Growth during Airborne's first 22 years was slow, but in 1968, the airline known as Airbourne Freight Company,[1] started going through some changes.The company Air Cargo Equipment Corporation developed and patented a special narrow container, known in the industry later as the "C" container (referring to its C shape), which allowed the more efficient use of space within large jet aircraft.[2] The containers also eliminated the need to modify the cargo doors, thus saving any air-freight company that used them substantial sums of money.Known at that time as Airborne of California, the company merged with Pacific Air Freight of Seattle.The newly formed airline moved its headquarters north to Seattle and changed its name to Airborne Freight Corporation.