Hello Little Mac; so sorry to hear of your dad's departing earlier this year; no doubt he is up in heaven now with Broad discussing the old days at Aravco! Mac certainly knew his job and worked very hard for the company, so I had great respect for him. It was the likes of Aravco, my old firm FJC, IDS aircraft, McCalpine Aviation who were effectively the pioneers of the business jet world and set many procedures and standards that have been carried on in today's 'modern world'. RIP Mac.