AN / alq - 172对策系统(CMS)

1。1(U) GENERAL:This SRD establishes the functional, performance, & verification requirements and the objectives specifically for the integration and installation of the Enhanced ALQ-172 and Low Band Jammer (LBJ) RF Countermeasures on to the AC-130U and MC-130H aircraft. The term "Enhanced ALQ-172" refers to the upgrade/replacement of the existing ALQ-172 High Band Line Replaceable Units (LRUs) with the ALQ-172(V)3 configured High Band LRUs. The term "Low Band Jammer" or "LBJ" refers to a SOF-common system, either the ALQ-172(V)3 or the ALQ-196. Hereafter, the term "integrated aircraft system" refers to the combined Enhanced ALQ-172 & LBJ aircraft modification.

1。2(U) IDENTIFICATION:This SRD establishes the installed performance requirements as derived from Addendum A to AFSOC ORD 006-87-I/IIIA R1 - Requirements for the AC-130U Enhanced Spectre Gunship and MAC SORD 005-83-IV B - Requirements for the MC-130H Combat Talon II. The SRD also identifies the employment & deployment environments, and constraints as they impact performance, supportability, system integrity, and system engineering management of the SOF aircraft.

1。3(U) APPLICATION:阶跃恢复二极管不能用于合同目的without supplemental information relating to the operational performance and interface requirements for the systems to be installed. Supplemental information defining operational performance and interface requirements for both the AC-130U and MC-130H aircraft are contained in the technical data packages provided as part of the IWSSP contract. Supplemental guidance for tracking and deriving lower level requirements definitions is identified within the applicable documents shown in Sections 2.1 and 2.2 or in the classified appendix to this SRD.

1。3。1(U) DEVIATIONS:Prior to contract award, prospective contractors are encouraged to submit cost effective changes, operationally suitable alternatives, and improvements to the requirements of this SRD to the acquisition activity. Incorporation will depend upon the merits of the proposed change and the needs of the program. After contract award, changes will be accomplished in accordance with the applicable contract specification change notice (SCN) procedures.

2。0 (U) APPLICABLE DOCUMENTS:The following additional documents form a part of this SRD to the extent specified herein. In the event of conflict between the requirements of this document and any other referenced document, the requirements of this document shall take precedence except as specifically provided for in the contract. All conflicts shall be brought to the attention of the procuring activity.

2。1(U) GOVERNMENT DOCUMENTS:This SRD and data on AC-130U and MC-130H aircraft performance and interface requirements contained in the IWSSP Technical Library shall apply.

（U）规格：

3.1.1（U）系统描述：The Enhanced ALQ-172 is an upgrade to the existing ALQ-172(V)1 on the AC-130U and MC-130H aircraft. This upgrade consists of upgrading LRUs 1, 3, 4, & 10 and replacing LRU 2 with LRUs of the ALQ-172(V)3 configuration. A description of these systems and nomenclature for the components are contained in ITTAV�s ALQ-172 Prime Item Functional Specification (PIFS). This document also includes the description of the ALQ-172(V)3 LBJ components. The Sander�s ALQ-196 LBJ PIFS provides a description of the system and nomenclature for the components. System installation design interfaces shall be per the requirements of Section 3.1.2 and the aircraft ICDs. The preliminary DIRCM installation data is provided as reference material for an on-going SOF C-130 modification program. The data on the AC-130H is provided as an example of an existing Enhanced ALQ-172 and ALQ-172(V)3 LBJ installation on a SOF C-130. If available, the data on the MC-130E will be provided as an example of the ALQ-196 LBJ installation on a SOF aircraft.

3.1.2（U）飞机集成要求：The integrated aircraft system shall meet all the requirements of this SRD and Appendix A.The integration of the Enhanced ALQ-172 and LBJ with the AC-130U and MC-130H aircraft shall not compromise their ability to safely accomplish all intended operational missions defined in their respective System Specifications. The terms "minimize changes" and "not significantly degrade" are used in this context throughout this SRD.

3。1。2。1(U) Aircraft Modification Requirements:The modification shall be designed to preclude failure of the modification and the surrounding aircraft structure. The integrated aircraft system shall minimize changes to aircraft performance, stability, and control due to modification weight, drag, shape, and location impacts. The modification shall not significantly degrade operation of any aircraft subsystem nor have its own performance significantly degraded by operation of any aircraft subsystem. The modification must withstand blast pressures from all Gunship ammunition variants.

