1、MIL-N-85100A 5 W 9999906 OL736bb 2 W MILITARY SPECIFICATION NAVIGATION SET, TACTICAL AN/ASN-123 r-os-33q 30 MARCH 1987 SUPERSEDING MIL-N-85100(AS) 29 MARCH 1978 Th-s specif-cation has been approved for use witAn the Naval Air Systems Command, Department of the Navy, and is available for use by all d
2、epartments and agencies of the Department of Defense, 1. SCOPE 1.1 Scope - This specificat-ion establishes the design, manufacture, and acceptance requirements for the AN/ASN-123 Navigation Set, Tactical, herein referred to as the TACNAV system. 1.2 Associated Equipment - This equipment should opera
3、te with the associated equipment in 6.7. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Air Engineering Center, Systems Engineering and Standardiza- tion Department (S
4、ESD) Code 93, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. PSC 5826 AMsc N/A DISTRIBUTION STATEMENT A: Approved for public release, distribution is unlimited. . fl THIS DOCUMENT
5、CONTAINS y PAGES- Licensed by Information Handling Services. MIL-N-85100A 58 W 9999906 0373667 4 m- 2. APPLICABLE DOCUMENTS 2.1 Government Documents 2.1.1 Specifications, Standards and Handbooks - The following specifications, standards, and handbooks form a part of this specification to the extent
6、specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation, SPECIFICATIONS Military MIL-C-172 MIL-W-5088 MIL-E-5400 MIL-T-
7、5422 MIL-C-6781 MIL-P-7788 MIL-E-17555 MIL-N-18307 MIL-T-23103 MIL-H-46855 MIL-C-8 17 7 4 Cases; Bases, Mounting; and Mounts, Vibration (for use with Electronic Equipment in Aircraft) Wiring, Aerospace Vehicle Electronic Equipment, Aerospace, General Specifications for Q Testing, Environmental, Airb
8、orne Electronic and Associated Equipment Control Panel; Aircraft Equipment Rack or Console Mounted Panels, Information, Integrally Illuminated Electronic and Electrical Equipment, Accessories, Provisional Items (Repair Parts): Packaging of Nomenclature and Identification for Aeronautical Systems Inc
9、luding Joint Electronic Type Designated Systems and Associated Support Systems Thermal Performance Evaluation, Airborne Electronic Equipment and Systems, General Requirements for Human Engineering Requirements for Military Systems, Equipment and Facilities Control Panel, Aircraft, General Requiremen
10、ts for Licensed by Information Handling ServicesSTANDARDS Military 1 MIL-N-851OOA 58 77777Ob 0173668 b M MIL-N-85 100A (AS) MIL-STD-454 MIL-STD-461 Standard General Requirements for Electronic Equipment Electromagnetic Emission and Susceptibility Requirements Interference for the Control of Electrom
11、agnetic MIL-STD-462 MIL-STD-470 MIL-STD-471 MIL- S T D- 7 O 4 MIL-STB781 MIL- S T D- 7 8 5 MIL-STD-790 MIL-STD-7 94 MIL-STD-810 MIL-STD-965 MIL-STD-1472 MIL-STb2076 MIL-STD-2077 MIL-STD-2084 Electromagnetic Interference Characteristics, Measurement of Maintainability Program for Systems and Equipmen
12、t Maintainability Verification/Demonstration/ Evaluation Aircraft Electric Power Characteristics Reliability Design Qualification and Production Acceptance Tests; Exponential Distribution Reliability Program for Systems and Equipment Development and .Production Reliability Assurance Program for Elec
13、tronic Parts Specifications Parts and Equipment, Procedures for Packaging and Packing of Environmental Test Methods and Engineering Guidelines Parts Control Program Human Engineering Design Criteria for Military Systems, Equipment and Facilities Unit Under Test Compatibility With Automatic Test Equi
14、pment, General Requirements for Test Program Sets, General Requirements for General Requirements for Maintainability of Avionic and Electronic Systems and Equipment 3 -. . Licensed by Information Handling ServicesMIL-N-85 1ODA (AS) MS 17322 Meter, Time Totalizing, Miniature, Digital, 115 Volts, 400
15、Cycle MS 91403 Cases, Large Size (For.Use With Electronic Equipment in Aircraft) HANDBOOKS Mili t arv MIL-HDBK-217 Reliability Prediction of Electronic Equipment (Copies of specifications, standards, and handbooks required by contractors in connection wits specific acquisition functions should be ob
16、tained from the contracting activity or as directed by the contracting activity.) 2.2 Other Publications - The following document(s) form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted shall be those listed i
17、n the issue of the WDISS specified in the solicitation, Unless otherwise specified, the issues of documents not listed in the DODISS shall be the issue of the nongoverment documents which is current on the date of the solicitation. X3.4-1968 ANSI Standard Code For Information Interchange (Applicatio
18、n for copies should be addressed to American National Standards Institute, Inc., 1430 Broadway, New York, NY 10018.) 2.3 Order of Precedence - In the event o a conflict between the text of this specification and the references cited herein (except for associated detail specifications, specification
