 In the meantime the company also diversified into building target drone aircraft as training aids for gunners.After the war, to meet changing customer tastes, it shifted its emphasis from "stick & tissue" kits to concentrate on the mass production of inexpensive hand-launched gliders and rubber band-powered toy planes that were sold at a variety of retail outlets.In 1948, Paul Guillow applied for a US patent for a model airplane glider "which can be made in various sizes and can be used for instruction in the principles of airplane flight and design, as well as for the amusement and entertainment of possessors.