1、MIL-I-2352LtA 66 = 9999906 OL3L902 9 W .+o-c 3 MIL-I-23524A(AS) 10 March 1986 SUPERSEDING MIL-I-23524(WEP) 30 January 1963 MILITARY SPECIFICATION INDICATOR, ATTITUDE-DIRECTOR, REMOTE, ID 1329A(V) This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is
2、available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers design and all performance requirements for two types of a remote attitude-director indicator, which is a component of the integrated flight instrumentation system. di,splays
3、 pitch and roll attitude and azimuth information with full freedom about each axis and flight director information controlled by remote circuits. The indicator 1.2 Classification. The indicators are the following two types: 1.2.1 ID 1329A - AC all axises drive motor 1.2.2 ID 1329A/A - DC all axises
4、drive motor 1.3 Associated equipment. The remote attitude-director indicator manufactured in accordance with this specification is a component of an integrated flight instrumentation system conforming to MIL-S-23535. other components are the horizontal situation indicator manufactured in accordance
5、with MIL-1-23366 and the Flight Director Computer manufactured in accordance with MIL-C-23367. The 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and Standards. The following specifications and standards form a part of this specification to the extent specified herein. Unless
6、 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. Beneficial comments (recommendations, additions, deletions) and any pertinent data whi
7、ch may be of use in improving this document should be addressed to: Systems Engineering and standardization Department (Code 93, Naval Air Engineering Center, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improve- ment Proposal (DD Form 1426) appearing at the end of this
8、document or by letter. AMSC-N /A FSC 6610 DISTRIBUTION STATEMENT A. APPROVED FOR PUBLIC RELEASE: DISTRCBUTION IS UNLIMTED. THIS DOCUMENT CONTAINS #y - PAGES. . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-23524A S P ECI F I CAT IONS FED ERAL
9、 BB-N-4 1 1 DD-G-451 PPP-c-795 PPP-C-1752 PPP-c- 1797 PPP-C-1842 qQ-C-320 QQ-N-290 QQ-P-416 MILITARY MIL-P-116 MIL-B-131 MI L-C-675 MIL-M-317 1 MI L- E-5400 MI L-T-5422 MI L-C- 5 54 1 MI L-L-6085 MIL-S-7742 MIL-M-7793 MIL-A-8625 MIL-T- 18303 MIL-1-23366 MIL-C-23367 MIL-S-23535 MIL- L-25467 MIL-L-264
10、82 Ni trogen, Technical. Glass, Float or Plate, Sheet, Figured (Flat, for Glazing, Mirrors and Other Uses). Cushioning Material, Flexibale, Cellular, Plastic Film for Packaging Applicantions. Cushioning Material, Packaging, Unicellular Polyethylene Foam, Flexible. Cushioning Material, Resilient, Low
11、 Density Unicellular, Polypropylene Foam Cushioning Material, Plastic, Open Cell for Packaging Applications). Chromium Plating (Electrodeposited). Nickel Plating (Electrodeposited). P1 ati ng , Cadmi um ( El ec trodeposi ted) . Preservation, Methods of. Barrier Materials, Watervaporproof, Greaseproo
12、f, Flexible Heat Sealable. Coating Of Glass Optical Elements (An ti ref 1 ecti on). Magnesium Alloy, Processes for Pretreatment and Prevention of Corrosion on. Electronic Equipment, Aerospace, General Specification for. Testing, Environmental, Airborne Electronic Equipment. Chemical Conversion Coati
13、ngs on Aluminum and Aluminum Al loys. Lubricating Oil, Instrument, Aircraft, Low Volatility. Screw Threads, Standard, Optimum Selected Series, General Specification for. Meter, Time Totalizing. Anodic Coatings, for Aluminum and Aluminum Alloys. Test Procedures, Reproduction, Acceptance, and Life for
14、 Aircraft Electronic Equipment, Format for. Indicator, Horizontal Situation, ID-l013/A Computer, F1 ight Di rector, Aircraft. System, Integrated F1 ight Instrumentation. Lighting, Integral, Red, Aircraft Instrument, General Specification For. Connectors, Electrical (Circular, Mi nlature Quick Discon
15、nect, Environment Resisting) Receptacles and Plugs, General Specification for. c i b c 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-23524A bb W 77777Ob 0333904 2 MIL-I-23524A MI LI TARY MIL-G-81559. - STANDARDS FEDE RA L FED-STD-595 MILITA
16、RY MIL-STD-129 - MIL-STD-130 - MIL-STD-454 - MIL-STD-461 - MI L-STD-704 - MI L-STD-781 - MI1-STD-794 - MI L-STD-889 - DOD-STD-1866 - MS 18028 - MS 33558 - Gyroscope Assemblies and Atti tude and Directional Reference Instructions for Aircraft; Packaging of - 2 , ,- Colors. Marking For Shipment And St
17、orage. Identification Marking of U.S. Mi 1 i tary Property. Standard General Requirements For Electronic Equipment . Electromagnetic Emission and Suscepti bi 1 i ty Requirements for the Control of Electromagnetic Interference. Electric Power, Characterisi tics. Reliability Design Qualification and P
