A STUDY OF ATTRITION IN THE DOMESTIC GENERAL AVIATION FLEET

About 85% of the aircraft (a/c) added to the domestic fleet since 1947 are still registered. About 2% of the fleet is de-registered every year, but this average attrition rate is declining. Annual attrition, about 0.2% among new a/c, rises to 2.5% among a/c 15 to 20 years old and declines to 1% for older a/c, 30% of which are gone. Exports and imports of used a/c, accidents, irregularities and theft are negligible. About 10% of the registered fleet is inactive. Usage of single-engine a/c shifts from instructional and rental to business and personal as the a/c ages; multi-engine use is largely executive, business and air taxi. 70% of the active a/c are based at 10% of the nation's 13,000 airports. About 7% of the fleet is in operation if conditions are generally flyable. Attrition is largely a function of age; year-specific, type-specific and year-of-manufacture-specific rate differences are minor. A projection methodology employing a constructed, Standard Attrition Rate, is developed and its use described. (Author)

• Corporate Authors:

  Optimum Computer Systems Incorporated

  1133 15th Street, NW
  Washington, DC  United States  20005
• Authors:
  • Rocks, J K
• Publication Date: 1976-4

Media Info

• Pagination: 85 p.

Subject/Index Terms

• TRT Terms: Aircraft; Civil aircraft; Civil aviation; Distributions (Statistics); Factor analysis; Life expectancy; Mathematical models; Mathematical prediction; Rates; Turnover; Utilization
• Uncontrolled Terms: Attrition
• Old TRIS Terms: Geographical distribution
• Subject Areas: Aviation; Data and Information Technology; Research; Society; Vehicles and Equipment;

Filing Info

• Accession Number: 00133130
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA-AVP-75-14
• Contract Numbers: DOT-FA74WAI-496
• Files: NTIS
• Created Date: Jun 23 2002 12:00AM