Tshirt,
Pratt&Whitney...desperate?
Ah, well no actually. The 4360 was used because it was available off the shelf, so to speak.
But on the other hand, the folks at General Electric (the American company) used their developmental talents with turbochargers, to lead the USA into the jet age. A rather joint British-American effort.
The Brits did indeed lead for awhile with turbo-shaft design.
The Dart and Tyne are two good examples.
But then Allison came along with the 501 series....superb.
Now there's history
