1、MIL-R-25481 B(S) 13March 1967 SUERSEDI NG MI L-R-2348 1 A (Wp) 1 March 1966 MI L ITARY S PC I F IC AT1 O N ROCKET MOTOR, MARK 30 MODS 1 AND 2 This specification has been approved by the Naval Ordnance Systems Command, Department of the Navy 1. SCOPE 1.1 This specification covers rocket motor Mark 30
2、 Mods 1 and 2, 2. APPLICABLE DOCUMENTS 2.1 The following documents, of the issue in effect on date of invitation for bids or request for proposal, fom a part of this specification to the extent specified herein. S PC I F KAT I O NS Military MIL-P-116 STANDARDS Mi litarv Preservation, Methods of MIL-
3、STD-105 MIL-STD-12 9 MIL-STD-167 MIL-STD-414 DRAWINGS Bureau of Naval Weapons LM 2177145 2177155 Sampling Procedures and Tables for Inspec At tri bu tes Marking for Shipment and Storage ion by Mechanical Vibrations of Shipboard Equipment Sampling Procedures and Tables for Inspection by Variables for
4、 Percent Defective Loaded Assembly, Rocket Motor, Mark 30 Mod 1 Ballistic Requirements, Rocket Motor, Mark 30 Mods 1 and 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-2348 1 B (OS) LM 2177157 Loaded Assembly, Rocket Motor, Mark 30 Mod 2 (Wh
5、en requesting any of the preceding documents, give the complete title and designation. Copies of this specification and other unclassified specifications and standards required by contractors in connection with specific procurement functions should be obtained from the Commanding Officer, Navy Suppl
6、y Depot (CDS), 5801 Tabor Avenue, Philadelphia, Pennsyhnia, 19120. Drawings and Ordnance Data (OD) should be obtained from the Commanding Officer, Naval Ordnance Plant (CTDO), Iroquois Station, Louisville, Kentucky, 40214). 2.2 Other publications. The following documents form a part of this specific
7、ation to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. PUBLICATIONS General Services Administration Code of Federal Regulations Title 49 Transportation Uhe Interstate Commerce Commission Rules and Regu
8、 lations for the Transportation of Explosives and Other Dangerous Articles are a part of the Code of Federal Regulations. Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, D,C . 20402. Orders should cite 49 CFR 71-90, current revis
9、ion .) 3. REQUIREMENTS 3.1 Preproduction sample. Unless otherwise specified in the contract or order (see 6.2), a preproduction sample of at least 15 rocket motors shall be manufactured using the materials and procedures proposed for production. The preproduction sample shall be inspected as specifi
10、ed in section 4 for the purpose of determining that, prior to starting production, the suppliers methods are capable of providing rocket motors that conform to the technical requiwnents specified herein . After satisfactorily passing all preproduction inspections, no changes in materials or procedur
11、es shall be made without prior written approval of the procuring activity* 3.2 Data. No data is required by this specification, or by applicable documents referenCe”CTin section 2, unless specified in the contract or order (see 6.2). 3.3 Description. The rocket motor shall be in accordance with Draw
12、ing LM 2177145 or LM 2171131 and is specified herein. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-23481B 13 = 977770b 0303407 9 m MIL-R-2348 1 8 (OS) 3.4 Ballistic performance The rocket motor ballistic performance shall be in accordance
13、with Drawing 21771 55. 3.5 Reproduction environmental testing. The rocket motor shall perform as specified herein after being subjected to the environmental tests of 4.7.2.2. 3.6 Workmanship, The rocket motors shall be uniform in quality and free of defects that could adversely affect use, 4. QUALIT
14、Y ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein, Except as otherwise specified, the supplier may utilize his own facilities or an
15、y commercial iaboratory acceptable to the Government The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.2 Inspection lot. An inspection lo
16、t of motors shall consist of all motors produced under homogenous manufacturing conditions and presented for acceptance at one time. 4.3 Classification of inspections . Inspections shall be classified as follows: (a) Reproduction inspection (see 4.5) (b) Production quality conformance inspection (se
17、e 4.6) (c) Preparation for delivery inspection (see 4.8). 4.4 Sampling. 4.4.1 General inspection. Unless otherwise specified herein, sampling for determination of acceptance 6f rocket motors shall be in accordance with MIL-STD-105, inspection level II, double sampling plans for normal inspection 4.4
18、.2 Sampling for lot acceptance based on performance. Sampling for lot acceptance based on performance shall be in accordance with table 1. Table I. Sampling for Lot Acceptance Based on Performance Motor Lot Ballistic Performance Other than Ballistic Performance Size Sample Size AQL Sample Size AQL 1
19、 through 12 1 13 through 25 3 26 and over MIL-STD-414 II 1 9- 3 II O ,25 MIL-STD-105“ 1 .o - * Inspection level II, single sampling plan for normal inspection, . 3 - .- -Y :.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-2348 1 B(0S) 4.5 Pre
20、production inspection. A minimum of 15 preproduction motors, manufactured in accordance with 3.1, shall be submitted to an activity designated by the procuring activity for inspection to determine conformance to the requirements of this specification. Inspection shallbe within 90 days after submissi
21、on of the sample and be performed with equipment and procedures specified by the procuring activity. Inspection shall consist of all the examinations and tests of 4.7 and 4.8. 4.6 Production quality conformance inspection . 4.6.1 Examination. Each motor shall be examined as specified in 4.7.1 and 4.
