Pratt & Whitney Canada (P&WC) appears to be working on a successor to the best-selling PT6 turboprop engine it refers to as the PT9A-11 according to regulatory filings with the US Federal Aviation ...
Pratt & Whitney Canada has refiled regulatory exemption requests with the FAA for its new PT9A-11 turboprop and PW220A turboshaft engines, describing both powerplants as more efficient successors to ...
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