Core Avionics Master Plan - NAVAIR - U.S. Navy

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Core Avionics Master Plan 2011 Appendix A-62. Funded Enhancements and Potential Pursuits.The program office has obtained FY10/11 funding to replace existing ALR-67(V)2with the newer ALR-67(V)3 in lieu of pursuing continued DMSMS solutions.Processor Upgrades. (2015) The AN/APR-39A/B(V)2 is being upgraded forsustainability and to meet emerging DECM requirements. The AN/APR-39C(V)2processor upgrade will replace seven circuit card assemblies with two modernizedprocessor cards to increase the processing speed and emitter library memory size. TheAN/APR-39C(V)2 will also incorporate an AN/AAQ-24(V)25 Directed InfraredCountermeasure (DIRCM) interface for improved pilot awareness and systemmanagement. Further planned improvements (i.e. AN/APR-39D(V)2) will include:replacing the analog-tuned receiver with a digital receiver and replacing the spiralantennas with dual-pole spiral antennas which will increase the probability of detectionof pulse-Doppler radars, cross-pole/circular polarization and improve accuracy of Angleof-Arrival(AOA). These enhancements will provide for the operational viability of theAN/APR-39 well into the 21 st century and preclude impending DiminishingManufacturing Sources (DMS). The AN/APR-39, with technology upgrades, is wellpositioned to be the ASE central processor for an Advanced Missile Warning System(AMWS).D. Missile Protection.1. Current capabilities:The AN/ALQ-144 Omni-Directional IR Jammer is pre-emptive jammer to protectrotary wing platforms from early generation IR seeking missiles. The Navy and MarineCorps have made a decision to retain this system on aircraft where installed while otherIRCM efforts mature.Deployed on helicopters and transport aircraft, the AN/AAR-47 Missile WarningSystem (MWS) warns of threat missile approach by detecting ultraviolet radiationassociated with the rocket motor and automatically initiates flare ejection. The MWSprovides attacking missile declaration and sector direction finding and interfaces directlyto the AN/ALE-39/47 countermeasures dispenser. Detection algorithms are used todiscriminate against non-approaching radiation sources. The AN/AAR-47 is a passive,MWS consisting of four sensor assemblies housed in two or more sensor domes, acentral processing unit, and a control indicator. Recent development of AAR-47B(V)2increase the probability of missile warning detection in harsh operating environments.As the first fielding of a directed energy weapon system, the AN/AAQ-24(V)25Department of Navy (DoN) Large Aircraft Infrared Countermeasure (DoN LAIRCM)program provides a laser-based, infrared countermeasure (IRCM) solution to increasethe survivability of Marine Corps rotary wing assault aircraft against Infrared (IR) guidedthreats. The DoN LAIRCM system is an upgrade to the Air Force's AN/AAQ-24 LAIRCMmissile warning system developed by the USAF. DoN LAIRCM integrates 2-color IRmissile warning sensors with the improved Guardian Laser Transmitter Assemblies. TheDoN LAIRCM system is designed to provide CH-53E (lead), CH-46E and CH-53Dplatforms with self-protection against IR guided surface-to-air missiles by detecting theirsignatures and defeating them with laser jamming. The DoN LAIRCM systemA-6 Self Protection 8
Core Avionics Master Plan 2011 Appendix A-6successfully demonstrated Early Operational Capability in November 2009 and wasapproved for limited fielding of 32 systems on CH-53E aircraft in support of OperationsOIF and OEF. DoN LAIRCM capable CH-53Es are currently flying operational missionsin-theater. Due to size, weight and power restrictions, this system is not beingconsidered for smaller platforms. The Army CIRCM program development is beingconducted in close cooperation with the PMA-272 program office since the CIRCM willbe procured for inclusion onto Navy and Marine Corps aircraft with the MV-22 as thelead platform for the Navy's efforts.2. Funded Enhancements and Potential Pursuits.Hostile Fire Indication (HFI). (2010) The program office is upgrading the AAR-47B(V)2 software that will give the system a Hostile Fire Indication (HFI) capability. Thiswill provide aircrew with indication of type 2 weapons fire in vicinity and will be displayedon the APR-39 pilot display. This effort is in combined operational testing as of summer2010 and is expected to deploy (software push) beginning in the Fall of 2010.Joint and Allied Threat Awareness System (JATAS). (2015) The next generationMWS will be the Joint and Allied Threat Awareness System (JATAS) which commenceda competitive Technology Development phase in FY10 with an expected downselect toa single vendor in FY11. JATAS, in its final form, will be a two-color IR sensor that willprovide integrated missile warning, laser warning, and HFI for Assault Support aviation.Intended host platforms include the MV-22B, CH-53K, AH-1Z, UH-1Y, MH-60R/S. Thesystem will be developed with Modular Open Systems Architecture (MOSA) to enableupgrade, technology refresh and integration with other platforms. Per OSD guidance,the Navy is the lead Service and is working closely with the program office of the Army(Program Directorate ASE) in the development of JATAS capabilities and interfaces tomeet inter-Service transfers of this system onto Army platforms.E. Infrared Protection.1. Current capabilities: The AN/ALQ-157 infrared jammer deployed on CH-46Eand CH53D aircraft, will also remain in place until future system installation (seeAN/ALQ-24(V)25 below) is complete.2. Funded Enhancements and Potential Pursuits.Multi Function Threat Detector (MFTD). (2010) Completed testing of this multispectral,IR-based sensor that was implemented as a risk reduction effort to JATAS.This project developed and demonstrated a high speed mid-wave IR detectortechnology in a form factor compatible with the existing AN/AAR-47 MWS. Thisprogram is expected to be handed off to Army and Air Force program offices forpossible inclusion into legacy AAR-57 and AVR-2B equipment sets, providing an IRadjunctcapability for HFI and MW.LAIRCM Enhancements (2010) Future enhancements to the DoN LAIRCMAN/AAQ-24(V)25 include upgrades to the laser system for increased reliability andpower levels and a system upgrade to the processor and sensors to achieve HFI. Ingeneral, other S&T efforts include miniaturizing components, increasing spectraldomination of expendables, improving reliability in lasers and pointer/trackers(miniaturization) and decreasing life cycle costs and complexity of IR sensors (such asA-6 Self Protection 9
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Core Avionics Master Plan - NAVAIR - U.S. Navy

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