Engine

Question 1

What is the flat rated SHP of the PT6A-68

Answer 1

1100

Question 2

What are the two sections of the engine

Answer 2

Gas generation and power turbine

Question 3

What components make up the gas generation section

Answer 3

4 stage axial flow compressor, 1 stage centrifugal flow compressor, combustion chamber, single stage compressor turbine

Question 4

What components make up the power turbine section

Answer 4

2 stage axial flow power turbine, reduction gearbox

Question 5

Briefly describe the airflow through the engine

Answer 5

Enters via intake cowling beneath the prop and flows through an intertidal separator. Then turns 180 and through both compressors. Then combustion chamber where it is mixed with fuel and lit. The expanding air passes over comp turbine (sustains the engine) then over two power turbines before exiting via exhaust ports, diverting rearwards by exhaust stacks.