Accession Number:

AD0850265

Title:

Reducing Takeoff and Landing Distances by Using the Airlift Effect on the Wings,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1968-07-19

Pagination or Media Count:

14.0

Abstract:

A survey of the use of the air-lift effect on foreign aircraft, and results of Czech studies on the subject are presented. The air-lift effect is considered especially appropriate for aircraft with jet or by-pass jet engines, where the ratio of motor thrust to aircraft weight is greater than 0.35, and with a relative wing profile width less than 12. These conditions are found to be best fulfilled in supersonic fighter planes where the relative wing profile width is less than 4. So far the air-lift effect has been used mainly in military planes in which air is extracted from the jet propulsion engine now there is a tendency to apply the air-lift for aerodynamic boundary layer and flow control. Author

Subject Categories:

  • Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE