With the growth of general aviation in the 1930s companies started to purchase single and twin-engined aircraft for business use.
A need to move goods and equipment made use of different general aviation aircraft and surplus military transports.
Charter membership Wheels Up, operated by Gama Aviation, saw its flight hours surge by 18% and expanded its fleet from 99 to 117 with most of the new aircraft being examples of the Beechcraft King Air 350i.
The first generation of business jets provided speed and altitude but not the range and comfort that a larger cabin volume would give.
With the introduction of more reliable helicopters at the end of the Second World War like the Bell 47 companies started to purchase them for executive and staff travel.