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Ducted fans are used for propulsion or direct lift in many types of vehicle including aeroplanes, airships, hovercraft, and powered lift VTOL aircraft. The high-bypass turbofan engines used on many modern airliners is an example of a very successful and popular use of ducted fan design. The duct increases thrust efficiency by up to 90% in most ...
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.
RFB Fantrainer. The RFB Fantrainer (or Fan Trainer) is a two-seat flight training aircraft which uses a mid-mounted ducted fan propulsion system. Developed and manufactured by German aircraft company Rhein-Flugzeugbau GmbH (RFB), it has been used by the Royal Thai Air Force . Development of the Fantrainer commenced during the 1970s.
The Ryan XV-5 Vertifan was a jet-powered V/STOL experimental aircraft in the 1960s. The United States Army (US Army) commissioned the Ryan VZ-11-RY (re-designated XV-5A in 1962) in 1961, along with the Lockheed VZ-10 Hummingbird (re-designated XV-4 in 1962). It successfully proved the concept of ducted lift fans, but the project was cancelled ...
Type of aircraft. National origin. United States. Manufacturer. Honeywell. Primary user. United States Army. The Honeywell RQ-16A T-Hawk (for "Tarantula hawk", a wasp species) is a ducted fan VTOL miniature UAV. Developed by Honeywell, it is suitable for backpack deployment and single-person operation.
Developed from. Allison T701 / Allison 501-M62B. The Pratt & Whitney/Allison 578-DX was an experimental aircraft engine, a hybrid between a turbofan and a turboprop known as a propfan. The engine was designed in the 1980s to power proposed propfan aircraft such as the Boeing 7J7 and the MD-91 and MD-92 derivatives of the McDonnell Douglas MD-80.
The engine drove two wingtip-mounted fiberglass tilting ducted fan propellers through a "T" box on the engine that transmitted power to the propellers via a 4-inch (102-mm) aluminum tubular shaft and two smaller shafts. Each propeller was 48-inch (1.22-meter) in diameter and the duct outer diameter was 60-inches (1.52-meter)).
A. AgustaWestland Project Zero. Airbus E-Fan. Airship Industries Skyship 500. American Blimp A-170. American Blimp MZ-3. Avro Canada VZ-9 Avrocar.