Author: United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher:
Published: 1970
Total Pages: 966
ISBN-13:
DOWNLOAD EBOOK →Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher:
Published: 1970
Total Pages: 962
ISBN-13:
DOWNLOAD EBOOK →Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher:
Published: 1970
Total Pages: 956
ISBN-13:
DOWNLOAD EBOOK →Author: Douglas E. Harrington
Publisher:
Published: 1974
Total Pages: 44
ISBN-13:
DOWNLOAD EBOOK →Plug nozzles with two types of 40-spoke noise suppressor were tested at free-stream Mach numbers from 0 to 0.45 and over a range of nozzle pressure ratios from 1.5 to 4.0. In addition, an unsuppressed plug nozzle and a Supersonic Tunnel Association nozzle were also tested to provide baseline levels of thrust performance. The unsuppressed plug nozzle had an efficiency of 98 percent at an assumed takeoff pressure ratio of 3.0 and at Mach 0.36. At the same condition the suppressor nozzles had efficiencies of approximately 83.5 percent.