Colin has held down various jobs, whether washing dishes in NHS hospitals or driving mini-cabs in London. He learned to fly in the RAF reserve while at Sheffield University, where he was marked down for suggesting Germany might one day be reunited.

In roles within the nascent PC industry he devised a secure signature system which featured in the DEFTEC awards, and was demonstrated to the UK Minister of Technology and the National Physical Laboratory. 'Came to nothing' he says, 'but I did meet Donald Davies and Norman Kitz', the inventors of packet-switching and the desk-top calculator respectively.

Subsequently he turned to flight instruction and qualified as a simulator intsructor and line-trainer on Boeing and Airbus types during the course of 15,000 flight hours. However he only really ever wanted to fly helicopters, and building one in the garage thus fulfils a lifelong ambition.

Peter Day meanwhile, a colleague of some forty years, is also a pilot trained in the reserve whilst studying for law at Keele University. Subsequently he built a software company which pioneered the use of PCs in freight-forwarding, a parley with regulators that suits him ideally to urban air mobility (UAM). When not assisting, Peter is introducing  Velocity kit aircraft to the domestic market, beside hangar-home developments.