19、sheets or MS standards), the text of this specification shall take precedence, tion, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained, Nothing in this specifica- 3. REQUIREMENTS 3.1 First Article - When specified in the contract or purchase order
20、, a sample shall be subjected to first article inspection (see 4.2 and 6.9). 3.2 Parts - In the selection of parts fulfillment of major design objectives shall be the prime consideration. The following shall apply: a. The contractor shall establish a parts control program in accordance with MIL-STD-
21、965, Procedure I and as specified herein. b. Microelectronic technology shall be considered and microelectronic items shall conform to requirements specified herein. Other parts shall conform to MIL-E-5400, c. 4 Licensed by Information Handling Services- NIL-N-85100A 58 7773906 0373670 4 3.2.1 Nonst
22、andard Parts and Materials Approval - Approval for the use . of nonstandard parts (including electron tubes, transistors and diodes) shall be obtained as outlined in MIL-E-5400. be obtained as outlined in MIL-STD-965. Approval for microelectronic devices shall 3.2.2 Microelectronic Modular Assemblie
23、s - When used, Microelectronic Modular Assemblies shall meet the requirements of MIL-STD-965. Conformal coatings, encapsulants, embedments or potting materials used with modular assemblies containing integrated circuits and discrete parts shall be removable without damage to the assembly. 3.2.3 Modu
24、les - The electronic portions of the equipment shall be functionally modularized in accordance with MIL-STD-2084. 3.3 Material - In the selection of material fulfillment of major design objectives shall be the prime consideration. The following shall apply: a. Hazardous material. Hazardous items are
25、 substances, mixtures, materials, components, or equipments which may cause personal injury, property damage, or environmental deterioration through transportation, use or disposal. These items shall be marked in accordance with the requirements of public law and regulations. The-marking shall inclu
26、de as applicable: Name of product; quantity; warning symbol; signal word designating degree of hazard; affirmative statement of hazards; precautionary measures covering actions to be followed or avoided; instructions in case of contact or exposure; antidotes and notes to physicians; instructions in
27、case of fire, spill, or leak; instructions for handling and storage; and disposal instructions. require labeling include: toxic, high toxic, irritant, corrosive, strong sensitizer, combustible liquid, flammable, extremely flammable liquid, dangerously reactive, pressure-generation, explosive, magnet
28、ic, ionizing radiation, non-ionizing radiation, high voltage, implosion, noise, and etiologic agent. Characteristics and operating hazards which b. Hazardous material, (see 3.3.a) shall not be used in the equipment or in connection with associated maintenance or servicing operations, without the app
29、roval of the procuring activity . 3.4 Design and Construction - The equipment shall conform with all applicable requirements of MIL-E-5400 for design, construction and workmanship, except as otherwise specified herein. 3.4.1 cables, shall be a minimum consistent with good design and shall be not gre
30、ater than 97 pounds. Total Weight - The total weight of the equipment, excluding Licensed by Information Handling ServicesMIL-N-5100A 58 779770b OL73b71 b MIL-N-85 100A (AS) 3.4.2 Reliability - The contractorshall conduct a reliability program using MIL-STD-785 as a guide. On a reorder from a suppli
31、er who has previously produced the equipment, the program previously contractually required and used shall be continued unless otherwise specified in the contract or purchase order. (see 6.2.1) 3.4.2.1 Operational Stability - The equipment shall operate with specified performance, continuously or in
32、termittently for a period of not less than 1000 hours without the necessity for readjustment of any controls which are inaccessible to the operator during normal use. 3.4.2.2 Operating Life - The equipment shall have a total operating life of 10,000 hours with minimal servicing and replacement of pa
33、rts. 3.4.2.3 Reliability in Mean Time Between Failure (MTBF) - The equipment, including any built-in-test provisions shall have 500 hours of mean (operating) time between failure when tested and accepted as specified in 4.4.2. 3.4.2.4 Time Totalizing Meter - The following units shall contain time to
34、talizing meters as specified below: Meters shall accurately record the operating time of the unit and shall be located such that they can be read without disassembly of the equipment. Unit Type of Meter - a. Computer, Navigational. MS 17322 b. Indicator, Digital Display MS 17322 3.4.2.5 Reliability