3.1.2.1.1（u）现有系统的搬迁：Existing aircraft systems shall be relocated only to the extent necessary for the integrated aircraft system to meet the performance requirements of this SRD and Appendix A. The performance of any relocated system shall not be degraded below its current level.

3.1.2.2（U）计算机/航空电子接口定义：All ALQ-172 LRUs which are part of the Enhanced ALQ-172 and LBJ solution shall not be integrated to the existing avionics busses to any greater extent than the current ALQ-172(V)1. The LBJ shall not be integrated to a greater extent than is required to meet the requirements of this SRD, Appendix A, and the individual aircraft System Specifications. As a goal, the LBJ integration shouldl not cause the MC-130H�s aircraft Mission Computer Operational Flight Programs to be rewritten. Any proposed MC-130H mission computer OFP changes shall be subject to approval by the contracting officer. The system shall have the capability to be integrated with other defensive avionics using a data bus in the future. As a minimum, the integrated aircraft system shall maintain current aircraft display capabilities.

3。1。2。2。1(U) Data Bus Interface:安装后，增强的ALQ-172和LBJ应为满足远程终端要求的测试，重编程和仪器接口提供现成的访问。所有测试点均应在不拆卸模块或组件的情况下访问。无需使用卡扩展程序或其他设备即可访问所有LRU输入/输出测试点。

3.1.2.2.2（U）控制和辅助处理器：As a minimum, the LBJ processors shall have an average of 50 percent spare memory and 50 percent spare throughput. As a goal, the spare memory and throughput should both be 75 percent.

3.1.2.3.1（u）增强的ALQ-172和低频带干扰器安装：增强的ALQ-172和LBJ应按照本SRD的3.1.1＆3.1.2条的要求安装，同时最大化Jammer的性能。

3。1。2。3。2(U) LRU Mounting Provisions:All LRU mounts shall be designed to allow unambiguous installation to assure proper orientation with respect to the aircraft axes. The mounting provisions shall preclude installation of improper part numbered LRUs/radomes and to prevent mixing LRUs/radomes if they are unique to a given location (e.g., left different from right). LRUs mounted internal to the aircraft shall utilize quick disconnect captive fasteners. Vibration isolators shall consider the proximity to other LRUs and aircraft structure away space to provide sufficient separation distance in all dimensions. A means to secure external cables shall be provided to allow flight with external LRUs removed.

3。1。2。4(U) Thermal Interfaces:The thermal interface, location of the LRUs, and heat dissipation methods for the installed Enhanced ALQ-172 and LBJ shall be chosen to minimize the heat rise in the aircraft and the thermal impacts to other aircraft systems and occupants. The configuration of the aircraft environmental control system shall be considered in the location of the LRUs. The current aircraft cooling system shall not be modified to increase its capacity. If new cooling fans are used, their as installed noise level shall not exceed 85 dB.

3.1.2.5.1（u）功率质量：The AC-130U and MC-130H power quality is in accordance with MIL-E-7894 characteristics as modified for the transient conditions shown in the table below. The integrated aircraft system shall function in a non-degraded manner through these transient conditions.

3。1。2。5。2(U) Maximum AC Loads:All ALQ-172 LRUs which are part of the integrated aircraft system shall utilize the 400 Hz electrical power consistent with the existing ALQ-172(V)1 installations on the AC-130U and the MC-130H aircraft. The ALQ-196 LBJ, if used as part of the integrated aircraft system, shall utilize the 400 Hz electrical power from the Left and/or Right AC buses only. The maximum AC load of any generator shall not exceed 50% of its rated capacity during normal electrical system operations under any condition below:

3. (U) Maximum DC Loads:The Enhanced ALQ-172 and LBJ to aircraft 28V DC interface(s) shall not cause the source�s rated capacity to be exceeded.

3。1。2。6(U) On-board Vulnerability:LBJ antenna installation shall provide sufficient isolation with respect to its own components to meet its operational requirements. LBJ installation shall prevent interference to/from other onboard subsystems from direct or skin conducted radiation.

3.1.2.7（U）系统性能：The LBJ installation shall meet the requirements of this SRD including Appendix A.

