Accession Number : ADA115725

Title :   Analysis of R&M Technology Improvement Rationale for Maintainability Index Models.

Descriptive Note : Final rept.,


Personal Author(s) : Kovatch,Dennis H ; Mueller,Robert W ; Crady,Bishop M ; Duperre,Donald ; Webman,Kenneth Ira

PDF Url : ADA115725

Report Date : Oct 1980

Pagination or Media Count : 90

Abstract : This study is a follow-on to several previous studies funded by the Naval Air Systems Command for development of Maintainability Index Models. The report deals specifically with the term R&M Technology Improvement Factor (TIF) as used in the Maintainability Index Model (MIM) described in DTIC documents AD A 084627 and AD A 090563. The MIM R&M TIF value describes the percentage improvement (or degradation) which can be expected for a given new notional fighter/attack aircraft design. The MIM statistically derives a predicted value for maintenance-manhours-per-flight-hour (MMH-FH) based on prior aircraft performance using design parameters such as vehicle weight or speed. The percentage difference between the statistical prediction and a contractor's submission is the R&M TIF. This report describes the justification, and the rationale for determining the validity, or the reasonableness, of TIF's presented in a new weapons system design proposal.

Descriptors :   *Aircraft maintenance, *Naval procurement, *Aeronautical engineering, *Mathematical models, Systems analysis, Maintainability, Contracts, Quality assurance, Test and evaluation, Performance(Engineering), Requirements, Repair, Manhours, Flight testing, Fighter aircraft, Attack aircraft, Naval aircraft, Statistical data, Tables(Data)

Subject Categories : Attack and Fighter Aircraft
      Operations Research
      Logistics, Military Facilities and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE