The JetPROP DLX is an aermarket turbine engine conversion for the PA-46-310P Malibu and PA-46-350P Malibu Mirage. A lower cost JetPROP DL conversion became available in October 2003 utilizing the P&W PT6A-21. As of September 2008, 233 JetPROP conversions had been completed and delivered by Rocket Engineering of Spokane, WA.