(The Raytheon/Beechcraft Baron and Piper Seminole are the other two.) And therein lies its popularity and the explanation for why its one of only three piston twins still in production. In short, the Seneca doesnt excel at anything but does everything reasonably well at an affordable price. The venerable Seneca is available in several models so theres wide price stratification, its got decent if not blistering speed and it carries a fair load on a reasonable fuel burn. But putting a sharp pencil to the equation usually points the would-be twin driver at something more realistic and often, a Piper Seneca fills the bill.Īs well it should. When the owner of a single-engine airplane starts thinking about twins, hes liable to begin not in the cheap seats but with something pricey and fast, perhaps a Baron or a cabin-class Cessna.