3。1。2。7。1(U) LBJ Field of View:The LBJ installation shall minimize fuselage, wing, tail or other external structure blockage of the LBJ coverage.

3.1.2.8.1（U）泄漏率：Any penetration of the pressure vessel shall not cause the leakage rate to exceed the limits as defined in T.O. 1C-130H-2-10 for the MC-130H or Rockwell Acceptance Test Procedure LL509100 for the AC-130U.

3。1。2。8。2(U) Proof Pressure:经过空中车辆修改后，加压封闭式应能够承受相应飞机系统规格中定义的证明压力水平。

3.1.2.9.1（u）集成电子战（EW）总线：增强的ALQ-172和LBJ的集成应提供与Avionics Bus集成的能力，以进行未来的EW巴士升级。

3.1.2.9.2（u）单孔和连续波（CW）对策：增强的ALQ-172和LBJ的集成应提供作为将来的Monopulse和CW对策升级的技术发电机所需的所有接口。

3。1。2。9。3(U) Consolidated EW Display:The installation of the Enhanced ALQ-172 and LBJ shall preserve sufficient console space at the Electronic Warfare (EW) Officer�s Crew Station and provide the interfaces required for the future installation of a consolidated EW display subsystem.

3。1。3(U) Service Life:The integrated aircraft system, excluding the Group B, shall have a service life of 30,000 hours using the AC-130U and MC-130H System Specification defined mission profiles. New, modified, and affected structure shall be designed to achieve the desired service life. Installation of the Enhanced ALQ-172 and LBJ shall not shorten the service lives of the AC-130U and MC-130H aircraft.

3。2(U) Characteristics：The integrated aircraft system shall be designed, maintained, and operated to provide a safe, durable, damage tolerant, fault tolerant, fatigue resistant, and corrosion resistant platform that functions to meet the intended missions and withstands external and induced environments to which the air vehicle may be exposed.

3.2.2.1（u）系统安全：安全隐患分类按照MIL-STD-882 shall be eliminated or controlled to an acceptable level of risk. Selection of appropriate integrated aircraft system equipment design features to adequately control or eliminate hazards shall be given precedence over corrective or protective feature which increase the integrated aircraft system�s complexity.

3.2.2.1.1（u）危险材料：The integrated aircraft system, components, and support items shall be designed to minimize the introduction of hazardous or pollutant materials to operation/support personnel and the environment (DOSS 4210.15).

3。2。2。1。2(U) Radiation Hazards:Radiation hazards associated with the installed Enhanced ALQ-172 and LBJ shall be identified and mitigated IAW MIL-STD-882 and AFOSH Std 48-9.

3。2。2。2(U) Crashworthiness:Crashworthiness (placement and design of components) shall be considered in the safety features for personnel survival in the event of a crash. Internally or externally mounted equipment shall be designed to withstand crash loads without constituting a personal or safety hazard outside those defined above. Crash loads shall be as specified in 3.2.4.2.2. The equipment and mounting shall be designed to retain the equipment in place under crash conditions. Operations personnel and maintenance factors shall be included in the selection of safety design features.

3。2。3。1(U) Reliability:关键故障的平均间隔时间(MTBCF)佛r the LBJ including the install shall be no less than 100 hours. The Enhanced ALQ-172 and LBJ installation shall not have any adverse impacts on the reliability of other aircraft systems. As a goal, the MTBCF should be greater than 120 hours. MTBCF as used in this SRD means the average time between all hardware and software critical failures occurring during mission and non-mission time. Critical failures occur when mission essential systems become inoperable or operate outside their specified range of performance.

3.2.3.2（u）可维护性：The Mean Repair Time (MRT) for the LBJ aircraft modification shall not exceed 2.0 hours. The maximum time to repair the modification shall be 6.0 hours or less. The Enhanced ALQ-172 and LBJ installation shall not have any adverse impacts on the maintainability of other aircraft systems. MRT as used in this SRD means the total on-equipment repair time to return the integrated aircraft system to full operational capability.