22、8,l . 4.6.2 - Tests. The quality confotmance motors selected in accordance with 4.4 shall be tested as specified in 4.7.2.1 and 4.7.2.3. 4.7 Inspection procedure. 4.7.1 Examination. Visually examine each motor for conformance to 3.6. Presence of one or more defects shall be cause for rejection. 4.7.
23、2 Tests. - 4.7.2.1 General acceptance inspection. The rocket motors shall be inspected for conformance to the requirements of 3.3 of 4.4.1 and the Acceptable Quality Levels (AQL) of table n. Acceptance shall be based on the sampling plans Table II. Acceptable Quality Levels AQL - Classification of C
24、haracteristics Cri tical Major Mi nor * 1 .O percent 2.5 percent *For inspection lot sizes of 125 motors or less, inspect 100 percent of the lot; for lot sizes of 126 to 3200, use a sample of 125 motors with acceptance number zero; for lot sizes greater than 3200, sample in accordance with MIL-STD-1
25、05 with acceptance number zero 4.7.2.2 Environmental. The preproduction lot of rocket motors shall be subjected to environmental tests prior to static firing in accordance with the schedule of table m. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
26、,-MIL-R-23481 B(0S) Table m. Environmental Test and Static Firing Temperature Requirements O Motor Temperature Longitudinal Lateral Fir i ng Number Cycling Vibration Shock Acceleration Acceleration Temperature, F 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 X X X X X x X X X X X X X X X X X X X X X X X 120 1
27、0 10 10 120 X 120 X 120 10 120 10 120 10 120 X X 10 120 4.7.2.2.1 Temperature cycling. The rocket motors shall be subjected to temperature cycling. The soak time at each temperature shall be a minimum of 48 hours. Temperature tolerances for environmental tests and static firings shall be 150 Fahrenh
28、eit (F), The test is composed of three cycles with a single cycle described as shown in table m. Table E. Temperature Conditioning Cycle Step - Temperature Gradient no to 120F 120 to PF 770 to OF 0 to 770F 4.7.2.2.2 Vibration. (a) Theme 6.6) shall be mounted on the launcher and undergo the vibration
29、s of table Y distributed about a 1 gravity (g) steady state loading at a 0 launcher elevation. Tolerance values for vibration and shock tests shall be: frequency i 2 percent, acceleration f 10 percent, .and g 2 5 percent. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without
30、 license from IHS-,-,-MIL-R-234LB 13 777970b 0303412 9 W MI L-R-2348 1 B (OS) Table P. Vibration Testing La u nc he r Frequency“, cycles Mi ni mum Condi tin per second (cps) Acceleration, g Duration, minutes Synchronizing 7 3.2 Tracking 7 3.2 Stat i onar y In accordance with MIL-STD-167, type I. 10
31、50 *Simple harmonic motion ) A linear vibration with high frequency shock transients superimposed shall be applied in the transverse direction of both control surface planes at the tail of the round. The linear vibration shall be swept fmm 20 to 600 cps and shall produce a 300-pound peak force over
32、the entire frequency range The high frequency shock transients shall have a repetition rate of not less than 100 cps and.shaII produce 30 g peak transients simultaneously along the longitudinal axis of the round as well as in the control surface planes, (c) A torsional vibration shall be applied abo
33、ut the longitudinal axis at the after end of the round in an exponential frequency sweep from 20 to 300 cps capable of producing a 3,000 inch-pound torque over the entire frequency range . 4.7.2.2.3 - Shock. The mund shall be subjected to the following shock tests: (a) Longitudinal shock rising to 4
34、0 g in 0,010 2 0.003 second with a minimum (b) Torsional shock of 1600 radians/second . 2 dwell time o 0.020 second 4.7.2.2.4 Acceleration. The rocket motor shall be subjected to the following acceleration tests: (a) Longitudinal acceleration of 40 g held for u minimum of 4 seconds ) Lateral acceler
35、ation of 30 g held for a minimum of 4 seconds. 4.7.23 Performance. Rocket motors, selected in accordance with 4.4, shall be staticatly fired with equipment and procedures approved by the procuring activity. The preproduction rocket motors shall be fired at the temperatures specified in table IIT. Jh
