THE EFFECTS OF BASE BLEED AND SUSTAINER ROCKET NOZZLE DIAMETER AND LOCATION ON THE BASE DRAG OF A BODY OF REVOLUTION WITH CONCENTRIC BOOST AND SUSTAINER ROCKET NOZZLES

摘要

A concentric arrangement of boost and sustainer rocket nozzles has been investigated to determine the effects of base bleed and the effects of sustainer nozzle diameter and relative longitudinal position on the base drag of the body during sustainer operation. The results of the investigation indicate that the jet-on base drag of a body can be significantly reduced by the use of base bleed and nozzle arrangement, and that the jet-on base drag is a function of the jet thrust.