1、- MIL-D-8505bA 12 W 9999906 0363293 8 M MILITARY SPECIFICATION DUAL MODE TRACKER FOR BOMBING SET, ANGLE RATE AN/ASB-l9(V) This specification is approved for use by the Naval Air System Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defe
2、nse. 1. SCOPE 1.1 Scope. This specification establishes the performance, functional, and test requirements for two configurations of an airborne dual mode tracker for the AN/ASB-l9(V) Angle Rate Bombing Set (ARBS). The Dual Mode Tracker (DMT) will herein be referred to as “the tracker.“ The two conf
3、igurations are differentiated by the following nomenclature: a. for A-4M aircraft AN/ASB-lg(V)l b. for AV-8B aircraft AN/ASB-l9(V)2 Note: - The Signal Data Converter and Heat Exchanger Hose Assemblies differ for A-4M and AV-8B; see 1.2 (a) and (b) below. 1.2 Classification. The tracker equipment cov
4、ered by this specifica- tion shall consist of the following items: 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, Engineering Specifications an
5、d Standards Department (ESSD) Code 93, Lakehurst, NJ, 08733 by using the self-addressed Standardization Docu- ment Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. c s -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
6、IHS-,-,-flIL-D-8505bA 12 79797Ob 036327LI T I! MIL-D-85056A(AS) Type Designation a. A-4M: Part Numb er Applicable Paragraph Receiver-Processor 3366021-100 3.4.1.1 R-2028/ASB-i9(V) Converter, Signal Data 3366022-100 3.4.1.2 CV-3393/ASB- 19 (V) Heat Exchanger 3366030-100 3.4.1.3 HD-1005/ASB-19 (V) Hea
7、t Exchanger Hose Assy. 3491400 (two), Related Assy. b. AV-8B: Receiver-Processor 3366021-100 . 3.4.1.1 R-2028/ASB-19 (V) Converter, Signal Data 3366022-101 3.4.1.2 CV-3693/ASB-19 (V) Heat Exchanger 3366030-100 3.4.1.3 HD-100$/ASB-19 (V) Heat Exchanger Hose Assy. (Two Pieces One of Each) Related Assy
8、. 3366801-1 and 3366801-2 Paragraphs that apply to both A-4M and AV-8B are marked either A-4M and AV-8B, or, remain unmarked. If applicable to A-4M only, then the para- graph will be marked A-4M Only; If applicable to AV-8B only, then the paragraph will be marked AV-8B Only. 1.3 Associated Equipment
9、. The tracker operates with the following equipment in accordance with MIL-A-85055: a. A-4M Associated Equipment: I tem Specification/Part Number Weapon Delivery Computer (WDC) Control Unit (CU) Subsystem TV Monitor Attitude Reference System MIL-W- 8505 7 MIL-C-85058 IP- 9 36-AXQ AN/AJB-3A 2 ._ . .
10、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-8505bA 12 m 77777Ob 03b3275 I SPECIFICATIONS Military MIL-E-5400 b. AV-8B Associated Equipment: Mission Computer (MC) AS-4197(V) AMMl/AN/AYK-l4(V) Inertial Navigation Set, AN/ACN-130 PS74-870082/A
11、N/ASN-130 Display Processor PS75-870105 Stability Augmentation and Attitude PS75-874051 Hold System (SAAHS) 2. APPLICABLE DOCUMENTS 2.1 Issues of Documents. Unless otherwise Specified herein, the following documents of the issue in effect on date of invitation for bids or request for proposal, form
12、a part of this specification to the extent specified herein. Electronic Equipment, Airborne, Gen- eral Specification for MIL-M-7793 MIL-T-18303 Meter, Time Totalizing Test Procedures; Preproduction, Acceptance, and Life for Aircraft Electronic Equipment; Format for MIL-N-18307 Nomenclature and Ident
13、ification for Electronic, Aeronautical and Aeronau- tical Ground Support Equipment MIL-A-85055 Specification for A-4M/AV-8B Bombing Set, Angle Rate AN/ASB-lg(V) MIL-W-85057 Weapon Delivery Computer for the Bombing Set, Angle Rate AN/ASB-19 (V) MIL-C-85058 Control Unit Subsystem for the Bomb- ing Set
14、, Angle? Rate AN/ASB-lg(V) MIL-T-85115 Tracker and Target Characteristics and Sensitivity Requirements of the Dual Mode Tracker for the Bombing Set, Angle Rate AN/ASB-lg(V) (U) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-8505bA 12 W 77777
15、0b 03b327b 3 m Naval Air Systems Command (Code Ident 30003) AS-419 7 SD-563-3-1 STANDARDS Military MIL-STD-109 MIL-STD-130 MIL-STD-704 MIL-STD-781 MIL-STD-810 Computer Set, Standard Airborne AN/AYK- 1407) Detail Specification for the Design of Model AV-8B Aircraft 4 b Quality Assurance Terms and Def
16、ini- tions Identification Marking of US Military Prope r ty Electric Power, Aircraft, Character- istics and Utilization of Reliability Test Exponential Distri- butions Environmental Test Methods for Aero- space- and Ground Equipment 2.1.1 Availability of Documents. Copies of specifications, stan- da
17、rds, drawings and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. 2.2 Other Publications. The following documents form a part of this specification to the extent specified
18、 herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. DRAWINGS Hughes Aircraft Company (Code Ident 82577) A- 4M 3366000-310 Wire List 3366000-350 Electrical Interface Data 3366020-100 Dual Mode Tracker 3366021-500 Installation Co
