Props” for McDonnell Douglas: The Unducted Fan Projects That Never Took Off
Propfan - Wikipedia
File:UDF-cross-section.png - Wikimedia Commons
Advanced turboprop (ATP) engines. Schematic images of a an unducted fan... | Download Scientific Diagram
Propfan Engine with GB for 3D printer - YouTube
Evolutionary Trail Of The Open-Fan Engine | Aviation Week Network
Boeing 727 UDF (Unducted Fan) engine. | FSX screenshot by Ga… | Flickr
The Ultra High Bypass Engine
Cheap fuel killed propfan concepts decades ago. Can CFM's revived concept endure? | Analysis | Flight Global
Popular Mechanics - Testing a GE36 Unducted Fan (UDF) engine, or propfan, on a Boeing 727 in the 1980s. | Facebook
Propfan - Wikipedia
Propfan - Wikipedia
Propfan Power: The Story of the Unducted Fan Engine – Airways
Variations of Jet Engines
Jet engine - Turboprops, propfans, and unducted fan engines | Britannica
Props” for McDonnell Douglas: The Unducted Fan Projects That Never Took Off
Commercial-Engine OEMs Detail Emissions Work | Air Transport News: Aviation International News
The UDF: A Great Idea That Suffered From Bad Timing And Image
GE and Safran tout new 'open rotor' engine future for sustainable aviation | The Seattle Times
TIL there's something called an Unducted Fan Engine : r/aviation
Jett Mayhem on Twitter: "@MenTourPilot Take a look at the mid to late 80's GE36 unducted fan (propfan) - The tech and concept of this 25,000 lbf thrust GE engine design is
Cheap fuel killed propfan concepts decades ago. Can CFM's revived concept endure? | Analysis | Flight Global
Jet engine - Turboprops, propfans, and unducted fan engines | Britannica
Engine makers GE and P&W race to boost efficiency as net-zero carbon goal looms | Analysis | Flight Global
The Nuclear-Powered Jet Engine, Ceramic Turbines and Other Gems from the History of Flight | GE News
