Accession Number:

AD0234315

Title:

THE EFFECTIVENESS OF BASE-BLEED IN REDUCING DRAG OF BOAT-TAILED BODIES AT SUPERSONIC VELOCITIES

Descriptive Note:

Memorandum rept.

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1960-01-01

Pagination or Media Count:

10.0

Abstract:

The effectiveness of reducing the drag of a square-based projectile by bleeding air into a hollow in the base has been established by means of wind tunnel tests. This report describes both a brief free-flight experimental test and some theoretical calculations made to determine the effect of base-bleed on a boat-tailed projectile. There was no decrease in drag.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE