Misplaced Pages

#92907

18-444: The PS-05/A works in the 8–10 GHz band and has 1 kW energy output (> 10 kW maximum output). The radar is capable of detecting, locating, identifying and automatically tracking multiple targets in the upper and lower spheres, on the ground and sea or in the air, in all weather conditions. It consists of four line replaceable units and all LRUs can be replaced in 30 minutes. Gripen operator Hungarian Air Force reported

36-782: A 4 m sized target it now detects an 0.4 m target. During exercises in November 2015 between the Gripen fighters of the Royal Thai Air Force and the Chinese Shenyang J-11 As, the latter were detected at more than 160 km. Is an upgraded version of the Mark 3 available since 2015. It extends Air-to-Air operating range by introducing a new Air-to-Air mode which increases acquisition range by 100% at low altitudes and 40% at high altitudes. This radar mode

54-584: A 73 kg power liquid-cooled, travelling wave tube power amplifier/transmitter unit, a 32 kg software-controlled exciter/receiver unit and a 23 kg signal/data processor. Radar modes: a) Air-to-Air modes: b) Air-to-Surface modes: All information is processed by a Mercury Computer Systems RACE/PPC setup, which has replaced the Ericsson D80 of Batch 1-2 Gripens. By 2015 MK3 detection range for Air-to-Air high altitude had improved by 80% compared to earlier, distances where MK3 previously detected

72-512: A door or hatchway. There are also requirements for flammability , unwanted radio emissions, resistance to damage from fungus , static electricity , heat , pressure , humidity , condensation drips, vibration , radiation , and other environmental measurements. LRUs may be designed to ARINC 700-series standards. The form factor of LRUs comply to ARINC Standards, ARINC 404 and ARINC 600. LRUs are also defined by manufacturers like Airbus and Boeing and by various military organizations. In

90-542: A further upgrade of the Mark 4 radar with a new AESA antenna instead of the mechanically scanned antenna. Development of the Mark 5 radar started out under the Saab Ericsson NORA (Not Only a RAdar) programme, and has been underway for several years, including test flying aboard a specially retained Saab JA 37 Viggen testbed. The benefits of the NORA concept were the provision of improved long-range tracking as

108-540: A new unnamed AESA radar intended for fighter aircraft, utilising the back end of the PS-05/A. 28 April 2020 SAAB reported that it had test flown an GaN based AESA of the PS-05/A radar family. Line replaceable unit A line-replaceable unit ( LRU ), lower line-replaceable unit ( LLRU ), line-replaceable component ( LRC ), or line-replaceable item ( LRI ) is a modular component of an airplane , ship or spacecraft (or any other manufactured device) that

126-473: A result of the combination of longer detection range and electronically steered beam control, dominant battlespace awareness, track identification through non-co-operative target recognition, low probability of intercept and enhanced jamming capabilities. The AESA radar programme was directly linked to MIDAS (Multifunction Integrated Defensive Avionics System), which will also add electronic attack and advanced datalinking capabilities. In October 2015 Saab revealed

144-597: Is also useful for detection of targets with very low RCS, and the acquisition range in the legacy Air-to-Air modes is also improved by 20–50%. This version also enhances Air-to-Surface capabilities to modern standards with two new SAR modes with 3-metre and sub-metre resolution, enhances GMTI/GMTT (SMTI/GSPTT) modes and adds a new Sea Search mode designed to detect small boats at an increased acquisition range by >100%. The ECCM capabilities and passive operation are significantly improved, and improves tactical and technical evaluation of analysing radar behaviour. Was intended to be

162-434: Is common for LRU trays to have standardized connections for rapid mounting, cooling air, power, and grounding. The mounting hardware is often manually removable standard-screw-detent quick-release fittings. Front-mounted electrical connectors are often jacks for ring-locked cannon plugs that can be removed and replaced (R&R) without tools. Specifications also define the supporting tools necessary to remove and replace

180-651: Is designed to be replaced by a technician at a backshop . Repair at backshops is known as field-level maintenance or intermediate-level (I-level) maintenance . SRUs are similar in nature to line-replaceable units (LRUs), but rather than being complete functional units, represent component functions, such as circuit card assemblies, of a larger LRU. SRUs are typically assigned logistics control numbers (LCNs) or work unit codes (WUCs) to manage logistics operations. SRUs can be stocked to allow for quick remove and replace (R&R) operations on their parent LRUs or LLRUs, while also allowing for more extended repair operations at

198-530: Is designed to be replaced quickly at an operating location (1st line). The different lines (distances) are essential for logistics planning and operation. An LRU is usually a sealed unit such as a radio or other auxiliary equipment. LRUs are typically assigned logistics control numbers (LCNs) or work unit codes (WUCs) to manage logistics operations. LRUs can improve maintenance operations, because they can be stocked and replaced quickly from distributed nearby on-site inventories (sometimes mobile storage), restoring

SECTION 10

#1732790490093

216-517: Is no hierarchy difference between child levels; the only hierarchical separation is parent versus child. LRUs are designed to specifications to assure that they can be interchanged, especially if they are from different manufacturers. Usually a class of LRUs will have coordinated environmental specifications (i.e. temperature, condensation, etc.). However, each particular LRU will also have detailed specifications describing its function, tray size, tray connectors, attachment points, weight ranges, etc. It

234-499: The LRU has failed and has been removed from the end item for repair. An LLRU is part of an LRU, and which can be removed and replaced at the field level to restore its LRU to an operational ready condition. As an LRU is considered the 'parent', the LLRU is considered a 'child'. An LLRU can also be a child of a child--that is, an LLRU being a component of a higher-level LLRU. However, there

252-538: The PS-05 radar set has proved reliable so far, both in domestic service and NATO flight exercises in Corsica . This version of the PS-05/A radar has been available since 2005. It is capable of detecting a fighter aircraft from 120 km distance and can see road traffic and count ships at anchor in a harbour at 70 km. The radar weighs 156 kg made up of a 25 kg 60 cm diameter antenna/platform assembly,

270-522: The military, electronic LRUs are typically designed to interface according to data bus standards such as MIL-STD-1553 . On the International Space Station , LRUs are referred to as Orbit Replaceable Units . 7. https://apps.dtic.mil/sti/tr/pdf/ADA268674.pdf Shop-replaceable unit A shop-replaceable unit ( SRU ) or shop-replaceable component ( SRC ) is a modular component of an airplane , ship or spacecraft that

288-475: The mobile systems to service, while the failed (unserviceable) LRU is undergoing complicated repair and overhaul actions in other support locations (lines). Because of their modularity, LRUs also can contribute reducing system costs and increase quality, by centralizing development across different models of vehicles. LRUs are similar in nature to shop-replaceable units (SRUs), but rather than being component functions, represent complete functional units. While

306-469: The term LRU has been in use for decades, MIL-PRF-49506, Notice 1 of 18 Jan 05, the Performance Spec for Logistics Management Information defines an LRU as: An LRU is an essential support item which is removed and replaced at the field level to restore the end item to an operational ready condition. Conversely, a non-LRU is a part, component, or assembly used in the repair of an LRU / LLRU, when

324-418: The unit. Many require no tools, or a standard-sized Frearson screwdriver . Frearson is specified for some vehicles and many marine systems because Frearson screws keep their mating screwdriver from camming out, and the same screwdriver can be used on many sizes of screws. Most LRUs also have handles, and specific requirements for their bulk and weight. LRUs typically need to be "transportable" and fit through

#92907