3.2.3.2.1（u）诊断：The installation of the Enhanced ALQ-172 and LBJ shall provide ready physical access to all integrated diagnostics data through the existing MLV connector. The LBJ integrated diagnostics shall have the ability to unambiguously isolate to the faulty unit 95 percent of the time; the built in test false alarm rate shall be less than 5 percent. As a minimum, the LBJ�s diagnostics shall be capable of identifying 95 percent of all critical faults with an objective of 100 percent. The Enhanced ALQ-172 and LBJ integration shall be capable of downloading maintenance data and performing flight line reprogramming via the existing MLV connector.

3.2.3.2.1.1（u）重编程性：LBJ应为100％飞行线重编程。发射极标识（EID）和操作飞行计划（OFP）应在3.0小时或更短时间内进行飞行线重编程。

3.2.3.2.1.2（U）支持设备：支持设备（SE）的选择应最大化现有SE的使用以及在货架项目中使用商业的使用。维护设备所需的特殊工具和测试设备的多样性和数量应最低。当需要特殊工具时，应提供工具。如果需要，应提供电缆扩展程序。LBJ安装不得需要新的SE进行组织级别的拆卸和安装。

3。2。3。3(U) Levels of Maintenance:All integrated aircraft system components should be repairable under the current ALQ-172 three level maintenance concept. Routine periodic maintenance inspection intervals shall not be impacted. Ease of access for inspection and removal/replacement shall be provided. All Enhanced ALQ-172 and LBJ LRUs and spares shall provide a 100 percent common configuration and be interchangeable with like LRUs on similarly equipped SOF aircraft.

3.2.3.3.1（u）组织维护：Organizational maintenance consists of fault detection & isolation, faulty component removal & replacement, and system checkout. Maintenance personnel shall use Built in Test (BIT) to facilitate LBJ maintenance and verify equipment condition and operability. Adjustments and alignments shall not be required after LRU replacement. The equipment installation shall be designed to permit modular replacement without removal of adjacent modules. The integrated aircraft system installation shall not interfere with removal/replacement of other aircraft systems.

3。2。3。4。1(U) Environment:The integrated aircraft system shall be capable of being maintained in worldwide conditions to include nuclear, chemical, or biological environments by personnel wearing the required protective gear.

3.2.3.4.2（u）人力：集成的飞机系统不得对用户或USSOCOM提出额外的人力或人员要求。集成的飞机系统不需要对部队结构的支撑段进行定性或定量更改。

3。2。4(U) Environmental Conditions:The integrated aircraft system shall be designed and constructed to resist any individual or probable combination of the service condition demands specified herein without mechanical or electrical damage or performance degradation. Unless otherwise specified, these requirements shall apply for storage, non-operation, operating, stand by, test, and transmit.

3。2。4。1(U) Natural Environment。The modifications shall meet the following requirements of this SRD while operating in the worldwide conditions.

3。2。4。1。1(U) Lightning Protection:LBJ的安装不应增加飞机对雷击的固有敏感性，也不应对飞机，其他设备或人员构成危害。在飞机结构外部的子系统应受到保护，以防止第5.4段和MIL-STD-464的图1所定义的闪电的直接影响。集成的飞机系统应旨在防止由于降水静态充电而引起的干扰。

3.2.4.1.2（U）温度和高度：The integrated aircraft system shall meet the requirements of this SRD while operating in temperature and altitude conditions consistent with the equipment qualifications and the individual aircraft environments.

3。2。4。1。3(U) Water Intrusion and Rain Erosion:The integrated aircraft system shall not be damaged when subjected to blowing rain and shall operate without degradation during a TBD rain rate throughout the aircraft operational flight envelope..

3.2.4.1.4（u）湿度：The integrated aircraft system shall be capable of withstanding high and low humidity environmental conditions.

3.2.4.1.5（u）盐氛围：综合飞机系统应当提供operations without degraded performance in salt atmosphere.

3.2.4.1.6（u）沙子和灰尘：The integrated aircraft system shall be capable of withstanding the sand and dust environment for ground operations in close proximity to aircraft operating over unpaved surfaces without degraded performance.

3。2。4。2(U) Induced Environment:The integrated aircraft system shall meet the requirements of this SRD while operating in its induced environment. Specifically, the man-made (non-threat) induced environmental conditions in which the air vehicle and all its components must function are as follows:

3。2。4。2。1(U) Vibration:在AC-130U和MC-130H系统规范中确定的整个任务概况中遇到的诱导振动水平时，集成的飞机系统应适当运行。综合飞机系统应符合所有性能要求，同时受到功能振动水平。该系统应在暴露于耐力水平振动后满足所有性能要求。TFD 94-1644数据对于AC-130U来说是最坏的情况，它们也应适用于MC-130H集成飞机系统设计。螺旋桨和枪声振动应被视为以基本和谐波频率为中心的窄带随机激发。

3。2。4。2。2(U) Load Factors：The installation of the Enhanced ALQ-172 and LBJ shall:

3.2.4.2.3（u）声学噪声：The integrated aircraft system shall operate properly when subjected to the acoustical noise levels encountered throughout the mission profiles identified in the AC-130U and MC-130H System Specifications. Rockwell Report NA-94-1790 provides the worst case levels which shall apply to both the AC-130U and MC-130H integrated aircraft system designs.

3.2.4.2.4（u）Gunblast：For the AC-130U only, externally mounted LRUs shall withstand the pressure pulses from normal operational firing combinations of the 25mm, 40mm, and 105mm guns at the location on the aircraft appropriate to the mountings the LRU. The magnitude of the gunblast shall be that of the pointing and firing rate of each gun that produces the maximum pressure pulses, or resonant conditions, within or on the LRU. The possible combinations of firings are: 25mm & 40 mm; 25mm & 105mm; 40mm & 105mm; and each singly (25mm, 40mm, 105mm).

3.2.4.2.5（u）流体：The integrated aircraft system shall be capable of withstanding exposure to the following fluids without permanent damage or degradation to performance.

3。2。4。2。6。1(U) Ground Conditions：Externally mounted LRUs shall be installed in locations that minimize the impact of foreign objects associated with takeoff, landing, or ground operations while maximizing coverage.

3.2.4.2.6.2（u）鸟类fod：The integrated aircraft system shall be fully operational after impact with a 4.5 ounce bird and shall survive (or indicate a failure if appropriate) after impact with a 4 pound bird at maximum cruise of 325 knots true air speed. Survival shall be defined to be economically repairable and not a hazard to the aircraft, other equipment and personnel.

3。2。4。2。7。1(U) Electromagnetic Compatibility (EMC):增强的ALQ-172和LBJ安装应旨在满足MIL-STD-464段5.2、5.7.1、5.7.2、5.8、5.10至5.10至5.10.2和5.10.4和5.10.4的要求。

3。2。4。2。7。2(U) Radio Frequency (RF) Compatibility。Subsystems shall exhibit RF compatibility among all antenna-connected equipment, subject to mission requirements. Blanking interfaces shall be provided to and from other on-board systems as required.

3.2.4.2.8（u）气流场：System components which alter the aircraft outer mold line shall not create an unacceptable aerodynamic environment. Flow fields adjacent to the chaff and flare dispensers shall not be impacted with regard to the performance of the dispensers. Paratrooper deployment and retrieval or Combat Talon MC-130H shall not be adversely impacted. The resulting aerodynamic environment shall not shorten the life and/or the reliability of the AC-130U gun seals.

4。1(U) GENERAL:This section specifies qualification and acceptance requirements, that verify the system level requirements of Section 3 have been met. Section 4 to Appendix A of this SRD specifies the verification methods for its Section 3 requirements.

4。1。1(U) Responsibility for Inspection, Analysis, and Testing:除非另有说明，否则承包商负责合同中指定的所有检查，分析，演示和测试要求的所有检查。采购活动保留目睹其选择验证的权利。

4。1。1。1(U) Records:质量管理系统应建立和需要维护，一种识别，收集，索引，填充，存储，维护，检索和处置相关质量文档和记录，并根据最佳商业实践的适当方式进行维护。

4.1.2（U）验证方法：Verification of system requirements of Section 3 shall be accomplished by inspection, analysis, demonstration, test, or process control (as defined below), or a combination thereof.

a. Inspection。Inspection is defined as a visual verification that the system (including system documentation) complies with specification requirements.

b. Analysis。Analysis is defined as verification that specification requirements have been met by technical evaluation of equations, charts, reduced data, etc. This does not include the normal analysis of data generated during ground or flight testing.

c. Demonstration。Demonstration is a verification method whereby success is determined by observation. Also included in this category are tests that require simple quantitative measurements such as dimensions, time to perform, etc.

d. Test。Test is defined as verification of the specification requirements through the application of established test procedures within specified environmental conditions and subsequent compliance confirmation through analysis of the data generated. This requirement may be fulfilled by submission of data which demonstrates the required test has been successfully completed.

e。过程控制。：过程控制is the application of best commercial practices to eliminate product variation and the assignable causes in order to prevent recurrence.

