1、MILITARY SPECIFICA RADAR SET ANIAPS- This specification is approved for use by w MI L-R-816 48B( AS) 26 rbnhey 1978 SUPERSEDING 29 MARCH 1971 I ON MIL-R-8 1648A(AS) 16 Naval Air Systems Command, Department of the Navy, and is avail able for use by al 1 Departments and Agencies of the Department of D
2、efense. 1. SCOPE Scope - The equipment covered by this specification shall be an airborne searchradar. The primary objective is to detect submarine periscopes within five .seconds after exposure. and to- provide this detection capability under severe sea conditions to ranges of at least 20 n. miles.
3、 Additional requirements include performing the functions of submari ne snorkel detection, surface pl otti ng, radar navigation and l.l station keeping. shall consist of the follow 1.2. Classification - Type Designation Power Supply PP-6633IA he equipment covered by this specification ng items: Appl
4、 icable Paragraph S-116 3.5.1 Synchroni zer-Exci ter SN460lAPS-116 3.5.2 Transmitter, Radar Set T-l203/APS-116 3.5.3 Receiver-Pul se Compressor R-1747lAPS-116 3.5.4 1.3 Associated Equipment - This equipment shall operate with the associated equipment listed in 6.7. 2. APPLICABLE DOCUMENTS General -
5、The following documents of the issue in effect on the date of invitation for bids form a part of this specification to the extent specifi ed herein: 2.1 SPECIFICATIONS Mi 1 i tary MIL-6-5087 - Bonding, Electrical, and Lightning Protection, for Aerospace Systems COMMENTS OR RECOMMENDATIONS WHICH MAY
6、BE OF USE IN IMPROVING THIS STANDARDIZATION DOCUMENT IMPROVEMENT PROPOSAL (DD FORM 1426 ) APPEARS AT THE END OF THIS DOCUMENT, OR BY LETTER ADDRESSED TO THE COGNIZANT ACTIVITY. DOCUMENT MAY BE SENT TO THE PREPARING ACTIVITY WHEN A SELF-ADDRESSED FSC 5841 * THIS DCUMIEMB CONTAINS Aircraft, Installati
7、on of Electronic Equipment, Ai rcraft, General Specification for Testing Enviromental, Aircraft Electronic Equipment Meter, Time Totalizing El ectronic and El ectrical Equi ment and associated repair parts, preparation for delivery. of Nomenclature and Namepl ates for Aeronautical El ectronic and As
8、sociated Equi ment Enviromental Systems, Pressurized Aircraft, General Requi rements for Thermal Performance Eva1 uation, Airborne El ectronic Equipment; General Requi rement for Naval Air Systems Command AR-5 AR18 AR-9 AR-1 O WR-104 STANDARDS Mi 1 i tary MIL-STD-461 MIL-STD-462 MIL-STD-463 MIL-STD-
9、704 Microelectronic Devices Used in Avionics Equipment, Precedures for Selection and Approval of Versatile Avionics Shop Test Systm, Avionics Systems Compatibil i ty , General Requi rements for Versatile Avionics Shop Test System Test Progran, General Requiranents for Maintainabil i ty of Avionics E
10、quipment and Systems, General Requirements for Naval Weapons Requirements -Radar Engineering Design Objective, requirements for El ectranagnetic Interference Characteristics, Requi ranents for Equipment El ectranagnetic Interference Characteristics, Measurement of Defi ni tions and Systms of Units,
11、El ectranagnetic Interference Techno1 ogy Electric Power, Aircraft, Characteristics and Uti1 ization of - i -_. I 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-R-L6qB 58 = 7779706 0171727 m MI L-R-816 48B( AS ) MIL-STD-781 Re1 i abil i ty Tes
12、ts, Exponential Distribution MIL-STD-785 Re1 iabil i ty Prograa for System and Equipment Deve1 opment and Production Parts and Equipment, Procedures for Packaging and Packing of MIL-STD-794 2.1.1 Avail abil i ty of Documents (1 1 When requesting specifications, standards, drawings, and publications,
13、 refer to both title and number. specification and appl icable specifications required by contractors in connection with specific procurement functions may be obtained upon application to the Commanding Officer, Publications and Forms Center, Code 105, 5801 Tabor Avenue, Philadelphia, Pennsylvania 1
14、9120. Copies of this 3. REQUIREMENTS 3.1 Preproduction - This specification makes provi sion for preproduction testi ng . 3.2 Parts and Materials - In the selection of parts and material s, fulfillment of major design objectives shall be the prime consideration. In so doing, the following shall gove
15、rn: (1 1 Microelectronic devices shall meet the requirements Of AR-5. -(2) Other parts and materials requirements shall conform to Specification MIL-E-5400. 3.2.1 Nonstandard Parts and Materials Approval - Approval for the use of nonstandard parts and materials shall be obtained as outlined in Speci
16、fication MIL-E-5400. Modules - The electronic portions of the equipment shall be functionally modularized in accordance with Specification AR-10 except as specified herein. n 3.2.2 3.3 Design and Construction - The equipment shall conform with al 1 the appl icable requirements of Specification MIL-E
17、-5400, for design, construction, and workmanship as otherwi se specified herein. “3.3.1 Total Weight - The total weight of the equipment, excluding cab1 es and interconnecting waveguide , shall not exceed 296 pounds. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
18、nse from IHS-,-,-MIL-A-81 6 48B ( AS) 3.3.2 Reliability - The contractor shall conduct a reliability program using MIL-STD-785 as a guide, On a reorder from a supplier who has previously produced the equipment, the progran previously used may be continued unless otherwise indicated in the contract.
