N621ST Hawker Siddeley HS-125-1A Walter E. Heller & Company Inc. Burbank - Glendale Pasadena (BUR / KBUR), USA - California Ken Haynes Collection - 09/01/1979
N621ST Hawker Siddeley HS-125-1A Beechcraft Hawker Corporation Wichita - Beech Factory (BEC / KBEC), USA - Kansas Ken Haynes Collection - 10/03/1971
N621ST Hawker Siddeley HS-125-1A Schwerman Trucking Co. San Francisco - International (SFO / KSFO), USA - California Jay Sherlock - 11/1968
