P.Lewis British Aircraft 1809-1914 (Putnam)

Watson Biplane No. 2

   The second biplane designed by Preston Watson to incorporate his tilting upper wings appeared in 1910 and was fitted with a three-cylinder Humber engine of 30 h.p. It was an improved version of the first machine, and was fitted with a four-wheel undercarriage and bracing struts to the tips of the lower wings' underside. Further modifications were made, which consisted of fitting a new monoplane horizontal tail without end fins, side area at the rear being embodied by filling in between the booms at the rear. In this form the Watson No. 2 was flying at Errol, Perthshire, during 1912.