19、ntrol Drawing, Receiver- - Processor 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-8505bA 12 m 7999906 0363297 5 M 3366022-500 3366030-500 AV-8B 3366020-101 3366021-500 3366022-500 3366030-500 3366000-350 Installation Control Drawing, Signa
20、l Data Converter Installation Control Drawing, Heat Ex- changer Unit Dual Mode Tracker Installation Control Drawing, Receiver- Processor Installation Control Drawing, Signal Data Converter Installation Control Drawing, Heat Ex- changer Unit Electrical Interface Data (A-4M drawing applies to AV-8B on
21、ly in so far as required by Paragraph 3.4.5.3.7 Instrumen- tation Interface) SPECIFICATIONS McDonnell Douglas Corporation (Code Ident. 18355) MC A5232 AV-8B Avionics Multiplex Bus Design Speci- f ication 75 -870 105 Display Processor (Harrier) 74-870082 Navigation Set, Inertial AN/ASN-130 75 5875 O9
22、 O Wiring Diagram Basic Schematic AV-8B 75 5875900 Interface Control Document 3. REQUIREMENTS 3.1 Preproduction. Tlis specification makes provision for preproduc- tion testing. 3.2 First Article. When specified (see 6.2), the contractor shall furnish sample units(s) for first article inspection and
23、approval. 3.2.1 Parts and Materials. in accordance with the requirements of MIL-A-85055. Selection of parts and materials shall be 3.3 Design and Construction, The tracker shall conform with all the applicable requirements of MIL-A-85055 for design, construction and workmanship, except as otherwise
24、specified herein or the contract. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-8505bA 12 E 7747706 0363278 7 E 3.3.1 Physical Characteristics. The tracker shall have the physical characteristics specified herein. 3.3.1.1 Total Weight. The
25、total weight of the tracker, excluding cables, shall be a minimum consistent with good design and shall not exceed 85 pounds. 3.3.1.2 Dimensions. Dimensions of the tracker components shall be in accordance with Drawings 3366021-500, 3366022-500, and 3366030-500, as applicable. 3.3.2 Reliability. The
26、 contractor shall conduct a reliability pro- gram in accordance with MIL-A-85055, except as specified herein. 3.3.2.1 Operational Stability. The tracker shall operate with satis- factory performance, continuously or intermittently for a period of at least 500 hours without the necessity for readjust
27、ment of any controls which are inaccessible to the operator during normal use. 3.3.2.2 Operating Life. The tracker shall have a total operating life of 10,000 hours with reasonable servicing and replacement of parts. Parts requiring scheduled replacement shall be specified by the contractor, and app
28、roved by the procuring activity. / 3.3.2.3 Reliability in Mean-Time-Between-Failure (MTBF). The tracker, including any built-in-test provisions, shall have a specified (eo MTBF of 500 hours and a minimum acceptable (e,) MTBF of 250 hours when tested as specified herein. 3.3.2.4 Time Totalizing Meter
29、. Time totalizing meters shall be included on the tracker to provide an indication of cumulative operating time. The time totalizing meter shall be installed in a location directly visible without requiring removal of any connectors or opening the unit, and be in accordance with MIL-M-7793. The rang
30、e of themeters shall be O to 9,999 hours and they shall not be capable of being reset. 3.3.3 Cabling and Connectors. accordance with MIL-A-85055. The cabling and connectors shall be in 3.3.3.1 Telemetry Capability. A female test connector shall be provided which contains the necessary electrical out
31、puts to allow inter- 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-facing with a telemetry system for in-flight or laboratory evaluation of tracker performance. The monitored functions and signals shall be in accordance with the Electrical Interf
32、ace Data List, Drawing Installation Control Drawing, Signal Data Converter, Drawing 3366022-500. A con- nector cap shall be provided for use when the connector is not used. 3,3.4 Interchangeability. All Weapon Replaceable Assemblies (WRA) and Shop Replaceable Assemblies (SRA) shall be directly and c
33、ompletely interchangeable with respect to installation, performance, and construc- tion as required in MIL-A-85055. Reiterative harmonization adjustments shall not be required after replacement of SRAS, except for mechanical and electrical alignment of gimbal elements and vidicon focussing adjustmen
34、ts required for the Receiver-Processor. 3.3.5 Electromagnetic Compatibility. The tracker shall conform to MIL-A-85055. 3.3.5.1 Static Electricity. The tracker shall conform to the require- ments of MIL-A-85055 for static electricity. 3.3.5.2 Electromagnetic Interference (EMI). The tracker shall con-
35、 form to the requirements of MIL-A-85055 for EMI. 3.3.6 Maintainability Provisions. The Maintainability Program, built-in-test features, construction and packaging, provisions for test points, and other maintainability parameters shall conform to the maintainability requirements of MIL-A-85055. 3.3.