35、Program - The requirements specified in 3.4.2.5.1 thru 3.4.2.5.2 shall apply to contractor reliability programs to provide the necessary programs consistency and program control visibility. 3.4.2.5.1 Reliability Design Analysis - The analysis shall consider failure modes and effects, component loadi
36、ngs, environments, and failure rates, mean time between first failures, and mean time between functional failures. Analysis shall continue throughout the design, development, and test phases of the program and shall progressively refine reliability predictions with the most current available design
37、and environmental data. In general, early reliability projections shall be based upon estimated system configuration, component part ratings and stresses, and environmental conditions. Later predictions shall replace these estimates with actual design details, calculated loadings, and calculated loc
38、al environmental exposures. Predictions in the final phase of the program shall reflect current design using the latest design changes, and the component loadings and environmental exposures observed in the development test, adjusted where necessary to reflect maximum specified equipment ambients, 3
39、.4.2.5.1.1 Failure Modes and Effects - The reliability analysis shall include all significant failure modes. Analysis shall document failure modes, effects, and countermeasures and provide projections of relative frequencies of occurrence. Failure mode and effect analysis shall be documented in suff
40、icient detail to treat each distinct failure mode with significant impact on Specified equipment performance. 6 Licensed by Information Handling Services- - 1 MIL-N-85100A 58 m 777790b 0173672 8 m MIL-N-85100A (AS) 3.4.2.5,l.Z Environment - Component failure rate predictions shall reflect the equipm
41、ents maximum specified environmental exposures as specified in this specification, and the estimated, calculated and test-observed, local component part environments present within the equipment during operation at the specified equipment ambients. Predictions shall acknowledge heat generated within
42、 black boxes and the resulting local component temperature rises above the maximum specified black box ambient. Prediction shall also consider aircraft installation and operation and the resulting usual increase in failure rates above those observed in laboratory test. Component failure rate predict
43、ions in accordauce with MIL-HDBK-217 shall reflect the handbooks aircraft environment adjustment factors. as appropriate. Predictions based on other data shall be similarly adjusted 3.4.2.5.1.3 Statistics - Analysis of electronic components with wearout characteristics and age-dependent failure rate
44、s (cathode ray tube, batteries) and mechanical components shall consider the statistical implications of this wearout. maintenance procedures as defined in the hardware specification. I Analysis may neglect only that wearout precluded by the scheduled 3.4.2.5.1.4 MTBF Predictions - The reliability d
45、esign analysis shall provide predictions of mean time between first failure and mean time between functional failure of equipment and system. Mean time between first failures shall be based on all component parts in a series probability model. between functional failures shall consider all redundanc
46、ies which permit operation in accordance with specified requirements despite component failure modes, and redundancies This shall include.the failure sensing elements and the mechanisms used to switch from a failed path to an alternate path. shall also consider testing done to insure all redundant p
47、aths are operable at the start of a mission. Degraded operating modes associated with redundancies shall be documented. It shall also consider component stress level variations with mode of operation. Mean time Analysis 3.4.2.5.2 Failure Analysis - When specified in the contract or order, the contra
48、ctor shal.1 provide an engineering.ana1ysis of all equipment failures occurring during: a. Contract tests specified by the equipment specification. b. Service use during the contractor support phase of the program. Contractors shall employ failure analysis capabilities and facilities of the type nec
49、essary to define the cause of Eailure, including those described in MIL-STD-790. recurrence of all failures. Program planning in accordance to MIL-STD-785, shall include the necessary procedures for data collection and failed specimen control and routing. Positive corrective action shall be implemented to prevent 3.4.3 Cabling and Connections 3.4.3.1 Cables and Connectors - The equipment shall provide for the use of cables and connectors in accordance with MIL-E-5400. e 7 Licensed by Information Handling ServicesMIL-N-5LOOA 58 m 7797706 OL73b73 T m 3.4.3.2 Interconnection Cabli