19、3,3. 2.1 Operational Stability - The equipment shall operate with satisfactory performance, continuously or intermittently, for a period of at least 125 hours without the necessity for readjustment of any controls which are inaccessible to the operator during normal use. Operating Life - The equipme
20、nt shall have a total operating 1 Ife of 5000 hours with reasonable servicing and repl acement of parts. Parts requiring schedul ed repl acement chal 1 be specified by the contractor. 3.3.2.2 3.3,2,3 Reliability in Mean Time Between Failure (MTBF) - The equip- ment, includina an.y milt-In-Test Provi
21、sions. shall have 125 hours of mean (operating) tirne ktween failures when tested and accepted as outlined under the requi rements of 4.4.3. Time Totalizing Meter - All units of the equipment shall contain time total izi na meters in accordance with Soecification MIL-M-7793. 3.3.2.4 The time totaliz
22、ing meter will be a 10,000 hour meter and will meet military standard MS17321 or MS17322. 3.3.3 3.3.3.1 Cabling and Connectors - The equipment shall provide for the use of cables and connectors in accordance with Specification MIL-E-5400. Interconnecting Cabling - The equipment shall be capable of s
23、atisfactory operation using external wiring in accordance with the appl icable requirements of Specification MIL-W-5088. The external wi ring shall be unshielded, except that a minimum number of individual wires may be shielded when demonstrated as necessary to meet the interference control requirem
24、ents, and provided the assembly of the cable to its plugs may be easily accomplished, External cables and that portion of the connectors attached to the cables chal 1 not be suppl ied wi th the equipment. ability requirements of Specification MIL-E-5400. by the equipment and the vulnerability of the
25、 equipment to radio interference chal 1 meet the requirements of MIL-STD-461, MIL-STD-462, and MIL-STD-463. 3.3.4 383.5 Interference Control - The generation of radio interference Interchangeabil i ty - The equi pment chal 1 meet the interchange- 3.3.6 Provisions for Maintainability - The maintainab
26、ility program, t-in-test features, construction and packaging, provisions for test points, other maintainabil i ty parameters chal 1 be as specified in Specification O except as modified in this specification. 3.3.6.1 pment chal em and sha I Compatibility with VAST - Except as specified here-in, the
27、 be compatible with the Versatile Avionic Shop Test (VAST) 1 meet the requirements of Specification AR-8. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L-R-81648B ( AS ) 3.3.6.2 VAST Test Program - When required by contract, VAST Test Programs
28、 shall be furnished in accordance with Specification AR-9. If VAST Test Programs exist for the equipment, and changes to the equipment are made which will affect the fault diagnosis procedure, changes Lo the existing Test Program shall be prepared as part of the equipment changes in accordance with
29、Specification AR-9. concept is based on a hybrid mixture of VAST and Peculiar Ground Support Equipment (PGSE) that will insure maximum utilization of VAST, and utilize PGSE only to the extent necessary to over cane the limitations of VAST. BIT (Buil t-In-Test), IFPM (In Flight Performance Monitoring
30、), and the, computer controlled diagnostic program will be used to fault isolate to the WRA at the organizational level. removed and replaced with a good unit from stock. 3.3.6.3 Maintenance Concept - The ANIAPS-116 Radar mai ntenance The faulty WRA will be 3.3.6.4 Maintainabil i t.y Design Features
31、 3.3.6.4.1 Quanti tative Requirements - The quanti tative requirements for organizational maintenance chal 1 be: (1 Mean Time to Repair (MTTR) - Shall be no greater than thirty (3) minutes. (2) Maximum Repair Time (MAX 9Wh) - Shall be no greater than sixty (60) minutes for 90% of organizational main
32、tenance actions. 3.3.6.6 Built-In-Test (BIT) - A BIT system shall be included in the system design. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L-R -81 6488 (AS ) 3.3.6.6.1 BIT Confidence Level - The BIT system shall have the capability of det
33、ecting 90% of the equipment catastrophic failures. Tt,d BIT system will include continuous monitoring for determining system readiness in flight and self-test for preflight checks to determine system readiness. A warning device, of the type that will hold the last test result, will be activated on e
34、ach WRA. 3.3.6.7 ment as follows: Test Points - Test Points shall be provided on the equip- Organization Maintenance, no Test Points required. Intermedi ate Maintenance, Test Points shall be provided on the WRA in accordance with paragraph 3.5.1 of AR-10. Shop Repair Test Points shall be provided pe
