Features of PT6A Engine Which is A Main Variant of PT6 Engine

The PT6A engine family continuous to advance, integrating the latest technologies in the drive to exceed the expectations of our customers in reliability, fuel consumption, performance, environmental friendliness, and durability. More than sixty-nine PT6A engine models have been produced which ranges shaft horsepower from 500 shp to 2,000 shp. 



New aerodynamic, as well as material technologies, have enabled the PT6 engine for gaining more power without considerably increasing in size. Other innovations have increased the maintenance intervals, reduced the emissions, and further enhanced ease of operation with the introduction of digital electronic control to small gas turbine engines.


The novel PT6A configuration has been proved to be a key attribute to its success. Its reverse flow inlet, rearward, and forward facing turbine section providing quick maintenance which is turn-around through on-wing hot section refurbishment in aircraft installations. The PT6A engine is a two-shaft engine with a multi-stage compressor which is driven by a single-stage compressor turbine and an independent shaft coupling the power turbine to the propeller via an epicyclic concentric reduction gear box.


The PT6A family of engines which is the main variant of PT6 engine represents three series of models with increasing power levels, known as PT6A Small, Medium, and Large. Through the increase of compressor air flow as well as increased number of power turbine stages, the increased power levels are achieved. The latest models enjoy the benefit of additional advanced technologies in turbine cooling, materials, and aerodynamic design.