Both wings were rectangular in plan out to blunted tips and had constant, thick sections; they were built around twin spruce and plywood spars and fabric covered.

[1] The fuselage of the Senior was a welded steel tube frame, its forward part covered with light metal and the rear with plywood.

Its honeycomb radiator was ahead of the engine, which had long exhaust pipes on both sides of the fuselage to take the emissions past the pilot.

[1] The rear surfaces of the Senior were large, with a rectangular, strut-braced tailplane mounted on top of the fuselage carrying elevators hinged at the end of it.

[1] The Senior's landing gear was fixed and conventional with wheels, well apart, on a single axle held on two V-struts; the forward struts of the Vs contained shock absorbers.