Experimental Investigation of Diffuser Pressure-Ratio Control With Shock-Positioning Limit on 28-Inch Ram-Jet Engine

Dunbar, William R.; Wentworth, Carl B.; Crowl, Robert J.

Experimental Investigation of Diffuser Pressure-Ratio Control With Shock-Positioning Limit on 28-Inch Ram-Jet Engine

Primary view of object titled 'Experimental Investigation of Diffuser Pressure-Ratio Control With Shock-Positioning Limit on 28-Inch Ram-Jet Engine'.

PDF Version Also Available for Download.

Description

The performance of a control system designed for variable thrust applications was determined in an altitude free-jet facility at various Mach numbers, altitudes and angles of attack for a wide range of engine operation. The results are presented as transient response characteristics for step disturbances in fuel flow and stability characteristics as a function of control constants and engine operating conditions. The results indicate that the control is capable of successful operation over the range of conditions tested, although variations in engine gains preclude optimum response characteristics at all conditions with fixed control constants.

Physical Description

72 p. : ill.

Creation Information

Dunbar, William R.; Wentworth, Carl B. & Crowl, Robert J. January 15, 1957.

Context

This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 99 times. More information about this report can be viewed below.

Authors

Originator

Lewis Flight Propulsion Laboratory National Advisory Committee for Aeronautics. Lewis Flight Propulsion Lab

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Titles

Main Title: Experimental Investigation of Diffuser Pressure-Ratio Control With Shock-Positioning Limit on 28-Inch Ram-Jet Engine
Series Title: NACA Research Memorandums

Description

The performance of a control system designed for variable thrust applications was determined in an altitude free-jet facility at various Mach numbers, altitudes and angles of attack for a wide range of engine operation. The results are presented as transient response characteristics for step disturbances in fuel flow and stability characteristics as a function of control constants and engine operating conditions. The results indicate that the control is capable of successful operation over the range of conditions tested, although variations in engine gains preclude optimum response characteristics at all conditions with fixed control constants.

Physical Description

72 p. : ill.

Subjects

Keywords

Language

English

Item Type

Report

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

Accession or Local Control No: 93R18648
URL: http://hdl.handle.net/2060/19930089358 External Link
Report No.: NACA-RM-E56F26
Center for AeroSpace Information Number: 19930089358
Archival Resource Key: ark:/67531/metadc62697

Collections

This report is part of the following collections of related materials.

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).

Technical Report Archive and Image Library

The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format.

What responsibilities do I have when using this report?

Creation Date

January 15, 1957

Added to The UNT Digital Library

Nov. 17, 2011, 10:13 p.m.

Description Last Updated

Jan. 9, 2019, 1:36 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0

Past 30 days: 1

Total Uses: 99

Dunbar, William R.; Wentworth, Carl B. & Crowl, Robert J. Experimental Investigation of Diffuser Pressure-Ratio Control With Shock-Positioning Limit on 28-Inch Ram-Jet Engine, report, January 15, 1957; (https://digital.library.unt.edu/ark:/67531/metadc62697/: accessed July 10, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

Experimental Investigation of Diffuser Pressure-Ratio Control With Shock-Positioning Limit on 28-Inch Ram-Jet Engine

Description

Physical Description

Creation Information

Context

Who

Authors

Originator

Provided By

UNT Libraries Government Documents Department

Contact Us

What

Titles

Description

Physical Description

Subjects

Keywords

Language

Item Type

Identifier

Collections

National Advisory Committee for Aeronautics Collection

Technical Report Archive and Image Library

Digital Files

When

Creation Date

Added to The UNT Digital Library

Description Last Updated

Usage Statistics

Interact With This Report

Search Inside

Start Reading

Citations, Rights, Re-Use

International Image Interoperability Framework

Print / Share

Links for Robots

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats