Pratt & Whitney XT57

XT57 / PT5
Artist's concept of the C-132 powered by 4 T57 turboprops
TypeTurboprop
National originUnited States
ManufacturerPratt & Whitney
Major applications
Number built6
Developed fromPratt & Whitney J57

The Pratt & Whitney XT57 (company designation: PT5) was an axial-flow turboprop engine developed by Pratt & Whitney in the mid-1950s. The XT57 was developed from the Pratt & Whitney J57 turbojet.