The interior featured controls similar to those of a conventional airplane.

The Osprey looks like a conventional airplane, with two large propeller engines at the ends of its wings.

That's what the pilot does in a conventional airplane.

The conventional airplane used a fixed landing gear.

The B-2's wings, much thicker than those of conventional airplanes, blend smoothly with its fuselage.

A blended wing body has lift-to-drag ratio 50% greater than a conventional airplane.

The hope was that this configuration would have less aerodynamic drag than a conventional airplane.

The fighter would then engage Allied bombers before landing as a conventional airplane.

The space shuttle orbiter was the first spacecraft designed with the aerodynamic characteristics and in-atmosphere handling qualities of a conventional airplane.

From abeam the radar cross section was considerably larger, though still smaller than any conventional airplane of similar physical dimensions.