The Hanuman is one of a series of light sporting aircraft produced in India by Raj Hamsa, this machine being designed to accept a large range of engines to meet customer needs, these including the Jabiru 2200, Rotax 912, Rotax 914 and the Hirth series of four-cylinder units.

The Circle is a radical design built in Sydney by Ronald J Feast Mr Feast spent many years designing and building model aircraft and in recent years has been working on models of a circular-wing aircraft