1、 e- Jr - v. .-. -. i MIL-C-36973 13 W 977770b 0305623 7 W ir -J 1 42 MIL-C-38973(USAF) 26 June 1970 MILITARY SPECIFICATION CARTRIDGE, BOMB EJECTION CCU-lO/B This specification is mandatory for use by USAF 1. SCOPE . 1.1 This specification covers the requirements for one type of cartridge designated
2、as the Cartridge, Bomb Ejection CCU-lO/B here- after referred to as the cartridge. provide a source of gas pressure for forced jection of weapons from the Aircraft Bomb Ejector Racks MAU-l2A/A, MAU-l2B/A, MAU-lZC/A, BRU-4/A, MAU-46/A, AERO-7/A, AERO-27/A and similar type racks. The cartridge is desi
3、gned to 2, APPLICABLE DOCUMENTS 2.1 invitation for bids, form a part of this specification to the extent specified herein: The follawing documents. of. the issue in effect .on the date of SPECIFICATIONS Military . MIL-D-1000 Drawings, Engineering and Associated Lists Ammunition and Special Weapons ,
4、 General Specification For General Specification For Design and Evaluation of Cartridges for Stores Suspension Equipment MIL-A-2550 MIL-T-7743 Testing, Store Suspension Equipment , MIL-D-81303 STANDARDS Military MIL-STD-105 NIL-STD- PIIL-STD- 13 O MIL-STD-2 O2 MIL-STD-810 Sampling Procedures and Tab
5、les for Inspection by At tributes Marking for Shipment and Storage Identification Marking of U.S. Military Property Test Methods for Electronics and Electrical Parts Environmental Test Methods for Aerospace and Ground Equipment -* FSC 1377 Provided by IHSNot for ResaleNo reproduction or networking p
6、ermitted without license from IHS-,-,-MIL-C-38773 13 m 797970b 0305829 7 m MIL-C-38973(USAF) BIIL-S TD- 83 1 MIL-STD-1167 . Lot Numbering of Ammunition MIL-STD-1168 Ammunition Data Card Test Reports, Preparation f DRAWINGS Air Force 69314040 Cartridge, Bomb Ejection CCU-lO/B OTHER PUBLICATIONS Code
7、of Federal Regulations 49CFR Parts 71-79 Interstate Commerce Commission Regulations for the Transportation of Explosives and other .Dangerous Ma teria1 (The Interstate Commerce Commission Regulations are now a part of the Code of Federal Regulations (1949 Editions Revised 1965) available from the Su
8、perintendent of Documents, Government Printing Office, Washington, D.C. Orders for the above publi- cation should cite 49 CFR Parts 71-79 (Revised 1965),) 3. REQUIEMENTS 3.1 Preproduction. This specification makes provision for prepro- duction testing. 3.2 Design and Construction. The cartridge shal
9、l be constructed in conformance to Air Force drawing 69314040 and subsidiary drawings. 3.3 Function. The function of the cartridge is to provide a source of gas pressure for forced ejection of weapons from Bomb Ejector Racks MAU-12B/A, IiAU-46/A or similar types of ejector racks. 3.3.1 Ballistics. T
10、wo cartridges installed in a MAU-12 Bomb Ejector Rack and actuated by the “all fire“ current shall produce performance as noted below, The test store shall be as described in 3.3.2. Velocity Reaction Force -65 2 5F -70 5F +325 5F * +2 fps separation +2 fps separation I2a5 -i velocity l2e5 -i velocit
11、y J- n 7600 lbs max Reaction Force * * Performance values at these temperatures are to be recorded for information only. 2 c) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-38973 13 U 779770b 0305825 O . MIL-C-38973(USAF) 3.3.2 Store-A. diamet
12、er of 14.75 f 0.25 inches, and the center of gravity shall be, 4-40 0.25 inches forward of the aft lug. Fourteen-inch lug spacing shall be used. 3.3.3 rack piston stroke. diameter forward and 0,093 inches diameter aft. Store .A shall have a weight of 500 5 10 lbs, Ejection velocities shall be measur
