Jendrassik Cs-1
 | This articleneeds additional citations forverification.(September 2010) |
| Cs-1 | |
|---|---|
| |
| Jendrassik Cs-1 displayed in the Museum of Technology inBudapest | |
| Type | Turboprop |
| National origin | Hungary |
| Manufacturer | Ganz Works |
| Designer | György Jendrassik |
| First run | 1940 |
| Major applications | Varga RMI-1 X/H |
TheJendrassik Cs-1was the world's first workingturbopropengine. It was designed by Hungarian engineerGyörgy Jendrassikin 1937, and was intended to power a Hungarian twin-engineheavy fighter,theRMI-1.
Design and development
[edit]György Jendrassikworked ongas turbinesand in order to speed up research, he established the Invention Development and Marketing Co. Ltd. in 1936. Following the successful running of a small experimentalgas turbineengine of 100 bhp output in 1937, began to design a larger turboprop engine, which would be produced and tested in theGanzworks inBudapest.[1]
Of axial-flow design with 15-stage compressor and 7-stage turbine, it incorporated many modern features. These included a rigid compressor-turbine rotor assembly carried on front and rear bearings. There was a single annular combustion chamber, of reverse-flow configuration to shorten the engine, air cooling of the turbine discs and turbine blades with extended roots to reduce heat transfer to the disc. The annular air intake surrounded a reduction gear for propeller drive takeoff, and the exhaust duct was also annular.[1]
With predicted output of 1,000 bhp at 13,500 rpm the Cs-1 stirred interest in the Hungarian aircraft industry with its potential to power a modern generation of high-performance aircraft, and construction of a twin-engined fighter-bomber powered by Cs-1s, theVarga RMI-1 X/H,began.
The first bench run took place in 1940, becoming the world's first turboprop engine to run. However, combustion problems were experienced which limited the output to around 400 bhp.[2]
Work on the engine stopped in 1941 when theRoyal Hungarian Air Forceselected theMesserschmitt Me 210 Ca-1for theheavy fighterrole, and the engine factory converted to producing theDaimler-Benz DB 605to power these. The prototype RMI-1 was later fitted with these engines in 1944.
See also
[edit]Related development
Related lists
References
[edit]- Notes
- Bibliography
- Gunston, Bill (2006).The Development of Jet and Turbine Aero Engines, 4th Edition.Sparkford, Somerset, England, UK: Patrick Stephens, Haynes Publishing.ISBN0-7509-4477-3.
- Gunston, Bill (2006).World Encyclopedia of Aero Engines, 5th Edition.Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited.ISBN0-7509-4479-X.