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PT6A-27

General Engine specification Blog1.
It is a turboprop engine- free turbine .
This is an engine used in airplanes like
  • DHC-6 Twin Otter 300 
  • Harbin Y-12
  • Beechcraft
This a Pratt and Whitney Canada Engine. One of the most famous and successful company to produce turboprop engine.


Compressor
 It consist of 3 stage axial compressor and 1 stage centrifugal flow compressor.

Combustion 
Annular reverse flow (right to left according to diagram above) combustion with 14 simplex burner (Glow plugs)

Turbine
1 stage free power turbine and 1 sage gas generator power turbine.(Left to right according to diagram above)


Other specs:
  1. Fuel type: aviation kerosine
  2. Overall pressure ratio- 6.3:1
  3. Air mass flow: 5.3 lb/s
  4. Power to weight ration: 2.14 hp/lb 

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