Advanced Engine Study Program

TITLE AND SUBTITLE:
Advanced Engine Study Program

AUTHOR(S):
A.I. Masters, D.E. Galler, T.F. Denman, R.A. Shied, J.R. Black,
A.R. Fierstein, G.L. Clark, and B.R. Branstrom

REPORT DATE:
June 1993

FUNDING NUMBERS:
WU-593-12-11
C-NAS3-23858

PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES):
Pratt & Whitney
Government Engines & Space Propulsion
P.O. Box 109600
West Palm Beach, Florida 33410-9600

PERFORMING ORGANIZATION REPORT NUMBER:
E-7909

SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES):
National Aeronautics and Space Administration
Lewis Research Center
Cleveland, Ohio 44135-3191

REPORT TYPE AND DATES COVERED:
Final Contractor Report

SPONSORING/MONITORING AGENCY REPORT NUMBER:
NASA CR-187217

SUPPLEMENTARY NOTES:
Project Manager, G. Paul Richter, Space Propulsion Technology Division, (216) 977-7537.

ABSTRACT:
A design and analysis study was conducted to provide advanced engine descriptions and parametric data for space transfer vehicles. The study was based on an advanced oxygen/hydrogen engine in the 7,500 to 50,000 lbf thrust range. Emphasis was placed on defining requirements for high-performance engines capable of achieving reliable and versatile operation in a space environment. Four variations on the expander cycle were compared, and the advantages and disadvantages of each were assessed. Parametric weight, envelope, and performance data were generated over a range of 7,500 to 50,000 lb thrust and a wide range of chamber pressure and nozzle expansion ratio.

SUBJECT TERMS:
Rocket performance; Parametric rocket data; Expander cycle engines;
Oxygen/hydrogen engines; Space propulsion; Liquid propellant rockets

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