The latest contender to steal the crown of best single-engine retract has to be the Diamond DA50 RG, which just received FAA certification over the summer. Fly along with FLYING editor-in-chief Julie Boatman on a cross-country flight from Friedrichshafen, Germany, to Wiener Neustadt, Austria, and on a local demo flight as she tests the airplane’s phenomenal low-speed handling and creditable cruise, all while hauling a show’s worth of people and bags.