13、ed at the end of the ejector Orifice sizes to be used are 0.110 inches 3.4 Performance 3.4.1 All-Fire.Sensitivity. The cartridge shall fire within 25 milliseconds, under all-environmental conditions, when subjected to a direct, current of 5 amperes at 24-28 volts d.c. . 3.4.2 No Fire Sensitivity. Th
14、e cartridge shall be capable of with- standing .a minimum direct current of 1 ampere or 1 watt-whichever is greater, for a duration of five minutes, minimum, without firing under any environmental conditions. 3.4.3 Sympathetic Ignition. The cartridge, when installed in the MAU-12 Rack shall fire sym
15、pathetically as a result of the electrically initiated firing, by the “all fire current of a second cartridge. . 3.4.4 Function Time. Two cartridges when installed in a MAU-l2B/A rack which is loaded with the test store of para 3.3.2 shall exhibit a function time less than 100 ms. Paragraph 3.3.3 sh
16、all apply. Function time is defined as that time from the close of the firing key to the end of piston stroke. 3.5 Electrical Resistance. The electrical resistance of the ignition element shall be a minimum of 20 ohms after firing. . . 3.6 Environmental Requirements 3.6.1 Static Discharge. The cartr
17、idge shall not fire when subjected to an electrostatic discharge of 150,000 ergs from a 500 picofarad capacitor. 3.6.2 Stray Voltage. The cartridge shall be capable of proper per- formance after subjection to 2000 pulses of direct current. shall be 105 2 5 milliamperes. seconds and pulse recurrent r
18、ate shall be 2.0 pulses per second. Each.pulse Duration of pulse shall be 300 milli- 3.6.3 Vibration. The cartridge shall be capable of satisfactory operation during and after vibration, as specified in vibration tests of this specification. 3- Provided by IHSNot for ResaleNo reproduction or network
19、ing permitted without license from IHS-,-,- _. ._ -I I MIL-C-38973 13 W 9799906 0305826 2 W I MIL-C-38973 (USAF) 3.6.4 Air Tightness. of greater than 1 x a pressure differential of 14 psi The cartridge shall not exhibit a leak rate cc/sec when subjected to a dry leak test at 3.6.5 formance during an
20、d after prolonged exposure at temperatures from Temperature. . The cartridg shall. be capable of proper per- -65F to +325F. 3.6.6 Temperature Shock. The cartridge shall be capable of proper performance after being subjected to the temperature shock testing requirements of this. specification. 3.6.7
21、Acceleration. The cartridge shall be capable of proper performance after sustaining a 50g acceleration for at least one minute in each of its three mutually perpendicular axes. 3.6.8 Acoustic Noise. The cartridge shall be capable of proper performance when subjected to acoustical noise levels of 160
22、 decibels. 3.6.9 Impact Shock. tion after being subjected to.an 8-foot drop onto a steel plate supported by concrete. 3.6.10 Temperature and Humidity Cycling. The cartridge shall be capable of proper performance after being subjected to the temperature and humidity cycling test. The Cartridge shall
23、be capable of proper opera- 3.6.11 Protective Finish. The protective finish shall be in accordance with the applicable drawings and specifications. 3.7 Workmanship. The cartridge, including all parts and accessories, shall be fabricated in a manner that will ensure that the criteria of appearance, f
24、it, and adherence to tolerances, as specified on the drawings, shall be observed. Particular attention shall be given to the markings required under “Identification of Product.“ 3.8 Identification of Product. The cartridge shall be marked for identification in accordance with MIL-STD-130; 3.9 Lot Nu
