Accession Number:

ADP006965

Title:

Drag Reduction: An Industrial Challenge,

Descriptive Note:

Corporate Author:

AIRBUS INDUSTRIE BLAGNAC (FRANCE)

Personal Author(s):

Report Date:

1992-03-01

Pagination or Media Count:

15.0

Abstract:

Over the last few decades and particularly since the 70s, all civil aircraft manufacturers have made great efforts to reduce aircraft drag. The long term aim of this operation is to reduce the specific consumption of aircraft, the potential reduction of over 10 would represent savings of several million dollars for the airlines fig. 1. The successive fuel crises fig. 2 have increased the need for developing new technologies to be applied on the new aircraft retrofits, however, also have their uses. Estimating the drag of a transport aircraft through calculation or wind tunnel tests must come as close as possible to the value obtained in flight. Forecast errors to the order of 1 following wind tunnelflight transposition lead to technical and financial penalties and entail vast efforts to bring the values obtained during flight down to acceptable levels guaranteed by the aircraft manufacturers to their customer airlines. The technologies or concepts that could significantly reduce aircraft drag often have a different reduction potential. This reduction must be clearly shown to appear in the high speed tests using large-scale models 110 scale.

Subject Categories:

  • Fluid Mechanics
  • Transport Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE