Created: | 5/5/2021 7:25:46 PM |
Modified: | 5/26/2021 1:49:56 PM |
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Tag | Value |
id | JSSG-2005-MP6-3.2.1.2.4.4 |
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text | [a] The Avionic subsystem shall support the TF/TA function to provide the necessary information to safely fly the aircraft, both in manual and automatic modes of operation, at specified clearances of ___1___; over terrain varying from flat to hilly as defined in ___2___ ; shall provide safe control over isolated obstacles such as radio and TV towers; and, shall provide for safe and accurate flight throughout the speed range of ___3___ in conditions varying from straight and level flight to turns up to ___4___ bank angle and ___5___ turn rate. [b] The TF/TA system shall be sufficiently robust to perform fault detection and exclusion functions needed to satisfy false alarm requirements specified in __6___ and to initiate a safety fly-up when fault exclusion cannot be accomplished in a timely manner. The TF/TA system shall exhibit statistics for critical parameters as specified in Table __7___. [c] The avionic subsystem shall provide absolute altitude immediately below the air vehicle to an accuracy of ___8___ and be capable of TF flight using this measurement when flying over low reflectivity terrain and/or water. [d] The avionic subsystem shall provide TF consistent with the emission modes of operation and shall be capable of TF under conditions where no forward-looking sensing is used for time intervals as long as ___9___ . The avionic subsystem shall provide safe TF altitude advisories to the crew when operating under these conditions. [e] The Avionic subsystem shall provide commands and display information for manual and automatic control of the aircraft in the vertical plane (terrain following) and provide commands and display information for manual control of the aircraft in the horizontal plane (terrain avoidance). [f] The Avionic subsystem shall provide the data necessary, with sufficient accuracy and timeliness, to provide let-down commands that enable the aircraft to safely descend from high altitude, either to begin TF/TA operations or after flying over a peak in TF flight, to the selected clearance plane and/or lowest safe altitude with undershoot limited to ___10___ in either automatic or manual flight modes. [g] The Avionic subsystem shall meet the TF/TA requirements when operating in weather conditions corresponding to a snow fall rate of ___11___ or a rain fall rate of ___12___ except when weather conditions also result in the formation of an area of frozen rain known as the “Bright Band Phenomenon.” Under the latter conditions the performance requirements shall be ___13___. [h] The TF/TA performance requirements shall be met when operating in an EW environment as defined in ___14___ . The EW environment includes external sources as well as ownship sources. [i] The Avionic subsystem shall provide threat information integrated with the TF/TA display to be used by the crew for manual and automatic control of the aircraft in the vertical plane to the performance levels specified in the allocated requirements of Table ___ TF/TA Performance. Steering and lateral flight path information shall be provided for the crew to manually command the flight control function for control of the aircraft in the horizontal plane. Terrain data shall be provided within ___15___ laterally of the aircraft’s planned flight path. [j] The Avionic subsystem shall provide the capability to meet the requirements of the ___16___ and the allocated requirements of Table ___ TF/TA Performance. |
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Property | Value |
isFinalSpecialization: | 0 |
Object | Type | Connection | Direction | Notes |
«testCase» 4.2.1.2.4.4 Verification of Terrain Following/Terrain Avoidance/Threat Avoidance | TestCase | Dependency | From |