Investigation of Turbine of Mark 25 Torpedo Power Plant with Five Nozzle Designs

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Description

Efficiency investigations were made on the two-stage turbine from a Mark 25 aerial torpedo to determine the performance of the unit with five different turbine nozzles. The output of the turbine blades was computed by analyzing the windage and mechanical-friction losses of the unit. A method was developed for measuring the change in turbine clearances with changed operating conditions. The turbine was found to be most efficient with a cast nozzle having a sharp-edged inlet to the nine nozzle ports.

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Hoyt, Jack W. & Kottas, Harry October 8, 1947.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 160 times . More information about this report can be viewed below.

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  • Main Title: Investigation of Turbine of Mark 25 Torpedo Power Plant with Five Nozzle Designs
  • Series Title: NACA Research Memorandums

Description

Efficiency investigations were made on the two-stage turbine from a Mark 25 aerial torpedo to determine the performance of the unit with five different turbine nozzles. The output of the turbine blades was computed by analyzing the windage and mechanical-friction losses of the unit. A method was developed for measuring the change in turbine clearances with changed operating conditions. The turbine was found to be most efficient with a cast nozzle having a sharp-edged inlet to the nine nozzle ports.

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  • URL: http://hdl.handle.net/2060/20030063986 External Link
  • Report No.: NACA-RM-E7I03
  • Center for AeroSpace Information Number: 20030063986
  • Archival Resource Key: ark:/67531/metadc63818

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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  • October 8, 1947

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

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  • Jan. 31, 2017, 11:55 a.m.

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Hoyt, Jack W. & Kottas, Harry. Investigation of Turbine of Mark 25 Torpedo Power Plant with Five Nozzle Designs, report, October 8, 1947; (digital.library.unt.edu/ark:/67531/metadc63818/: accessed July 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.