system will be a first in general aviation, along with the Cirrus Vision Jet. Piper calls the technology "HALO". Offered for $170,000 including extra equipment, it provides access to more than 9,000 runways over . PA-46R-350T Matrix In October 2007 Piper announced the Matrix, an unpressurized version of the Mirage. The new model has been designated as the PA-46R-350T, indicating retractable landing gear, , and turbocharging. Piper Aircraft is marketing the Matrix as a cabin-class aircraft for Cirrus SR-22 and Cessna 400 owners to step up to. Standard equipment on the Matrix includes a built-in oxygen system, Avidyne Entegra glass cockpit, S-Tec 55X autopilot and air conditioning. Major options on the Matrix are a de-ice system, an "Enhanced Situational Awareness Package", speed brakes, an avionics package featuring the Avidyne TAS610 dual antenna traffic advisory system, GWX-68 Weather Radar, and, beginning in 2010, the Garmin G1000 avionics system with twin 10" PFD's and a 15" MFD. The Matrix's powerplant is a turbocharged Lycoming TI0-540-AE2A producing . The aircraft's performance includes a cruise speed of at , at and at . Maximum takeoff weight is and an empty weight of giving a standard useful load of ). Matrix deliveries began in early 2008. JetPROP 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. ZeroAvia HyFlyer ZeroAvia, a Cranfield University partner, is a U.S./UK startup developing a Hydrogen fuel cell power train targeting to halve a turbine operating costs. It flight-tests a pair of electric motors replacing the piston engine of a Piper Malibu Mirage in California. In September 2019, the UK government granted £2.7 million ($3.3 million) for its HyFlyer demonstrator, culminating in a flight using hydrogen fuel cells. Other partners, including the Orkney Isles-based EMEC, Cranfield Aerospace Solutions, and fuel-cell developer Intelligent Energy should match this funding. The prototype made its maiden hydrogen-powered flight at Cranfield Airport on September 24, 2020. Production Accidents and incidents , 225 accidents had been reported in the Aviation