The principle was to create an environment for simple requirements for approving the initial testing of small experimental aircraft in the UK. The requirements for experimental aircraft, known as E Conditions, was to benefit small-scale aircraft designers and manufacturers by reducing the red tape and financial burdens associated with securing airworthiness and operational approval for new light aircraft designs, encouraging the growth of new design concepts.
The requirements allow aircraft designers to test fly new concept aircraft (up to a maximum take-off mass of 2,000 kg), without going through the costly and time-consuming procedures that currently exist to get a new design past the initial stage of proof-of-concept prototype. E Conditions can also be used to test aircraft modifications or if the aircraft is being operated in a manner or role that is previously unproven. If, after trying out a concept or idea, and it is thought to be viable, then a full certification programme can be planned and funded in the usual way.
Condor Aviation International Ltd have now completed the first successful project under these conditions in the Aeronca 11AC Radial. After a complete redesign and rebuild, the Aeronca underwent a series of flight tests and following the successful conclusion, was awarded a full permit to fly on 25 April 2017.
Following this, we are currently developing our C125, a radial engine version of the Cessna 120 and the CST160, our heavily modified radial engine version of a Stinson 108.