[1][2] The DB-80 was aimed at the airmail market and was a single-engine, high-wing aircraft giving easy access by two port-side doors to a well-lit cabin with two passenger seats and to a separate mail compartment behind them.

[3] Its empennage was conventional, with a straight-tapered, blunt-topped fin and unbalanced rudder, the latter cut away at its base to allow for movement of the one-piece elevator mounted on a triangular tailplane at mid-fuselage height.

Each axle was mounted at the lower vertex of a triangular box acting as a cantilever leg, with its upper side hinged from the fuselage longerons.

The strengthened forward edge of the structure extended above the hinge and connected to an elastic block housed in a reinforced transverse beam which passed under the cockpit, incorporating shock absorbers.

The wing was built around three spars, rather than the traditional one or two, and the detail of their caps or flanges, rather than the shape of the longitudinal braces or ribs, determined the airfoil profile.