The unconventional appearance of the pusher biplane Scheldemusch, with its then novel tricycle undercarriage, was the result of the intention to produce a novice's aircraft, easy and forgiving to fly and to land.

They were built from twin wooden spars, plywood covered in the vulnerable regions of the leading edge and the underside between the N-form interplane struts.

[1][2] The nacelle was flat sided and just wide enough to accommodate the pilot, who sat under flexible glazing[3] below the leading edge of the upper wing.

[3] Behind the pilot was a small baggage hold, externally accessed and the 40 hp (30 kW) Praga B2 two-cylinder engine was at the rear of the nacelle, driving a two-bladed pusher propeller with its boss only just below the upper wing.

[1] The main undercarriage was mounted on splayed, sprung and faired legs attached to the rear of the nacelle plus vertical long stroke shock absorbers.

Not long after building the Scheldemusch prototype, de Schelde also brought out a flying boat version called the Scheldemeeuw (meeuw = gull).

[1] The fuselage was necessarily different, with the nacelle replaced with a wooden structured and plywood-skinned, single-step hull which extended rearwards almost to the tail.

[1][8] The engine mounting and pilot's cockpit were little changed, though the flexible glazing was replaced with flat upright and more robust glass panels There were small floats fixed directly onto the underside of the lower wings for stability on water.