4。1。3(U) Quality Conformance Inspections:系统，组件和测试机构应受到授权政府人员的检查，这些人员将获得确定与此SRD一致的必要信息和设施。质量证据及其记录应按照适用合同的要求维护。

4.1.4（u）测试文章配置：The configuration of each test article shall be identified by individual parts lists. All verification shall be accomplished using production configuration hardware and manufacturing processes.

4.2（U）过程中验证测量：The following system level in-process verification requirements shall be successfully accomplished prior to their associated demonstration milestone as specified on the Contractor generated Integrated Master Plan/Schedule (IMP/IMS). Technical criteria and supporting technical performance measure (TPM) tracking parameters, including acceptable tolerances are specified in the Enhanced ALQ-172 and Low Band Jammer & ALR-69 Integration IMP/IMS.

4.2.1（u）接口控制文档（ICD）：Development of required interface control documents shall be verified by a combination of inspection, analysis, demonstration, and/or test of the internal and external interfaces. ICDs are considered complete when the required interface verification procedures are defined and documented.

4.2.2（U）逻辑支持分析（LSA）集成：Design integration of user supportability requirements shall be verified by analysis of updates to AC-130H ALQ-172 LSA data and MC-130E ALQ-196 LSA data (if applicable) during development. This data shall be updated during the latter phase of development. The supportability requirements of 3.2.2 and 3.2.3 & subsections shall be demonstrated during operational tests and evaluations.

4。2。3(U) Antenna Pattern and Isolation Test:在初步设计审查之前，应通过测试来验证拟议的AC-130U和MC-130H LBJ天线安装位置的天线模式和分离。天线隔离水平应与IMP/IMS中确定的适当的TPM（出口标准）一致。

4.2.4（U）干扰有效性分析和/或测试：在进行批判性设计审查之前，应针对拟议的AC-130U和MC-130H增强ALQ-172和LBJ安装的干扰效率进行干扰有效性和/或硬件实验室测试。保真度威胁模型/模拟器。分析和/或HITL有效性结果应与IMP/IMS中确定的适当TPM（退出标准）一致。

4.2.5（u）飞行前安装的性能测试：Prior to the first test flight of the modified aircraft, the effective radiated power, installed sensitivity, and direction finding accuracy for the AC-130U and MC-130H installations should be verified by testing.

4。3(U) Quality Conformance:本节概述了第3节，附录A和附录B集成飞机系统要求的验证方法。表4.3是一个样本交叉参考矩阵参考矩阵。

6。0 (U) Notes:This section contains information of a general or explanatory nature, and no requirements appear herein. It contains non-contractually binding information designed to assist in determining the applicability of the SRD and the selection of appropriate type, grade, or class of the configuration item.

1. (U) Proprietary Data:第2.2节中ALQ-196上引用的数据源是专有的。可以通过联系来获得并发布文件的访问：

6.3.2（U）增强的ALQ-172和低频带干扰器安装基线：The baseline installation of the Enhanced ALQ-172 and LBJ on the AC-130U and MC-130H for configuration control is defined as the configuration after successful completion of the Physical Configuration Audit (PCA).

6。3。3(U) Physical Configuration Audit:政府和承包商将进行主成分分析to examine the "as-built" configuration of the Enhanced ALQ-172 and LBJ installation against its design documentation.

6。3。4(U) Configuration Control:The integrating contractor shall extend configuration control to cover hardware, except for Group B, and documentation. The Contractor shall maintain traceability and currency of the baseline and consistency among all project documentation and system equipment.

(U)After the baseline has been established, all contractor generated changes including those that impact form, fit and function (F3), require formal approval by the Government. The Government configuration control process will ensure that all system design changes are integrated into maintenance and training documentation whether or not the change impacts F3. The Contractor shall submit Design Change Notices (DCN) to the Government prior to implementation of changes into the Logistics Support Analysis Record (LSAR) Parts Master File and the provisioning technical documentation package.