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The Progress D-236 was an experimental aircraft engine, a hybrid between a turbofan and a turboprop known as a propfan. Also known as the Lotarev D-236T, the three-shaft geared engine was designed in the 1980s and 1990s to power proposed propfan aircraft such as the Tupolev Tu-334, Ilyushin Il-118, and Ilyushin Il-88.
The Kuznetsov NK-93 was a civilian aircraft engine, a hybrid between a turbofan and a turboprop known as a propfan. The engine was also unique in having a separate duct around the contra-rotating propellers, as most other propfans are unducted. Once described in a respected aviation encyclopedia as "potentially the most fuel-efficient aircraft jet engine ever to be tested", the NK-93 was targeted for derivatives of Soviet/Russian airliners such as the Ilyushin Il-96, Tupolev Tu-204, and Tupolev Tu-330. Five in-flight engine tests were conducted on the NK-93 from December 2006 to December 2008.
European Future Advanced Rotorcraft (EuroFAR) was a proposed tiltrotor aircraft that was pursued during the 1980s and 1990s. It was a collaborative programme undertaken by the EuroFAR consortium, which comprised Aerospatiale, Agusta, Aeritalia, Messerschmitt-Bölkow-Blohm, Westland, and Construcciones Aeronáuticas SA (CASA).
The MTU/Pratt & Whitney RTF-180 was a planned turbofan aircraft engine that was to be jointly developed by Motoren-und Turbinen Union (MTU) and Pratt & Whitney in the early 1990s. It was to be the first civil engine program where MTU would be the prime contractor. The name of the engine, RTF-180, combined the initials for "Regional TurboFan" with the engine's nominal thrust of 18,000 pounds-force.
References
- ↑ "Indonesia to build plane with MBB, Boeing, Fokker". Business roundup. International Herald Tribune . No. 32195. Jakarta, Indonesia. Agence France-Presse (AFP). 26 August 1986. p. 11. ISSN 0294-8052.
- 1 2 "Propfan aircraft" (PDF). Developments. Science and Technology Perspectives. Vol. 2, no. 12. Foreign Broadcast Information Service (published August 21, 1987). June 20, 1987. p. 2. OCLC 13857080. Archived from the original (PDF) on 23 January 2017.
{{cite magazine}}: Unknown parameter|agency=ignored (help) - ↑ "Propfan project on hold" (PDF). Flight International . Vol. 133, no. 4115. 28 May 1988. p. 7. ISSN 0015-3710. Archived from the original (PDF) on 7 December 2019.