It is an understatement to say that the turbine engine that powers the Pilatus PC-12 NG (303.465.9099, www.pilatus-aircraft.com) is time tested. Pratt and Whitney has been building the PT6A engine and its variants for more than 50 years and has produced over 42,000 examples. Together, those engines have accumulated about 345 million flight hours. The PC-12 NG’s 67P variant powers the aircraft to a cruise speed of 322 mph and enables it to fly at an altitude of 30,000 feet. Pilatus, a Swiss manufacturer, introduced the original PC-12 in 1994 and has since sold more than 1,200 of them. The NG (for “Next Generation”), which launched in 2007, costs about $4.5 million. When carrying three passengers, the NG has a range of nearly 1,800 miles and burns just 66 gallons of fuel per flight hour.