A Study of Attrition in the Domestic General Aviation Fleet.
Abstract
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1976
- Accession Number
- ADA023271
Entities
People
- James K. Rocks