 The other pilots entered in the race held a meeting the night prior to the race, and advised Darryl Greenamyer, who was in charge of the race arrangements, that if the two big airplanes participated, they wouldn't, so the two aircraft were withdrawn.In 1970 Paulson began to develop the American Jet Hustler, a corporate aircraft that featured a propeller in front for short runway use, and a jet in back for high-altitude cruising.The concept was a pressurised business aircraft powered by a Pratt & Whitney PT6 in the nose and equipped with a standby Teledyne Continental turbine unit in the tail.