Henderson-Glenny Gadfly

William A. Baker had undertaken the construction of the six-seat Henderson HSF 1 (G-ABVF) and all three of the Henderson-Glenny Gadfly mono-planes which were also designed by K. N. Pearson, M.C., AFRAeS.
Glenny & Henderson company at Byfleet, Surrey, UK, built two Henderson-Glenny HSF.II Gadfly single-seat light monoplanes in 1929, one with an ABC Scorpion II engine, the other with a Salmson AD.9 radial.