N575DU Hawker Siddeley HS-125-1A DuPont de Nemours, Inc. USA - Unknown, USA Ken Haynes Collection - 09/1966*
N575DU Hawker Siddeley HS-125-400A DuPont de Nemours, Inc. Houston - William P Hobby (HOU / KHOU), USA - Texas Ken Haynes Collection - 18/10/1972