25、mbering. Each separate production lot shall be assigned an ammunition lot number in accordance with MIL-STD-1167, This lot number shall be marked on each cartridge, as shown on the assembly drawing. 3.10 Storage Group, The cartridge belongs to storage compatibility Groups B, E, and N. 4 Provided by
26、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-38773 13 W 9777706 0305827 4 M 1 MIL-C-38973(USAJ?) 3.11 .Quantity Distance Classification. Quantity-Distance item. 3.12 ICC Explosive Classification. CCU-lO/B Cartridges shall be assigned ICC explosive class
27、ification in accordance with 49CFR Parts 71-79 a The cartridge is a Class I 3.13 Government Loaned Property. The following items shall be loaned to the contractor, upon his request, as Government Loaned Property for the purpose of testing the cartridge: I tem Part Number Number Description of Item Q
28、u ant i ty 1 63514360 Rack, Bomb Ejector, As Stated Aircraft MAU-l2A/A in Contract i. 64513210 Rack, Bomb Ejector, . As Stated . Aircraft MAU-l2B/A in Contract 3 69513060 Rack, Bomb Ejector, As Stated Aircraft MAU-l2C/A in Contract 4 68513090 Rack, Bomb Ejector, As Stated Aircraft BRU-4/A in Contrac
29、t 4. QUALITY ASSURANCE P.ROVISI0NS 4.1 -Classification of Tests. cartridge shall be as follows: The inspection and testing of.the a. Preproduction Tests b. Acceptance Tests 4.2 Preproduction Testing 4.2,l Preproduction Testing. The preproduction test samples shall be representative of production car
30、tridges. numbered for test identification. They shall be tested at a laboratory designated by the procuring activity, or when so stated in the contract at the contractors plant under the supervision of the procuring activity. All samples shall be tested in the applicable bomb ejector rack. 4.2.2 Pre
31、production Test Report. In the event that preproduction testing is performed at the contractors piant, the Contractor shall, after completion of the preproduction tests, prepare a preproduction test report according to MIL-STD-831 and furnish three complete copies of the report to the.procuring acti
32、vity. They shall be consecutively -. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.2.3 Preproduction Tests. Preproduction tests shall consist of all tests described in “4.5 Test Methods“ as listed in Table I And Table II. 4.3 Acceptance Tests.
33、Acceptance tests shall consist of the following: a. Individual Tests b. Sampling Plans andTests 4.3.1 Individual Tests. Each cartridge shall be subjected to the individual tests listed in Table I. 4.3.2 Sampling Plan and Tests 4.3.2.1 Lot. with MIL-STD-105 and shall contain: Lot definition, size and
34、 formation shall be in accordance a. Components produced by a homogenous process. b. Propellant from not more than one lot. c. Ignition composition from not more than one lot. d. Ignition elements from not more than one lot. 4.3.2.2 Sampling Plan. MIL-STD-105, Inspection Level II and Table II-A, AQL
35、 of 1.0. tests will be as-stated in Table I of this specification. test plan shall be submitted to the procuring activity for approval before production begins. ?he sample size shall be in accordance with Sample A sampling 4.3.3 Rejection and Retest. When a sarriple cartridge fails to meet specified
36、 test, no cartridge on hand or later produced shall be accepted until the extent and cause of failure are determined, The cause of failure shall be corrected and subsequent cartridges shall demonstrate compliance by passing the failed tests. 4.3.4 Defects in Items Already Accepted. The investigation
37、 of a test failure could indicate that defects may exist in items already accepted. If so, tfie contractor shall fully advise the procuring activity of all defects likely to be found and methods of correcting them. - 4.4 Test Conditions 6 Provided by IHSNot for ResaleNo reproduction or networking pe
