables V and VI as follows: (Note: Table V was previously changed by Amendment 1.) .Table V. Sequential sample plan and
17、 accept/reject criteria. Number samples Number Fa i lur e c Re j e c t Ac cep t 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 - - - - O O O O 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 7 9 a - 3 4 4 4 0 5 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 1
18、0 10 3 Licensed by Information Handling ServicesMIL-P-63223A (AR) AMENDMENT 3 NOTES: (a) The number of failures stated above represents functional failures as defined by paragraph 4.5.1.4. A failure of this type is classified as a Major Defect. (h) If a projectile detonates prior to fuze arming the
19、failure is classified as a Critical Defect and the entire lot is rejected. Table VI. Sequential sample plan and acceptheject criteria. Number Samples Number Failures Accept Reject 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 - - - - - - O O O
20、O O 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 5 5 5 5 5 6 6 - - - 4 4 5 5 5 5 5 6 6- 6 6 6 7 7 7 7 7 8 8 8 8 0 9 9 9 9 9 1.0 10 10 10 11 11 11 4 Licensed by Information Handling Services MIL-P-63223A (31 m 0b LBL23 468 m MIL-P- 63 2 23A (AR) AMENDMENT 3 38 39 40 41 42 43 44 45 46 47 48 6 6 6 7 7 7 7 7.
21、8 9 10 11 11 11 11 11 11 11 11 1 1. 11 11 NOTES: (a) The number of failures stated above represents functional failures as defined by paragraph 4.5.1.4. A failure of this type is classified as a Major Defect. the failure is classified as a Critica. Defect and the entire lot is rejected.“ (b) If a pr
22、ojectile detonates prior to fuze arming, PAGE 29 4.5.8, Delete line 4 and substitute the following: “been prepared and soft recovered per 4.5.8.1 and figures 7 and 8. The projectile“ 4.5.8, Add figures 7 and 8 included. PAGE 30 Add the following paragragh: 4.5.8.3 Soft recovery scoring criteria I. P
23、rojectiles utilized for soft recovery firing in accordance with 4.5.8.1 shall be subject to the following scoring criteria: a. During gunfire testing, rounds which experience hard impact due to failure of the parachute recovery system will be scored as “NO TEST“. b. During continuity testing at the
24、firing site, failures will be scored only for opens or shorts that are verified by subsequent laboratory testing. 5 Licensed by Information Handling Services MIL-P-63223A 9999906 1998124 31 3T4 MIL-P-63223A(AR) AMENDMENT 3 CONTRACTOR OPE RATION I Guidance Section1 Install Connectors + Radiograph See
25、ker + Pe rfo rm Conti n u it y Test on Automatic Guidance Test Set I Perform “Stacking“ Test (Continuity) Conditions to -25/145 Condition to -25/145 Live Sequence Guidance (to fire gotcha only) Electrically Marry Guidance Perform Live Sequence I Seperate Control Assemble Parachute and Adoptors 1 IC
26、ondition Worheod and 1 I Conditin to I I Control Sections to I Fire per Procedure 1 IPerform Conister Firing 1 & I I - I 1 I Rodiogroph Fuze “open“ in Warhead? NO I Separate Control from Warhead, Remove Worheod Cables, und Send Control and Warhead Cables to Contractor Further Instructions Figure 8 7
27、 (30B) Licensed by Information Handling ServicesMIL-P-b3223A (3) rn 0b 1998126 177 rn MIL-P-63223A (AR) UrIENDMENT 3 2. Projectiles utilized for live sequence testing in accordance with 4.5.8.2 shall be subject to the following scoring criteria: a. A failure shall be scored for any confirmed failure
28、 which would result in a flight failure b. Scoring will not be based on tolerance measurements made from the live sequence records. C. Unverified anomalies will not be scored as failures. d. Intermittents caused by dirt in the control actuation e. If a round is scored as a failure due to the failure
29、 system will not be scored as a failure. of the gyro gotcha to drop and if this scored failure causes the subsequent LAT to be conducted in accordance with the accept reject criteria of Table VI, then the lot shall be accepted if the firt five (5) rounds are successful. f. During guidance section AT
30、E testing, the following 1) A failure due to the roll rate sensor shall be shall apply: scored only for catastrophic failure of the roll rate sensor. 2) A failure shall be scored due to parameter values when the parameter is outside allowable tolerances and deviates more than ten (10) percent from t
31、he previously measured value and is not due to test equipment malfunction. 3) The occurrence of a problem that would not result in a flight failure will be scored as a 8uccess unless the problem occurs more than twice. PAGE 32 Add Appendix included 8 Licensed by Information Handling ServicesflIL-P-6
32、3223A (3) H 9Ob 1998127 003 H MIL-P-63223A (AR) AMENDMENT 3 APPEND I X RELIABILITY SCORING CRITERIA FOR H712 COPPEMERD (CLGP) CANNON LAUNCHED GUIDED PROJECTILE 10. SCOPE. 10.1 Sco e. Tbis scoring criteria establishes guidelines for failure determ -+ nations on the M712 Copperhead Cannon Launched Gui
33、ded Projectile (CLGP). Failure types and reliability impact assessment criteria are defined. Paragraph 30 is the Copperhead Failure Definition and forms the basis for the Scoring Procedures of Paragraph 50. The Operational Mode Summary in Paragraph 40 outlines the basic use of Copperhead and the ran
