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National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.




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Investigation of Intake Ducts or a High Speed Subsonic Jet-Propelled Airplane.


ADA800556

Publication Date 1947
Personal Author Cohen, H. N.
Page Count 36
Abstract Effects of roughness, size, and constructional features on efficiency and pressure loss are checked in two intake ducts of different area. Results indicate that larger internal passages increase efficiency. Poor finishing may decrease efficiency by as much as 50%, while spoilers may increase duct pressure los by 700%. Splitter vanes across duct, to insure rigidity, increase pressure loss by about 50%.
Keywords
  • Ducts
  • Jet aircraft
  • High speed
  • Investigation
  • Induction systems
  • Efficiency
  • Ati-005292
  • Ati collection
Source Agency
  • Non Paid ADAS
Corporate Authors National Aeronautics and Space Administration, Hampton, VA. Langley Research Center.
Document Type Technical Report
Title Note Memorandum rept.
NTIS Issue Number 200919
Investigation of Intake Ducts or a High Speed Subsonic Jet-Propelled Airplane.
Investigation of Intake Ducts or a High Speed Subsonic Jet-Propelled Airplane.
ADA800556

  • Ducts
  • Jet aircraft
  • High speed
  • Investigation
  • Induction systems
  • Efficiency
  • Ati-005292
  • Ati collection
  • Non Paid ADAS
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