36、6.1 Fault Isolation Test (FIT). The tracker shall include a FIT capability, to be performed at the organizational level of maintenance. The FIT shall isolate 90 percent of tracker failures to the WRA level for replacement of the faulty WRA within the time-to-repair requirement of MIL-A-85055. 3.3.6.
37、2 Boresight Provisions. The tracker shall include provisions for mechanical alignmentlboresighting of Receiver-Processor gimbals and gimbal elements with respect to the reference mounting base. 3.3.7 Nomenclature, Nameplates and Identifications Marking. Nomencla- ture and serial number assignment, n
38、ameplate approval, and identifica- tion marking shall be in accordance with MIL-N-18307. Marking shall be in accordance with MIL-STD-130. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3.7.1 Serialization. Each SRA designed for normal intermedia
39、te level replacement shall have a permanent serial number. Serial numbers shall be applied at the final assembly of each SRA. In the event a unit is scrapped, the serial number shall not be reused. 3.3.8 Standard Condition. The standard conditions used to establish normal performance characteristics
40、 shall be as specified in MIL-A-85055. 3.3.9 Service Conditions. The tracker, while operating or non- operating, shall withstand the natural and induced environments as specified herein, including all logical adverse combinations, with repeated exposure to conditions having cumulative adverse effect
41、s. 3.3.9.1 Nonoperating Conditions. The tracker shall be capable of withstanding the temperature, humidity, vibration, and shock as shown in Table I without physical damage or subsequent degradation of perform- ance. 3.3.9.2 Operating Temperature-Altitude. The tracker shall meet the performance requ
42、irements of 3.4 and 3.5 when exposed to the temperature- altitude environments shown in Figure 1, as follows: a. The tracker shall be capable of continuous operation at the extreme limits of Figure 1, Curve A, Continuous operation is defined as indefinite operation within the extremes of Curve A. b.
43、 The tracker shall be capable of performing intermittent operations at the extreme limits of Figure 1, Curve B, and at Point 1. Intermittent operation of the tracker is defined as 45 minutes operation (any selected mode) within the limits of Curve A, followed by 12 minutes operation laser spot track
44、er (LST) (scan mode) at the upper temperature limit of Curve B, followed by 6 minutes transient operation at Point 1 (track mode) at 70C (sea level), followed by 12 minutes operation (any mode) at limits of Curve B (sea level). Thermal shutdown of the tracker is allowed while the intermittent high t
45、emperature condition exists. The high temperature recovery period shall not exceed 5 minutes after th,e temperature condition is returned to 45OC. c. The tracker shall be capable of performing intermittent . operations at the extreme high temperature limits of Figure 1, Curve C, without part failure
46、; but performance degradation may occur. Intermittent operation of the tracker is defined as in (b), except that the limits of 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-85056A 32 m 9977906 0363303 3 m O c I I 4 z . 0 B * i 44 zz N a G a
47、 N (3 a o c B 8 B 8 N (3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DMT MUX READY MISSION COMPUTER (MC) MULTIPLEXED BUS TO OTHER AVIONICS DUAL-MODE TRACKEF (DMT) r- -1 I I SIGNAL I I DATA I CONVERTER I I I (SOC) I I HEAT I I EXCHANGER UNIT I (HE
48、) 1 I I FIGURE 5. MC/ARBS Dual Mode Tracker Interface. (Applicable to AV-8B Aircraft) 26 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-85056A 32 W 9799406 0363337 O W Lock-on - TV tracker and servo mode command. Correlate - LST tracker and se
49、rvo mode command. Signal is true one-half computer cycle (25 milli- seconds (ms) after the tracker output correlate valid is true. Filter on - This signal commands the tracker filter on and off. .The timing is established in the computer software program. Roll reset - Servo mode command. Signal is true when commanded by the MC and causes the tracker platfo
