The JetPROP is an aftermarket turbine engine conversion for the PA-46-310P Malibu and PA-46-350P Malibu Mirage offered by Rocket Engineering of Spokane, WA. Originally certified in 1998 as the JetPROP DLX with
a Pratt & Whitney PT6A-34 engine, conversions 90 and above used the P&W PT6A-35, after the -34 was discontinued. A lower cost JetPROP DL version became available in October 2003 utilizing the P&W PT6A-21. As
of September 2008, 233 JetPROP conversions had been delivered. Twenty percent of the entire PA-46 fleet have been converted.