1、MIL-N-553bA 5 W 9777706 0375332 2 m F0 b gs MIL-N-855 A AS 13JuLY1 di( 7 SUPERSEDING 24 OCTOBER 1984 MI L-N-85516 (AS) MILITARY SPECIFICATION NAVIGATION SET, INERTIAL AN/ASN-l30A, AIRCRAFT This specification is approved for use within the Naval Air Systems Command, Department of the Navy, and is ava
2、ilable for use by all Departments and Agencies of the Department of Defense. 1. SCOPE. 1.1 Scope. This specification establishes the requirements for performance, design, development, test, and compatibility for the Inertial AN/ASN-l30A Aircraft Navigation Set. 2. APPLICABLE DOCUMENTS. 2.1 Governmen
3、t documents. 2.1.1 SPecifications and standards. Unless otherwise specified in the contract or purchase order, the following specifications and standards of the issue, listed in that issue of the Department of Defense index of Specifications and Standards (DoDISS) specified in the solicitation form
4、a part of this specification to the extent specified herein. 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
5、tion Department (SESD) Code 93, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) amearinq at the end of this document or bv letter. DISTRIBUTION STATEMENT A: Approved for pub1 ic release, distribution is un1 imi ted. FSC 5826 1MSC N/A
6、 / THIS DOCUMENT CONTAINS / fd PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-N-551bA C 9999906 L75LL3 MIL -N -855 16A (AS ) SPECIFICATIONS Federal PPP-7-60 P PP -T- 7 6 PPP-8-585 PPP-B-601 PPP-B-621 PPP-B-636 QQ-S-781 Mi 1 i tary, MIL-P
7、-116 MIL-B-5087 MIL-W-5088 MIL -E4400 MIL-T-5422 MIL-M-7793 MIL -N - 18307 M IL-P-19834 MIL-T-23103 Tape, Packaging, Waterproof Tape, Pressure Sensitive Adhesive, Paper (For Carton Sealing) Boxes, Wood, Wirebound Boxes, Wood, C1 eated-Plywood Boxes, Wood, Nailed and Lock-Corner Boxes, Fiberboard Str
8、apping, Steel, and Seals Preservation-Packaging, Methods of Bonding, Electrical, and Lighting Protection for Aerospace Systems Wiring, Aircraft, Selection and Installation of Electronic Equipment, Airborne, General Specification for Testing, Environmental, Airborne Electronic and Associated Equipmen
9、t Meter, Time Totalizing Nomencl ature and Iden t i fi cat ion for Electronic, Aeronautical, and Aeronautical Support Equipment Including Ground Support Equipment Plates, Identification or Instruction, Metal Foil Adhesive Back, General Specification of Thermal Performance Evaluation, Airborne Electr
10、onic Equipment, General Requirements for 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-83287/1 STANDARDS Federal FED - STD - 5 9 5 Military MIL-STO-100 MIL-STO-129 MIL-STD-147 MIL-STD-275 MIL-STD-454 MIL-STD-461 MI L-STO -462 MIL-STD-704 MI
11、 L-STD-781 MIL-STD-810 MIL-STD-882 MI L-STD-965 MIL-STD-1130 MIL -STD - 1472 MIL-STD-1553 MIL-STD-2084 MIL-N-85516A (AS) Indicators, Fault Location, General Specification for Col ors Engineering Drawing Practices Marking for Shipment and Storage Palletized Unit Loads (40“ x 48“ 4 Way Partial and 4 W
12、ay Pallets) Printed Wiring for Electronic Equipment Standard General Requirements for Electronic Equipment Electromagnetic Emission and Susceptibility Requirements for the Control of Electromagnetic Interference El ectromagnet ic Interference Character i st ics Measurement of Electrical Power, Chara
13、cteristics, Aircraft Reliability Tests: Exponential Distribution Environmental Test Methods System Safety Program for Systems and Associated Sub- Systems and Equipment; Requirements for Parts Control Program Connections, Electrical, Solderless Human Engineering Design Criteria for Military Systems,
14、Equipment and Facilities Aircraft Internal Time Division Comand/Response Multiplex Bus Maintainability of Avionic Systems and Equipments, General Requirements for 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.1 . 2 Other Government. documents,
15、The fa1 lowing other G0vernmen.t document forms a part of this specification to the extent specified herein, AR-52 Shipboard Data LCnk System Requirements for Aircraft Inertial Na.vigaEian System Alignment and Wajpain Insertion. (Copies of specifications and Standards required by manufacturers in co
16、nnection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity,) specification to the extent specified herein, The ssues of he dacuments which are in4tcated as Do adopted shalT be the issue Tisted in he current DoDZSS and the
17、supplement thereto, if appl icahle 2.2 Other publicadions. The foilowing documents form a part of this ARENG 4 ARINC Synchro System Manual (Application for copies, should be addressed to Aircraft Radio., Incorporated 2551 Riva Road , 4nnapo3i.s , MD. 214QL), A3818R. 879002 F-I8 Avionics Multiplex De
