The Pander E was a true sesquiplane, with a lower wingspan exactly half that of the upper span; in plan, though not in detailed construction the lower wing was almost a half scale copy of the upper wing, the two maximum chords being in the ratio of 0.52 and the area ratio 0.23.

The narrower lower wings were of similar construction but used only a single box spar, though this was extended into a larger D-box by ply skinning forward around the leading edge.

These Vs leaned outwards, their base on the lower wing strengthened with a further single strut to the upper fuselage longeron.

[2] The fuselage of the early Pander Es was of mixed construction, the forward structure from welded steel tubes with aluminium sheet skinning and the rear wood-framed and plywood-covered.

Nonetheless, the Rotterdam Aero Club (RAC) placed an initial order for two, received in 1927, and another the following year; these were the first Dutch aircraft used for training.