18、ro- duction Acceptance Tests: Exponenti al Di stri bution. Part and Equipment, Procedures for Packaging and Packaging of Di ssi mi lar Metal s. Soldering Process, General (Nonelectrical). Indicator, Attitude - Director, Remote. Numerals and Letters, Aircraft Instrument. (Copies of specifications, st
19、andards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Other publications. The following document forms a part of this specification to
20、 the extent specified herein. Unless otherwise Specified, the issues of the documents which are DOD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS shall be the issue of the nongovern
21、ment documents which is current on the date of the solicitation. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 3951 - Commercial Packaging, Practice for. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103
22、.) (Industry association specifications and-standards are generallly available for reference from 1 i braries. techni cal groups and us i ng Federal agenci es. 1 They are also distributed among Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MfL-I-23
23、52LlA bb W 94794b 013LqO5 4 MI L-I-23524A 2.3 Order of precedence. In the event of a conflict between the text of this specif i cation and the references cited herei n (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take prece
24、dence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First Article. When specified in the contract or purchase order, samples shall be subjected to first article inspection (see 4.3 and 6.4).
25、 3.2 Parts. 3.2.1 Commercial parts. Commercial parts having sui table properties shall be used, where on the date of invitations for bids, there are no suitable standard parts. In any case, commercial parts, such as screws, bolts, nuts and cotter pins, having suitable properties, shall be used prov
26、i ded : a. They can be replaced by the standard parts (MS or AN) without al terati on. b. The corresponding standard part numbers are referenced in the parts list and, if practicable, on the contractors drawings. 3.2.2 Standard parts. With the exception of 3.2.1, MS and AN standard parts shall be us
27、ed where they suit the purpose. They shall be identified on the drawings by their part numbers. 3.3 Materials. Materials shall conform to applicable specifications and shall be as specified herein. Materials for which there are no applicable specifications, or which are not specifically described he
28、rein, shall be of the best quality, of the lightest practicable weight and suitable for the purpose intended. 3.3.1 Critical materials, Noncritical materials shall be used where practicable. Where the use of a critical material is essential to meet specification requirements, the material used shall
29、 be the least critical of those which are adequate for the purpose. 3.3.2 Non-magnetic materials. Non-magnetic materials shall be used for all parts of the indicator except where magnetic materials are essential. 3.3.3 Protective treatment. When materials are used in the construction of the indicato
30、r which is subjected to corrosion in environmental conditions likely to occur during normal service life, they shall be protected against such corrosion in a manner that will in no way prevent compliance with the performance requirements of this specification. Finishes and protective coatings which
31、will crack, chip or scale during normal service life or are affected by extremes of environmental conditions, shall not be used. 4 icr e Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-235ZLIA 66 W 777770b 0333706 6 MIL-I-23524A 3.3.3.1. Metals
32、. Metals shall be of the corrosion resistant type, or shall be suitably protected as specified herein to resist corrosion due to fuels, salt environment or atmospheric conditions to which the indicator may be subjected when in storage or during normal service life. shall not be used in intimate cont
33、act with each other, unless suitably protected aganst electrolytic corrosion by means of protective coatings or hermetic seal i ng. 3.3.3.2 Dissimilar metals. Dissimilar metals as defined in MIL-STD-889 3.3.3.3 Magnesium alloy parts. Magnesium alloy parts shall be treated in accordance with MIL-M-31
34、71. When abrasion resistance is a factor, an anodic treatment approved by the acquiring activity shall be used. (see 6.2.1) 3.3.3.4 Aluminum alloy parts. Where practicable, aluminum alloy parts shall be coated with an anodic film conforming to MIL-A-8625. Dial plates, small holes, pipe threads and c
35、ase inserts need not be anodized. Aluminum alloys which do not anodize satisfactorily shall be coated with a chemical fi lm in accordance wi th MI L-C-5541- 3.3.3.5 Iron and steel parts. Iron and steel parts which are in hermetically sealed cases shall be cadmium plated in accordance with QQ-P- 416.
