Accession Number:

AD0384856

Title:

ADVANCED AERODYNAMIC SPIKE CONFIGURATIONS. VOLUME II. HOT-FIRING INVESTIGATIONS: 1. BASIC PERFORMANCE VS ALTITUDE AND SECONDARY FLOW; 2. PERFORMANCE IN SLIPSTREAM; 3. LIQUID (N2O4) SIDE INJECTION TVC

Descriptive Note:

Final rept. 1 Jul 64-28 Feb 67

Corporate Author:

ROCKETDYNE CANOGA PARK CA

Personal Author(s):

Report Date:

1967-09-01

Pagination or Media Count:

506.0

Abstract:

Three hot-firing aerodynamic spike nozzle programs are described. One program had as its objective to obtain a large background of parametric hot- firing aerospike performance data. Performance data were obtained over a range of pressure ratio from approximately 350 down to 22. Thirty 8-second each duration firings, 10 at near sea level conditions and 20 over a range of high pressure ratio, were conducted. Secondary flowrate was varied from zero to 5 percent of primary flowrate and supplied by a gas generator. Fifty-seven firings of 1 minute each duration were accomplished. Still air nozzle efficiency was very high and significant performance improvement was obtained with the addition of secondary flow. Nozzle performance was relatively unaffected by slipstream in the nozzle operating region of practical interest for booster engine application.

Subject Categories:

  • Rocket Engines
  • Liquid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE