What twin turboprop has centerline-mounted engines, a bizjet-quality cabin, and an oar and an anchor as standard equipment? That last bit about nautical gear should clinch it, but even veteran plane spotters may be in over their heads unless they can identify the Dornier Seastar. Far from frequently found afloat or in flight, a prototype of the PT-6-powered aircraft was prominently previewed at recent major aviation conventions. Dornier calls the Seastar “the most advanced amphibious seaplane in the world.” As of a 2010 AOPA Live interview, the price was $6 million.