Lambach HL.II
The Lambach HL.II was a single seat aerobatic biplane designed and built in the Netherlands to provide Dutch pilots in a local, annual competition with their own machine. It proved no match for contemporary Germany aircraft. Design and development There were no Dutch aircraft competing in the North Dutch Flying Club's first international aerobatics competition held in Eelde in the spring of 1936; from a field of German and Dutch pilots, the best placed Dutchman came second, flying a British Tiger Moth. Hugo Lambach, who had already designed and helped build the Lambach HL.I at the Delft Student Aeroclub, was asked to produce an indigenous competitor. In January 1937 he set up a factory trading as Lambach Aircraft at Voorburg and by May the HL.II was designed and built, making its first flight on 4 May flown by Hein Scmidt Crans, the pilot who had come second in 1936. The HL.II is a conventionally laid out biplane with single bay wings of constant chord and rounded tips. These are mounted without stagger or sweep, braced with N-form interplane struts and a pair of similar form cabane struts. There are ailerons on both planes, externally connected. The fin and rudder are