35、r AR-IO, paragraph 3.5.4,2 only for SRAS designated as “Repairable“ SRA s. 3.3.6.7.1 Functional Test Point Arrangement - The test points described in 3.3.6.7 shall be brought out to and be accessible at a front panel connector. Shop Repair test points need not be brought to the surface of the WRA. 3
36、.3.6.7,l Maintainability Indices for Organizational Maintenance 3.3.6.8,l Non-Ambiguity (fi-A) Ratio - The ratio of the number of probable malfunctions detected and isolated directly to the WRA with buil t-in-test features and without ambiguity to the total number of probable malfunctions shall not
37、be less than 0.90. 3.3.6.8.2 Fixed Interface (FI) Ratio - The ratio of the number of MRAs which do not reauire adjustment or trimmina at installation in the aircraft to the total number 8f WRAs shall not 6e less than 0.75. 3.3.6.9 Maintainabil i ty Indices for Intermediate Maintenance 3.3.6.9.1 Shop
38、 Fixed Interface (SFI) Ratio - The ratio of the number of ShoD RePlaceable Assemblies (SRAS) which do not reauire ad.iustment or trimming at installation in theWRA to the total number: of SRAS shall not be less than 0.80. assignments, namepl ate approval and identification markings chal 1 be in acco
39、rdance with Specification MIL-N-18307, Standard Condi tions - The fol 1 owi ng condi tions chal 1 be used to establi sh normal performance characteristics under standard conditions and for maki ng laboratory -bench tests. 3.3.7 Nomenclature and Namepl ates - Nomenclature and serial number 3.3,a 6 Pr
40、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Temperature Room Ambi ent (25“C+1OoC Al ti tude Normal Ground Vi bration done Humidity Input Power Vol tage Room Ambient up to 90% Relative Humi di ty 11521 .O VRMS, 3, 400t2 - Hz 3.3.9 Service Conditions
41、 - The equipment shall operate satisfactorily under any of the environmental I service conditions or reasonable combination of these condi tions as specified in Specification MLL-E-5400 for C1 ass IX equip- ment except as modi fi ed herein: 3.3.10 Warm-up Time - The time required for the equipment t
42、o warm-up prior to operation shall be kept to a minimum and shall not exceed five minutes under standard conditions and 25 minutes at extreme service conditions. enrgized from the followi ng power souFce haiing charkteristics and 1 imi ts as defined in MIL-STD-704. The power required shall not excee
43、d the specified amount. AC power (three phase), 115/200, Category By 6000 VA. Electric System Operation except performance shall not be affected by short pulses of less than 50 microseconds. TO STBY to OPERATE, will be permissible in order to resume normal operation when the transient expi res. wher
44、eby rated voltage shall be appl ied to al 1 tube fil aments and circuits requiring a warm-up period. low voltage supplies, high voltages shall not be applied to other parts of the equipment. Recycling the system, cycle from OPERATE 3.3.1 2 Standby Provisions - The equipment shall have standby provis
45、ions Except for the associated filament circuits and Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3.13 Cooling - Category II and III equipment as defined in MIL-E-5400 shall utilize forced air suction cooling. 3.3.13.1 Category II - Each WRA of
46、a unit in Category II shall have been evaluated for thermal performance in accordance with MIL-T-23103 under a previous contract. This evaluation shall be used in determining the operating temperature check point for Category III units as specified herein. *3.3.13.2 Cooling Air Pressure Drop - The c
47、ooling air pressure drop between the inlet and outlet of the equipment shall be 1 1: 0.2 inches of water at sea level standard day (15OC), at 6 lb/min./Kki. ,The pressure drop in the Transmitter WRA shall be based on the Power diSSiDated when the waveauide switch is in the full rad Pmb ate position;
48、 i .e:, no power in dummy load. I In1 et Ai r Condi tion Tempe rature F1 ow Ra te ent Steady State, Atmospheric, -54OC *7OC 14.8 lb/min/kw hbient Steady State, Atmospheric, +55OC 4-45OC 14.8 1 b/mi n/kw Ambient Steady State, Al ti tude, -54OC -7C 3 lb/min/kw Transient, Atmospheric, 4-71 OC +60C 23.7
49、 1 b/mi n/kw - COOLING AIR REQUIREMENTS, CATEGORY II TABLE I 3.3.13.3 Cate or III - Each Weapons Replaceable Assembly (WRA) shall the temperature(s) of the most critical part(s) inside. atures of the parts selected for the check point shall have been determined from the evaluation of the Category II unit by MIL-T-23103. This check point shall be clearly marked. lhe installation instruction shall be such that the temperature of the check point s
