Based on Watson's rocking wing patent, it is assumed that his first powered machine was completed around mid 1909 since it is almost exactly like the illustration that accompanies the patent. Built within the workshops of the Tay Motor Boat and Engine Company of Dundee, the Watson No.1 had the upper wing being approximately one half the span of the lower wing. The main wings were in two separate sections, between which the pilot sat. He had no instrumentation of any sort. The upper wing was mounted at the apex of an "A" frame, with the main wing forming the cross bar of the "A" and with long skis being fitted at its base.