With excellent performance, reliability, and value, the Pratt & Whitney Canada (P&WC) PT6 turboprop aircraft engine entered service in 1964 and continues to evolve, powering mid-size aircraft across the world. Ranging in power from 500 shp to over 2,000 shp and available in over 70 models, it offers flexibility and capability for a variety of applications. It consists of a gas generator with accessory gearbox and a free-power turbine with reduction gearbox. New technologies have enabled the PT6 to gain more power without significantly increasing size or weight, reduce emissions, and enhance ease of operation.
Pratt & Whitney Canada PT6 Turboprop Engine

Did you know?
PT6 variants are found in helicopters, boats, and industry.
According to the P&WC website, the PT6 turboprop has 400+ million flying hours and flies in 180 countries.
About this...
This Pratt & Whitney PT6 is displayed in the Museum's Main Gallery as a tribute to the many aircraft it powers around the world.

Image Credit: T-6A "Texan II" with P&WC PT6 turboprop engine at Randolph AFB in Texas, by USAF Master Sgt. David Richards, Creative Commons

Specifications
Type: Turboprop
Dimensions: Length 62", Diameter 19", Weight 270 lb
Compressor: 3-stage axial and 1-stage centrifugal flow compressor Combustor: Annular reverse-flow with 14 burners
Turbine: 1-stage gas generator power turbine and 1-stage free power turbine
Type: Turboprop
Dimensions: Length 62", Diameter 19", Weight 270 lb
Compressor: 3-stage axial and 1-stage centrifugal flow compressor Combustor: Annular reverse-flow with 14 burners
Turbine: 1-stage gas generator power turbine and 1-stage free power turbine

P&WC PT6 Turboprop Engine, photo by Michael Barera, Creative Commons