THE EFFECTIVENESS OF BASE-BLEED IN REDUCING DRAG OF BOAT-TAILED BODIES AT SUPERSONIC VELOCITIES
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
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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.
- Fluid Mechanics