Accession Number : ADP006025

Title :   The Increased Time and Cost of Development: Causes and (Some) Remedies,

Corporate Author : NORTHROP CORP HAWTHORNE CA AIRCRAFT DIV

Personal Author(s) : Gallagher, Joseph T.

Report Date : SEP 1987

Pagination or Media Count : 9

Abstract : This paper contains a discussion of the increased time and cost of development required for air vehicles. Concurrently, methods of reducing time and cost are examined. The evolution of air vehicle development is presented to provide the background surrounding technological advances. The increased time and cost associated with those advances are discussed in relation to methods of gaining time and cost reductions. In the last forty years, new military fighter aircraft have grown increasingly more sophisticated in response to new or anticipated enemy threats. Growth in aircraft capability has coincided with advancements in technologies, including propulsion, aerodynamic design, control systems, structural materials, and avionics. The greater complexity in the aircraft involved in full-scale engineering programs has complicated the design analysis and test processes. A full-scale development program, as a precursor to production, must not only evolve a design which meets the defined performance requirements, but one which is capable of being produced at acceptable cost using established production processes. Recognition of the increasing burden of operating and support costs for military aircraft has resulted in a concentration of focus on requirements for supportability in the aircraft design. This is reflected in stringent reliability and maintainability requirements. The high cost of today's aircraft has caused the imposition of longer service life requirements with a resultant emphasis on structural integrity and fatigue life. The effect of these new thrusts on the development process is to complete the design, analytical, and test processes.

Descriptors :   *AIRCRAFT, *COST ANALYSIS, AERODYNAMICS, AVIONICS, CONSTRUCTION MATERIALS, CONTROL SYSTEMS, ENEMY, ENGINEERING, FATIGUE LIFE, FIGHTER AIRCRAFT, HIGH COSTS, LIFE EXPECTANCY(SERVICE LIFE), LONG LIFE, MAINTAINABILITY, MILITARY AIRCRAFT, PERFORMANCE(ENGINEERING), PRECURSORS, PRODUCTION, REDUCTION, RELIABILITY, REQUIREMENTS, STRUCTURAL PROPERTIES, TEST METHODS, THREATS.

Subject Categories : Aircraft
      Economics and Cost Analysis

Distribution Statement : APPROVED FOR PUBLIC RELEASE