CT7 Turboprop Engine sectional flow diagram. This illustrates the "free turbine" concept. The compressor section and first 2 power turbines are not connected to the last 2 of the 4 power turbines. Therefore, the 2 last power turbines turn independantly of the rest of the engine. The propeller (prop gear box) is connected to the last 2 power turbines by the solid central shaft.
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Here some background information on real-world turboprops that doesn't apply exactly as...
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|current||03:42, December 29, 2007||593 × 615 (61 KB)||Chomko||CT7 Turboprop engine sectional flow diagram illustrating "free turbine" concept. Compresser section is connected only to the first 2 of 4 power turbines. The last 2 power turbines therfore turn independantly of the compressor section and first 2 power t|
|03:34, December 29, 2007||638 × 825 (72 KB)||Chomko||CT7 Turboprop Engine sectional flow diagram.|