18、sign Specfficat ion instal lation % Control Set inertial Mount 52A-3080 Sensar Pod Control Box AscemBly ASTM-03951 Comercial Packaging, Practice for (Application for copies should be addressed to the McDonnell Aircraft Company, St. Louis, MissourT 63166) 2,3 Order of precedence. In the event of 6 co
19、nflict between the text of this mecification and the references cited herein (except for associated detail specifications, specification sheets OP MS standards), the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulati
20、ons unless a specific exemption hac been obtained. 3. REQUIREMENTS. 3.1 Item. description. 3.1.1 Lnertial navigation set (INS). The inertial navigation set shall be a self-conained, fully automatic, inertial reference for piloting and navigating the aircraft over land and sea at all attitudes, longi
21、tudes and latitudes, The INS shall he comprised of the assemblies specified in 3.1.1. and 3.1J.2. 3.1.1,L Inertial navigation unit (INU) . The INU provides a stable element, decoupled from aircraft motion, for attitude, heading and velocity, reference information and inertial alignment/navigation co
22、mputations, It al so provides the primary INS input/output interface via the /(I Signai Connector. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-o- t- W Y MIL-N-8551bA 58 M 9999906 0375336 T = MIL-N-85516A (AS) P I r 1 5 Provided by IHSNot for Re
23、saleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-85516A (AS) 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-855LbA 58 m 7777706 OL75LLB 3 = MIL-N-85516A (AS) 3.1.1.2 Inertial navigation unit mount (INU mount). T
24、he INU mount shall allow for angular adjustment of the INU about all three axes. the INU and INU mount.envelope. Figure 1 depicts 3.2 Parts and materials. In the selection of parts and materials, fulfillment of major desiqn objectives shall be the prime consideration. In so doing, the fol lowing ord
25、er of precedence shall apply for selecting types of electronic parts: a. Maximum use of monolithic microelectronic integrated circuits. b. Thin film, thick film or hybrid microcircuit devices. c. Discrete parts. d. Other parts and materials requirements shall conform to MIL-E-5400. e. Nonreparable s
26、ubassembl ies shall be used in accordance with MIL-STO-2084 and as specified in MIL-E-5400. f. When previously produced models of this equipment did not use nonreparable subassembl ies, the design shall not be changed to employ nonreparable assemblies without the approval of the procuring activity (
27、see 6.2.2). 3.2.1 Nonstandard parts and materials approval. Approval for the use of nonstandard parts and materials (including electron tubes, transistors and diodes) other than microelectronic devices shall be obtained as specified in MIL-E-5400. a Microelectronic devices shall be approved as speci
28、fied in MIL-STD-965. 3.2.2 Microelectronic modular assemblies, When used, microelectronic modular assembl ies shall meet the reauirements of MIL-STD-965. Conformal coatings , encapsulants, embedments, or potting materials used with modular assemblies (designated as reparable) containing integrated c
29、ircuits and discrete parts shall be easily removable without damage to the assembly. 3.2.3 Modules. The electronic portions of the equipment shall be functionally modularized in accordance with MIL-STO-2084 when practicable. When previously produced models of this equipment do not incorporate MIL-ST
30、D-2084, the design shall not be changed to incorporate MIL-STO-2084 5 - without the approval of the procuring activity (see 6.2.2). 3.2.4 Fasteners. Fasteners shall conform to MIL-STD-454, Requirement 12. Screws used to attach the equipment to the aircraft shall be 3/16 inch diameter or larger unles
31、s specified otherwise herein. Mounting provisions shall be designed so that no mounting screw threads are in bearing. heat treated above 180,000 psi shall be ion vapor deposited, aluminum coated or vacuum cadmium plated. Fasteners requiring the use of tools other than Alloy steel bolts standard Navy
32、 issue hand tools shall not be used in the equipment. O 3.2.5 Materials. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-N-85516A (AS ) 3.2.5.2 Finish and coiors. The equipment and parts thereof shall be finished in accordance with MIL-E-5400
33、 except after pretreating the surface of cases, boxes, a minimum of une coat of corrosion inhibiting primer shall be applied to aluminum and non-corrosion resistant steel surfaces. In addition, the exterior surfaces of cases, boxes, except for electrical bonding surfaces, shall be pained with a mnim
34、um of two coats of enamel , No lacquer shall be used. The INS WRAs shall be Gold, Color No. 17043, in accordance with I FED-STD-595 3,2.5.1 Dissimilar metals. Unless protected against electrolytic corrosion by means of a protective coating, intimate contact of dissimilar metals shall be avoided. Pro
