In addition, for the Boeing C-17 aircraft, the Air Force is undertaking "satellite communications upgrades for increased coverage and throughput speeds along with mitigation of obsolescence issues due to satellite service dates" and "upgrades of legacy aircraft avionics to capabilities of current commercial production aircraft, large area displays, improved weather radars," AFLCMC/WLM said. "The Statement of Requirements for the Replacement Head Up Display (RHUD) development delivery order requested 3000 hours MTBF at maturity." The Elbit Systems RHUD for the C-17 has a Projector Unit (PU) and a Computer Unit (CU) that "displays symbols and real-world conformal imagery over an increased field of view to include the capability to display threat warnings and quadrant, supports two independently selectable video inputs for autonomous landing growth requirements, provides aircraft Electronic Bore-sighting capability, provides improved reliability with a Mean Time between Failure (MTBF) of 3,000 operating hours," according to AFLCMC/WLM.Ī GEC Avionics brochure issued in 1987 for the C-17 HUD said that the HUD has an MTBF of 7,000 operating hours, but, "based on current performance, the actual MTBF is between 1,600 and 1,800 hours (lower than predicted)," according to AFLCMC/WLM. "The LHUD is specific to the C-17 aircraft." "BAE Systems has notified the Air Force that the ability to repair the C-17 Legacy Head-Up Display (LHUD) is limited due to unavailability of piece-parts supplied by sub-vendors required to make the LHUD repairs," according to AFLCMC/WLM. "To continue support of C-17 aircraft avionics, options available to mitigate the DMSMS issue include lifetime buy of the piece parts required for repairs, re-engineering of the next higher assembly, or a complete redesign of the part."ĪFLCMC/WLM is undertaking a nearly $286 million C-17 Replacement Head-Up Display (RHUD) program with Elbit Systems of America to replace the 1980s-era C-17 HUD by the defunct U.K.-based GEC Avionics, which became BAE Systems Avionics and is now part of Leonardo. The Air Force C-17 contract with Boeing provides "for notification when a supplier projects repair of a C-17 part will no longer be supportable," according to AFLCMC/WLM. Piece part vendors change product lines due to the continual evolution of the electronics industry to support modern electronics systems in production with great capability." "The C-17 program has been notified on most avionics systems the availability of electronic piece parts are already or will become no longer available to make repairs to avionics boxes. You may select the license of your choice."The C-17 aircraft was last produced in 2015 and with it most of the unique avionics boxes are no longer in production nor available to be purchased," according to the AFLCMC C-17 program office (AFLCMC/WLM) at Robins AFB, Ga.
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