Stephens Akro

The plain, statically balanced ailerons have steel spars with spruce ribs and trailing edges ; they are fabric covered and carry ground adjustable trim tabs.

The tail unit is a fabric covered steel tube structure, wire braced and with swept, straight tapered surfaces.

The tailplane is mounted at the top of the fuselage, with variable incidence and a flight controllable trim tab in the elevator.

[2] The Akro has a 180 hp (134 kW) Avco Lycoming AIO-360-A1A air-cooled flat-four engine in the nose, driving a two blade metal fixed pitch propeller.

There is a fixed, conventional undercarriage, with the mainwheels under glass fibre fairings on cantilever sprung steel legs.

[1] Stephens Aircraft issued plans for two models:[2] In the amateur tradition, builders introduced their own variations such as bigger engines.