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Low Speed Wind Tunnel Test Of An Unpowered High Speed Stoppable Rotor Concept In Fixed Wing Mode by Lance%2c Michael B.
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1NASA Technical Reports Server (NTRS) 19910008720: Low-Speed Wind-Tunnel Test Of An Unpowered High-Speed Stoppable Rotor Concept In Fixed-Wing Mode
By NASA Technical Reports Server (NTRS)
An experimental investigation of the M85, a High Speed Rotor Concept, was conducted at the NASA Langley 14 x 22 foot Subsonic Tunnel, assisted by NASA-Ames. An unpowered 1/5 scale model of the XH-59A helicopter fuselage with a large circular hub fairing, two rotor blades, and a shaft fairing was used as a baseline configuration. The M85 is a rotor wing hybrid aircraft design, and the model was tested with the rotor blade in the fixed wing mode. Assessments were made of the aerodynamic characteristics of various model rotor configurations. Variation in configurations were produced by changing the rotor blade sweep angle and the blade chord length. The most favorable M85 configuration tested included wide chord blades at 0 deg sweep, and it attained a system lift to drag ratio of 8.4.
“NASA Technical Reports Server (NTRS) 19910008720: Low-Speed Wind-Tunnel Test Of An Unpowered High-Speed Stoppable Rotor Concept In Fixed-Wing Mode” Metadata:
- Title: ➤ NASA Technical Reports Server (NTRS) 19910008720: Low-Speed Wind-Tunnel Test Of An Unpowered High-Speed Stoppable Rotor Concept In Fixed-Wing Mode
- Author: ➤ NASA Technical Reports Server (NTRS)
- Language: English
“NASA Technical Reports Server (NTRS) 19910008720: Low-Speed Wind-Tunnel Test Of An Unpowered High-Speed Stoppable Rotor Concept In Fixed-Wing Mode” Subjects and Themes:
- Subjects: ➤ NASA Technical Reports Server (NTRS) - AIRCRAFT DESIGN - HELICOPTER PERFORMANCE - ROTOR AERODYNAMICS - WIND TUNNEL MODELS - WIND TUNNEL TESTS - FAIRINGS - FIXED WINGS - FUSELAGES - LIFT DRAG RATIO - PITCH (INCLINATION) - SHAFTS (MACHINE ELEMENTS) - SUBSONIC WIND TUNNELS - SWEEP ANGLE - Lance, Michael B. - Sung, Daniel Y. - Stroub, Robert H.
Edition Identifiers:
- Internet Archive ID: NASA_NTRS_Archive_19910008720
Downloads Information:
The book is available for download in "texts" format, the size of the file-s is: 52.09 Mbs, the file-s for this book were downloaded 77 times, the file-s went public at Thu Sep 29 2016.
Available formats:
Abbyy GZ - Animated GIF - Archive BitTorrent - DjVuTXT - Djvu XML - JPEG Thumb - Metadata - Scandata - Single Page Processed JP2 ZIP - Text PDF -
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- Internet Archive: Details
- Internet Archive Link: Downloads
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2Low-speed Wind-tunnel Test Of An Unpowered High-speed Stoppable Rotor Concept In Fixed-wing Mode
By Lance, Michael B., Sung, Daniel Y. and Stroub, Robert H
An experimental investigation of the M85, a High Speed Rotor Concept, was conducted at the NASA Langley 14 x 22 foot Subsonic Tunnel, assisted by NASA-Ames. An unpowered 1/5 scale model of the XH-59A helicopter fuselage with a large circular hub fairing, two rotor blades, and a shaft fairing was used as a baseline configuration. The M85 is a rotor wing hybrid aircraft design, and the model was tested with the rotor blade in the fixed wing mode. Assessments were made of the aerodynamic characteristics of various model rotor configurations. Variation in configurations were produced by changing the rotor blade sweep angle and the blade chord length. The most favorable M85 configuration tested included wide chord blades at 0 deg sweep, and it attained a system lift to drag ratio of 8.4.
“Low-speed Wind-tunnel Test Of An Unpowered High-speed Stoppable Rotor Concept In Fixed-wing Mode” Metadata:
- Title: ➤ Low-speed Wind-tunnel Test Of An Unpowered High-speed Stoppable Rotor Concept In Fixed-wing Mode
- Authors: Lance, Michael B.Sung, Daniel Y.Stroub, Robert H
- Language: English
“Low-speed Wind-tunnel Test Of An Unpowered High-speed Stoppable Rotor Concept In Fixed-wing Mode” Subjects and Themes:
- Subjects: ➤ ANOMALIES - CRYOGENICS - EXTERNAL TANKS - INFRARED SCANNERS - NOMOGRAPHS - SPACE SHUTTLES - DAMAGE - DEBRIS - HIGH SPEED PHOTOGRAPHY - INSPECTION - LAUNCHING - SPACE SHUTTLE MISSIONS - SPACE TRANSPORTATION SYSTEM FLIGHTS - COMPUTER PROGRAMS
Edition Identifiers:
- Internet Archive ID: nasa_techdoc_19910008720
Downloads Information:
The book is available for download in "texts" format, the size of the file-s is: 14.28 Mbs, the file-s for this book were downloaded 315 times, the file-s went public at Mon Jul 26 2010.
Available formats:
Abbyy GZ - Animated GIF - Archive BitTorrent - DjVu - DjVuTXT - Djvu XML - Item Tile - Metadata - Scandata - Single Page Processed JP2 ZIP - Text PDF -
Related Links:
- Whefi.com: Download
- Whefi.com: Review - Coverage
- Internet Archive: Details
- Internet Archive Link: Downloads
Online Marketplaces
Find Low-speed Wind-tunnel Test Of An Unpowered High-speed Stoppable Rotor Concept In Fixed-wing Mode at online marketplaces:
- Amazon: Audiable, Kindle and printed editions.
- Ebay: New & used books.
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