Beechcraft 76 Duchess

Like Piper with its PA-44 the Beechcraft model 76 Duchess was not derived from an existing piston twin like the Baron, but from the smaller, single engine Model 24 Sierra. This is especially visible in the window arrangement, in particular the relatively low cockpit side windows resulting in a high, non-transparent cockpit roof. The Beech' 24 fuselage and wings were fitted it with two engines with counter-rotation props in relatively short nacelles, and a long, streamlined nose. The T-tail has nearly parallel leading and trailing edges, a small dorsal fin and a small forward pointing bullet fairing at the top. The retractable gear and trailing link main gears, and a nose gear retracting forward. Finally, the Duchess has non-tapered wings but with significant dihedral. (top photo: Tomás Del Toro/Wikimedia, modified)

Essentially, there was only one version of the Duchess, although one was converted with turbocharged engines. This was unofficially known as Beech 76TC.

The heritage of the Beech 24 Sierra is most obvious when looking at the Duchess from the top: the high cockpit roof with low side windows are typical for the Beech 76. (photo: Tomás Del Toro/Wikimedia, modified)

From a rear angle the view of the tail reveals that trailing and leading edge are parallel, and there is a small bullet fairing at the top. (photo: Rob Hodgkins/Wikimedia)