36、 Parts which are not in sealed cases shall be chromium or nickel plated in accordance with QQ-C-320 or QQ-N-290, respectively. space in the presence of organic material shall be tin-cadmium plated. Parts in a confined 3.3.3.6 Fungus-proof materials. Materials which are nutrients for funqi shall not
37、be used where it is practicable to avoid them, Where used and-not hermetically sealed, they shall be treated with a fungicidal agent acceptable to the acquiring activity (see 6.2.1). sealed case, fungicidal treatment will not be necessary. If used in a hermetically 3.3.3.7 Fumes and vapors. Material
38、s used in the construction of the indicator shall not produce corrosive, deleterious or toxic fumes or vapors under the conditions speci fi ed herein. 3.3.4 Lubrication. The lubricating oil used in the indicator shall conform to MIL-L-6085. The amount of lubricating oil used shall be sufficient for
39、at least 1000 hours of operation. 3.4 Design and construction. The indicator shall be designed and constructed so that the complete mechanism consisting of all components, except the pitch trim knob assembly and lighting components, as required, shall be removable from the case as a unit. It shall b
40、e so constructed that no parts shall work loose in service and shall withstand normal shocks, vibrations and such other conditions as are incident to shipping, storage, installation and service without failure. The indicator shall conform with all the appl icable requirements of MIL-E-5400 for desig
41、n, construction and workmanship, except as otherwise specified herein. 5 . - .- : . . I , -. . ,. . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-I-i3524A bb m 90b 0131907 m MIL- I-23524A 3.4,1 Maintainabi 1 i ty. The design shai 1 be reasonab
42、ly simple to facil i tate as much as possible disassembly, repair or overhaul, service maintenance and reassembly using those tools and items of maintenance which are normally available as commercial standard equipment without requiring special tools and fixture. 3,4,2 Case. The case shall conform t
43、o MS18028, shall be made of non- ferrous, low density metal, uniform in texture, with a smooth surface and shall be hermetically sealed. The case shall be finished with a lusterless black material I Color No. 37038 of FED-STD-595. shall be of a durable type to withstand usage encountered in service.
44、 The pitch trim knob shall be 3/4 inch in diameter and one inch long. The case shall be isolated from all electrical circuits within it. The finishing material 3.4,2.1 Hermetic sealing. The case shall provide a hermetically sealed enclosure for the interior mechanism. The case shall be so constructe
45、d that it may be opened, the mechanism removed and replaced and the case resealed at least three times. tool, jig or fixture, unless such device is specifically approved by the acquiring activity (see 6.2.1). The sealing of the case shall not be dependent upon any material which shall be adversely a
46、ffected by any atmosphere to which the indicator may be subject in normal use encountered in mi 1 i tary ai rcraf t. This shall be possible without the use of any special 3.4.2.2 Filling medium. The filling medium shall be a mixture of 95 percent helium and 5 percent carbon dioxide or a mixture of g
47、ases approved by the acquiring activity (see 6.2.1). The nitrogen used shall conform to BE-N-411, Type I, Class 1, Grade A, The filling medium shall be of at least 98 percent purity, free of dust particles and shall not contain more than 0,006 milllgram of water vapor per liter (dew point -65C) at t
48、he filling pressure. O. 1 atmosphere. The case shall be filled to an absolute pressure of 1 2 3.4.2.3 Fogging. There shall be no fogging of the cover glass when the indicator is energized for a minimum of 1 hour in a 71C ambient temperature and the indicator face then rubbed with an ice cube for a 1
49、 to 2 minutes. (see 4.6.32.1) 3.4,3 Component parts. The indicator shall consist of the parts and mechanisms necessary to Drovlde and oDerate a roll, pitch and azimuth display; a displacement indicator; a rate of turn indicator; a slip indicator and appropriate warning flags, as specified herein and i 1 Justrated in Figures 1, 2, 3 and 4. include, within its case, a time totalizing meter conforming to MIL-M-7793. The atti tude display shai 1 basical iy consist of a bank an