35、tection of dissimilar metal combinations shall be in accordance with MIL-STD-454, Requirement 16, 3,2.5,3 Parts terminating processes. The contractor developed terminating I processes used in the modification or repair of single, double-sided, or multilayered printed circuit boards (PCBs) shall be a
36、t least equal to comparable processes specified in MIL-E-5400. 3.3 Design and construction. Design and construction of the equipment shall conform with MIL-E-5400, except as otherwise specified herein, and shall be such that the equipment shall meet all the requirements of this specification, with s
37、pecial effort to assure inherent reliability, so that the equipment will consistently and repeatedly perform as specified, 3,3.1 Dimensional limitations, Unit site(s), mounting and other construction features shall conform to the envelope shown on figure 1. The construction features (nameplate, mete
38、rs, handles, connectors, built-in test failure indicator) chal 1 be coordinated with the procuring activity. a, Unit cases. Except for controls, displays, all units shall be contained in cases meeting requirement of the envelope shown on figure 1. Unit case design shall incorporate the human enginee
39、ring design criteria specified in MIL-STD-1472. b. The cooling air exhaust shall be on the front of the INU (outboard), 3.3.2 Total wei ht. The equipment shall be designed to achieve the minimum feasib -I-%- e weig t consistent with the total requirements as stated herein; however, the weight of the
40、 equipment shall be not greater than 36 pounds (16.33 kilograms), 3.3.3 Reliability. 3.3.31 Operational stability. The equipment shall operate as required continuously or intermittently for a period of not less than 700 hours without the necessity for readjustment of any control other than that requ
41、ired to initiate an equipment recalibration sequence. The equfpment shall not require removal from the aircraft for recalibration for a period of not less han twelve (12) months, 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-8553bA 58 = 997
42、790b 0375320 3 3.3.3.2 Operating life. 3.3.3.3 Reliability in mean-time-between-failures (MTBF). The equipment, The minimum acceptabpe MTBF shall be baseA upon a discrimination The equipment shall have a total operating life of 10,000 hours with minimal servicing and replacement of parts. including
43、built-in-test (BIT), shall have a specified mean-time-between- failures (MTBF) of 800 hours for 0 and 400 hours for 8 as defined in MIL-STD-781. ratio of 2.0 and a confidence level of 80 percent. this MTBF when operated in any mode or combination of modes (except the equipment shall have a specified
44、 MTBF of 1350(80) hours for the back-up AttitudeIHeading Reference System (AHRS) function) and under any natural combination of the loads and environmental conditions specified herein. Successful completion of the testing herein shall not relieve the contractor of the responsibility for compliance o
45、f production units with the specified re1 iabil ity and performance requirements during any subsequent testing or service usage within the limitations specified herein. The equipment shall provide 3.3.4 Time totalizing meter. The equipment shall include a digital, nonresetting 9999 hour time totaliz
46、inq meter conforminq to the amlicable requirementi of MIL-M-7793 and MIL-STD-1472 which will-indicate unit “ON“ time. (“ON“ time is defined as any operating mode, including BIT.) practicable, the meter shall be located so that it may be easily read with the unit normally mounted in the aircraf witho
47、ut removing a cover from the unit. Where 3.3.4 Cabling and connections. 3.3.4.1 Cables and connectors. The equipment shall provide for the use of external connectors in accordance with MIL-E-5400. Where possible, al 1 cable connectors shall be electrically bonded in accordance with MIL-B-5087. 3.3.4
48、.2 Interconnecting cab1 ing. The equipment shall be capable of specified operation using external wiring in accordance with the applicable requirements of MIL-W-5088. The external cables shall be unshielded, except that a minimum number of the individual wires may be shielded when demonstrated as ne
49、cessary to meet interference control requirements, and provided that the assembly of the cable to its plugs may be easily accomplished, External cables and that portion of the connectors attached to the cables shall not be supplied as part of the equipment. 3.3.4.3 Internal wiring. The use of wire wrap solderless connections 3.3.4.4 Interconnecting wiring. The equipment shall meet the performance