38、rmitted without license from IHS-,-,-MIL-C-38973 13 7997906 0305829 8 MIL-C-38373 (USAF) TABLE I PFEPRO- REQUIRFNENT - TEST DUCTION INDIVIDUAL SAMPLING TEST PARAGRAPH PARAGRAPH TEST TEST TEST Examination of Product Conformance to Drawings Ail Fire Sensitivity No Fire Sensitivity Sympathetic Firing E
39、lectrical Resis tance Static Discharge Stray Voltage Vib rat ion Airtightness High Temperature Low Temperature Acceleration Acoustic Noise Temperature Shock Shock x-Ray Ballistic Firing Function Time Temperature Humidity Cycling 3.2 3.2 3.4.1 3.4.2 3.4.3 3.5 3.6.1 3.6.2 - 3.6.3 3.6.4 3.6.5 3.6.5 3.6
40、.7 3.6.8 3.6.6 3.6.9 3.3.1 3.4.4 3.6.10 4.5.2 4.5.3 4.5.5 4.5.6 4.5.7 .4.5.8 4.6.1 4.6.2 4.6.3. 4.6.4 4.6.5 4.6.6 4.6.8 4.6.9 4.6.7 4.6.10 4.5.4 4.6.11 X X X x. X x. X X X X X X X X X X X X X X x. X x* X X X X x* x. X * To be conducted in conjunction with ballistic firhgs. o 7 Provided by IHSNot for
41、 ResaleNo reproduction or networking permitted without license from IHS-,-,-*rt P o s P* rt P* 8 c3 (u ri rt Y P. a 09 (D 3 e P. 3 09 VI + U o U 8 P w w I P U * C ri pt yr v. e; 03 cn I W o W U I P O 03 G m I P N O P I P w N r-! v1 1-3 m Fi M n Provided by IHSNot for ResaleNo reproduction or network
42、ing permitted without license from IHS-,-,-MIL-C-38973(UCAF) 4.4.1 Standard Conditions. Test conditions shall be as specified in each specific test under “4.5 Test Methods.“ If no conditions are stated, the following shall apply: a. Temperature 21C (70F) 2 lloC (20F). b. Relative Humidity - 90 perce
43、nt or less. 4.4.2 Test Temperature. .The cartridge shall be stabilized at the specified temperature prior to conducting any tests. stabilization shall be as defined in MIL-STD-810. 4.4.3 Test Measurements Temperature 4.4.3.1 Instruments. All measurements shall be made with instruments whose accuracy
44、 has been verified. maintained, Calibration records shall be 4.4.3.2 Tolerances. The maximum allowable tolerance on test condition measurements shall be as follows: a. b. c. d. e, E. g. h. i. j. k. 4.4.4 Temperature - plus or minus 2.8OC (5OF). . Relative Humidity - plus or minus 5 percent. Vibratio
45、n and Shock Amplitude - plus or minus 5 percent. Vibration Frequency - plus or minus 2 percent. Current - pius or mnus .2 percent. Resistance - plus or minus 2 percent. Time Interval - plus or minus 2 percent. Pressure - plus or minus 5 percent. Reaction Force - plus or minus 5 percent. Velocity - p
46、lus or minus 5 percent. Sound level - plus or minus 2 percent. Required Measurements a. Resistance of unit prior to firing. b. Firing current. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-C. Firing time. d, Pressure vc time. e, Reaction force vs
47、 time. f. Pitch rate vs time. g, Velocity. h. recorded, For preproduction testing, the cartridge number shall be i. Other measurements shall be taken as specified in prepro- duction schedule and test plan. 4.5 Test Methods 4.5.1 Classification of Tests. Inspection and testing of the cartridge shall
48、be as shown in Table I. 4.5.2 Examination of Product 4.5.2.1 Exainination of Components. One hundred percent examination shall be performed for all drawing characteristics when the component lot size is not in excess of 1000 cartridges. o 1000 cartridges, sampling inspection will be performed utiliz
49、ing a plan acceptable to the procuring agency, in accordance with MIL-STD-105. Failure to comply with all drawing and specification requirements shall be cause for rejection. 4.5,2.2 Examination of Assemblies. One hundred percent examination shall be performed to determine drawing compliance with all require- ments of the assembly drawing and this specification wh
