Daifly,
Thanks very much for your useful comments. I was never going to start up a company tomorrow, and as Niknak said, I would undoubtedly go out of business if I tried to. I was looking for some very general info on how you would go about it if I decided to go ahead with it.
I will try and get some experience however I fear it will be rather diificult with todays job market.
Its interesting what you say about King Airs. Do you really think its jets or nothing these days? I guess a citation would be the place to start then? The reason that surprises me is that the joy of a King Air and smaller aircraft is the ability to land at smaller airfields nearer to where the client has to be. Isn't this one of the major factors in a client choosing a private aircraft - to avoid the travelling time and the hassles of international airports.
However, I have no experience of the field so please correct me. I'd be very interested to hear anyone's opinions.
Many thanks
Skyseeker