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Turbojet engine TJ 20
Engine description
Newly developed small model aircraft turbine engine, but with the technology of "big" engines. It consists of a single-stage radial compressor, radial and axial diffuser, annular combustion chamber, and single-stage axial turbine, and reaches up to 220 N thrust with the weight less than 2 kg. Engine bearings are lubricated with the mixture of fuel and 5% of oil. The engine is controlled by a digital electronic system. Starting is electrical, as well as the fuel pump. Spark plug is built in the jacket of the combustion chamber. By its output the engine is predetermined for professional model aircraft applications. At the moment the engine is manufactured in test series, certain parameters have not been yet tested.
Technical data
| Thrust: Take off (max. 5 min) | 220 N |
| Weight (dry) | 1,95 kg (4.29 lb) |
| Engine length | 309 mm (12.2 in) |
| Outside diameter | 121 mm (4.8 in) |
| Fuel | JET A-1 |
| Oil | MIL-L-23699 |
| Engine ceiling of operation | 6000 m |
| Engine ceiling for starting | information unavailable |