Aging Avionics in Military Aircraft (Compass Series) by National Research Council, Division on Engineering and

By National Research Council, Division on Engineering and Physical Sciences, Commission on Engineering and Technical Systems, Air Force Science and Technology Board, Committee on Aging Avionics in Military Aircraft

Extending the lifetime of an airframe has confirmed tough and expensive. Extending the lifetime of an avionics procedure, even though, is among the most important and hard points of extending overall airplane approach lifetimes. serious parts exit of construction or develop into out of date, and plenty of former providers of military-grade parts have long gone into bankruptcy. From 1986 to 1996, for instance, the proportion of discontinued military/aerospace digital units approximately doubled- from 7.5 percentage to 13.5 percentage. additionally, legacy avionics structures, that have been designed to satisfy specifications of the previous, more often than not lack the complete strength to accomplish new missions, meet new threats, or practice good within the new information-intensive battlefield environments.

As the legacy plane fleet a while, avionics platforms turns into progressively more tough to aid and continue. while the army as soon as supplied a wide and ecocnomic marketplace for the electronics undefined, the army electronics marketplace this day constitutes lower than 1 percentage of the industrial industry. hence, the army needs to more and more depend upon advertisement off-the-shelf (COTS) applied sciences for its avionics and software program. even if COTS goods are normally less costly than related goods designed specifically to fulfill army requirements, the technology-refresh cycle for COTS is sometimes 18 months or much less, which exacerbates the obsolescence challenge for plane whose lifetimes are measured in a long time. the quick refresh cycle is pushed as a rule via the super advances in computers, which contain an expanding percent of avionics content.

In reaction to a request through the Assistant Secretary of the Air strength for Acquisition, the nationwide study Council convened the Committee on getting older Avionics in army plane, below the auspices of the Air strength technological know-how and expertise Board, to behavior this research. This document summarizes the following:

- assemble details from DoD, different executive corporations, and business resources at the prestige of, and matters surrounding, the getting older avionics challenge. this could comprise briefings from and discussions with senior executives and armed forces acquisition and help group of workers. part of this task should still comprise a evaluate of Air strength Materiel Command's research on diminishing production resources to suggest how one can mitigate avionics obsolescence.

- offer ideas for brand spanking new techniques and leading edge strategies to enhance administration of getting older avionics, with the target of assisting the Air strength to augment supportability and alternative of getting older and obsolescing avionics and reduce linked existence cycle bills. touch upon the department of expertise accountability among DoD and industry.

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Most of these activities are being done independently with little or no coordination. ” 21 USN USAF X X Air Force Research Laboratory (AFRL) DMSMS Program AFRL Manufacturing Technology Electronics Parts Obsolescence Initiative Naval Aviation Systems Team X Aeronautical Systems Center Affordable Combat Avionics Office X X X X X X X X X X X X X X X DMS/ OP DLA Shared Data Warehouse X X Legacy Upgrade X X Government Industry Data Exchange Program X X X Open Systems Technology Defense Logistics Agency (DLA) Generalized Emulation of Microcircuits X Diminishing Manufacturing Sources Material Shortages (DMSMS) Teaming Group X Defense Microelectronics Activity X X X Defense Advanced Research Projects Agency (DARPA) Information Technology Office (ITO) Joint Technical Architecture (JTA) X X X Open Systems Joint Task Force (OS-JTF) OSD Process Initiative Joint Strike Fighter X Activity Organization Policy Making Current DMS/OP Activities TABLE 3-1 X X X X X X Tools X X X X Reengineering 22 Industry USA USN X University of Maryland Computer-Aided Life-Cycle Engineering (CALCE) Center X X National Center for Advanced Technologies X X Software Engineering Institute X X X X National Rotorcraft Technology Center X X X X SMART Part X X X X X X X Transition Analysis of Component Technology X X X X X X X Boeing Bold Stroke and Open Avionics Systems Integration Study X X X X X Avionics-Component Obsolescence Management X Lockheed Martin Proven Path and Systems, Technologies, Architecture, and Acquisition Reform Study Rotary Open-System Architecture X Aviation Applied-Technology Directorate X X X X Modernization Through Spares/Continuous Technology-Refresh Program Aviation Electronic Combat Office Diminishing Manufacturing Technology Center Navy Helicopter Modernization Program X X X X X X X X X 23 24 sharing information on DMS/OP material shortages among DoD and industry groups to reduce redundancies and improve effectiveness.

The system can be scaled in capability by incrementally adding or deleting modules of functionality. Components These implementations evolve with technology. Processors Board-level products These standards establish an architectural framework and enable interoperability. Software tools Interfaces (hardware and software) Software language 2 5 30 Time to obsolescence (years) FIGURE 4-3 Architectural framework adopted by the Open System Joint Task Force. Source: Logan, 2000. 33 ANALYSIS OF THE CURRENT SITUATION • The system can be maintained or upgraded by selective replacement of elements without impacting other elements.

5 percent of the total. There is every reason to believe that these percentages will increase in the future. Although the total number of unique part styles is decreasing as levels of circuit integration increase, the percentage of discontinued parts is not expected to decrease at the same rate. A significant portion of funds allocated to each weapon system is being used to contend with the DMS/ OP problem. S. Air Force, 2000a). It is important to stress that these funds are required simply to maintain current functions and do not buy any additional capability.

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