A mockup of the GE36 at the Musée aéronautique et spatial SafranA closeup of the PW–Allison 578-DX propfan demonstrator installed on the port side of a McDonnell Douglas MD-80 testbed
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A propfan, also called an open rotor engine, open fan engine[1][2] or unducted fan (as opposed to a ducted fan), is a type of aircraft engine related in concept to both the turboprop and turbofan, but distinct from both. The design is intended to offer the speed and performance of a turbofan, with the fuel economy of a turboprop. A propfan is typically designed with a large number of short, highly twisted blades, similar to the (ducted) fan in a turbofan engine. For this reason, the propfan has been variously described as an "unducted fan" (UDF) or an "ultra-high-bypass (UHB) turbofan".
^"Safran tests radical jet engine design in historic wind tunnel". Reuters. January 20, 2024.
^"Evolutionary Trail of the Open-Fan Engine | Aviation Week Network".
A propfan, also called an open rotor engine, open fan engine or unducted fan (as opposed to a ducted fan), is a type of aircraft engine related in concept...
between a turbofan and a turboprop, known as an unducted fan (UDF) or propfan. The GE36 was developed by General Electric Aircraft Engines, with its...
engines, propfans generate most of their thrust from the propeller and not the exhaust jet. The primary difference between turboprop and propfan design...
modified DC-9, propfans reached a 30% improvement.[citation needed] This efficiency comes at a price, as one of the major problems with the propfan is noise...
for use on the Myasishchev M-90 giant detachable aircraft. NK-63 propfan. Ducted propfan based on the NK-32. NK-64 turbofan. 350 kN intended for Tu-204...
into the larger F414 turbofan, as well as the experimental GE36 civil propfan. GE developed the F404 for the F/A-18 Hornet, shortly after losing the...
to a 9 ft diameter (2.7 m) Hamilton Standard single-rotation propfan, containing propfan blades that were swept back 45 degrees at the tips. The T56 has...
Corporation. However, Boeing became increasingly interested in the latest propfan engine research that would yield large double-digit fuel savings, in particular...
Contents 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z See also Notes References Further reading External links This is an alphabetical list...
General Electric Company, doing business as GE Aerospace, is an American aircraft engine supplier that is headquartered in Evendale, Ohio, outside Cincinnati...
This list of GM engines encompasses all engines manufactured by General Motors and used in their cars. When General Motors was created in 1908, it started...
Aperture Radar' Retrieved 28 June 2011. 'Propfan Test Assessment (PTA)' NASA-CR-185138. Retrieved 28 June 2011 'Propfan Test Assessment (PTA): Flight Test Report'...
engines being put into service. The Progress D-27 propfan, developed in the U.S.S.R., was the only propfan engine equipped on a production aircraft. Afterburner...
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