Pratt & Whitney XT57

XT57 / PT5
Artist's concept of the C-132 powered by 4 T57 turboprops
Type Turboprop
National origin United States
Manufacturer Pratt & Whitney
Major applications Douglas JC-124C Globemaster II
Douglas C-132 (intended)
Number built 6
Developed from Pratt & 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.