JSP,
Originally all the same Court Line group. After the demise of the parent company the SA helios continued with the sale from the bankrupcy to local buy out.
Carholme
Bill had a company called Autair which as the name suggests operated helicopters ( Bells and S55)
The first DC was actually bought to transport the Bells to and from operating sites.
Then when there was big demand for UK pax operations in the charter world they carried out these flights.
During the off season the DC 3 operated for Hunting Surveys doing mapping photography in West Africa ( Days before satellites
)
The first year was for Skyways who had put a DC3 through the fence in Southend.
Bill formed a separate division to operate the Charter work which then became Autair International Airways
They also operated the scheduled services to the north of England.
It then became Court Line when the company was bought by the shipping group.
Bill still retained an interest up to the end.