36、e first quality conformance rocket motor shall be statically fired at a+temperature of 10 PF and each succeeding motor shall be alternately fired at 120“- 5OF and 10 2 5F. Rocket motors shall be conditioned to the static firing temperature for a minimum of 48 hours. The motors shall be fired within
37、1 hour after removal from conditioning. If a motor is nut fired within 1 hour, the motor shall be returned to conditioning until equilibrium temperature is reached. Four records, two thrust and two pressure, shall be obtained for each firing. Two complete channels of instrumentation shall be used fo
38、r 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-23481 B(0S) both pressure and thrust Ballistic data shall be reported as the average of two channels unless one channel is obviously in error. 4.7.2.3,l Performance lot acceptance. Failure of
39、a lot acceptance firing to meet ballistic requirements due to propellant shall be cause for refection of all grains manufactured from the same batch of propellant, The remaining motors shall be re- grouped for lot acceptance tests. Failure of a lot acceptance firing for reasons other than ballistics
40、 shall be cause for rejection of the lot, When three motors are fired, acceptance shall be based on all three motors meeting the required performance When more than three motors are fired, the sampling plans and acceptance provisions of table I shall be applied for determining whether the requiremen
41、ts of this specification are met . 4.8 Preparation for delivery inspection, 4.8.1 Examination, Each rocket motor shall be examined for conformance to section 5, Presence of one or more defects shall be cause for rejection, 5. PREPARATION FOR DELIVERY 5.1 Packaging and packing. Unless otherwise speci
42、fied by the procuring activity (see 6.2), packaging and packing shall be in accordance with MIL-P-116, method m. 5.2 Marking. Each rocket motor container shall be marked in accordance with 49 CFR 71-90 and MIL-STD-129. Marking shall include, but not be limited torthe following information: (a) Title
43、 (with applicable mod number), number, and revision letter of this spec if i ca tion (b) Suppliers name and location (e) Lot number, batch number, and date of manufacture (d) Net weight and rocket motor serial number (e Storage limitations. 6. NOTES 6.1 Intended use. The rocke. motor covered by this
44、 specification is Illtended for use as a missile sustainer, 6.2 Orderinn data, Procurement documents should specify, but not be limited to, the fol lowing: .- -.I 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M1L-R-2348 1 B (OS) (a) Title, number
45、, and revision letter of this specification ) When a preproduction sample is not required (see 3.1 and 6.3) (c) Preproduction test activity (see 4.5 and 6.4) (d) Minimum lot size, if applicable (e) Data to be retained or submitted (see 3.2 and 6.5) (f) Packaging and packing instructions (see 5.1) (g
46、) Place of delivery. 6.3 Preproduction sample. A preproduction sample is required from each supplier who has not produced the Mk 30 Mod 1 or Mod 2 rocket motors. If rocket motor production has been interrupted for more than 6 months or changes are requested in production methods, a preproduction sam
47、ple may be required. 6.4 Preproduction test activity. The contracting officer should specify the name and location of the activity responsible for preproduction testing . Motor delivery schedules, location and source of test equipment, and test procedures should be specified. 6.5 Ballistic test data
48、. The contracting officer should specify that computations and data for ballistic evaluation be reported on NAVWEP Form 8821, that data be traceable to rocket motor, and that static firing traces be reproduced and submitted as required. 6.6 Round. The term “round“ means an assembled missile-booster
49、combination. An inert loaae-d6cmster or simulated weights for missile components other than the rocket motor may be used during testing. 6.7 Explosives safety precautions . 6.7.1 Appicablity. The ioadng, assembly, and handling of the explosives, sub- assemblies, und the f;nished items covered by this specification involve hazardous operations and therefore require suitable explosivessafety precautions. At plants of the