34、ge of conditions over which test data will be scored. The Decision Table Flow Chart in Paragraph 60 provides a summary diagram of the scoring procedures detailed in Paragraph 50. 20. APPLICABLE DOCUMENTS. 20.1 Government documents. 20.1.1 Specifications and standards. Unless otherwise specif Zed the
35、 following specif icatfons and standards listed in - that issue of the Department of Defense Index of Specifications (DODISS) specified in the solicitation form a part of this specification to the extent specified herein. STANDARDS MILITARY MIL-STD-882 - System Safety Program Requirements 30. FAILUR
36、E DEFINITION. 30.1 Re uirements. The procedure of scoring has been structured + to identi y test data suitable for use in assessments of reliability. 9 (33) Licensed by Information Handling ServicesMIL-P-63223A (3) 999990b 1998128 T4T MIL-P- 63223A (AR) AMENDMENT 3 APPENDIX 30.2 General failure defi
37、nition. For the purpose of assessing reliability, a Copperhead failure is defined as any aalfunction which causes or could cause inability of the projectile to perform its intended function or a critical or catadtrophic hazard to personnel or equipment. When more than one ilalfunction occurs in a te
38、ck, only the first malfunction will be counted against reliability. 30.3 Clarification of terms. 30.3.1 Intended function. This term means the projectile must successfully survive prelaunch environment and handling, survive launch shock, and perform properly the actions to power-upI stabilize, shape
39、 trajectory (if required), acquire, correlate, arm, manuver to, and detonate at the target. 30.3.2 Critical or catastrophic hazards. These terms are defined by MIL-STD-882. An example of a failure to this classification would be a partially armed fuze prior to firing. While the projectile might stil
40、l function correctly, the hazard to personnel and equipment is unacceptable. 30.4 Types of failures not chargeable against prolectile reliability. a. A failure to function caused by a malfunction of the interfacing equipment or sytems, eng., power failure of the designator, or incorrect arming solut
41、ion or procedure. b. A malfunction, real or potential, resulting from not following the prescribed operational or maintenance procedure in the M712 Technical Manuals. c. A malfunction resulting from accidental test item abuse or testing beyond specification limits and conditions. d. Any secondary or
42、 follow-on malfunction when more than one malfunction occur6 during a test. 30.5 reliability. Types of failure, chargeable against projectile a. A malfunction which would prevent the projectile from performing its intended function. hazard to personnel or equipment. malfunction occurs. . b. A malfun
43、ction which would cause a critical or catastrophic C. The first or initial malfunction when more than one 10 (34) Licensed by Information Handling ServicesMIL-P- 632 23A (AR) AMENDMENT 3 APPENDIX d. A malfunction or problem detected prior to launch which e. A malfunction, real or potential, caused b
44、y following the could cause the projectile to malfunction or present a hazard. prescribed operational or maintenance procedures in the M712 Technical Manuals. 40. M712 OPERATIONAL HODE SUMMARY a. The E1712 Cannon Launched Guided Projectile (Copperhead) will be used in indirect fire by 155m field art
45、illery units to destroy or neutralize moving and stationary point targets, such as armored and mechanized vehicles, field fortification, small logistic points, small groups of personnel, and command or observation posts. b. The operational Copperhead can be expected to undergo shipping, storage, dep
46、loyment, transportation, handling, loading, firing, flight to and detonation at a laser designated target. The Copperhead System Specification, ARC 100, dated 12 July 1978, contains the performance requirements that Copperhead must meet. The following set of stated conditions have been established a
47、s the range of conditions from which t.est data will be scored for *reliability: c. 40.3.1 Climate: Operating categories 1-6, storage categories 1-7, AR 70-38- .40 . 3 2 40.3.3 highest par 40.3,4 40.4.5 - 40.3.6 40.3.7 Cloud cover: Not below 1,000 feet AGL. Wind speed: 50 knots, any direction) betwe
48、en of trajectory. Gun to target range: Maximum - 16,000 Minimum - 5,000 meters -(high angle) 3,060 meters (low angle) Maximum designator to target range . Stationary Targets 6,000 Gun target - observer target angle . b and meters Between + or - 45 degrees from firing azimuth Visibility range: 7,500
49、meters 11 (35) Licensed by Information Handling ServicesMIL-P-63223A (3) 9999906 L79BL30 bTB . 40.3.8 panel 40.3.9 equivalent. -. 40.3.10 MIL-P-63223A (AR) AMENDMENT 3 APPENDIX Target type: 16 ft. x 16 ft. stationary flat black Designator performance: GLLD specifications or Target: Reflectivity is equal to.or greater than 10%. 50. SCORING PROCEDURE . 50.1 General information. So the scoring committee can better use the procedures defined below, the following information and definitions are provided. 50.2 Projectile configuration. This scoring criteria h
