NDLI: Full scale technology demonstration of a modern counterrotating unducted fan engine concept. engine test

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Full scale technology demonstration of a modern counterrotating unducted fan engine concept. engine test

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1987
Description	The Unducted Fan (UDF) engine is an innovative aircraft engine concept based on an ungeared, counterrotating, unducted, ultra-high-bypass turbofan configuration. This engine is being developed to provide a high thrust-to-weight ratio power plant with exceptional fuel efficiency for subsonic aircraft application. This report covers the successful ground testing of this engine. A test program exceeding 100-hr duration was completed, in which all the major goals were achieved. The following accomplishments were demonstrated: (1) full thrust (25,000 lb); (2) full counterrotating rotor speeds (1393+ rpm); (3) low specific fuel consumption (less than 0.24 lb/hr/lb); (4) new composite fan design; (5) counterrotation of structures, turbines, and fan blades; (6) control system; (7) actuation system; and (8) reverse thrust.
File Size	10440910
Page Count	346
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19900000733
Archival Resource Key	ark:/13960/t3wt3k765
Language	English
Publisher Date	1987-12-01
Access Restriction	Open
Subject Keyword	Aircraft Propulsion And Power Ducted Fans Engine Design Bypass Ratio Aircraft Engines Engine Tests Counter Rotation Fan Blades Ground Tests Prop-fan Technology Engine Control Turbofan Engines Combustion Efficiency Thrust Thrust-weight Ratio Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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