10/31/2007. Remarks by Johan Visschedijk: "This aircraft was first flown in October 1999, by Len Fox. Underpowered the aircraft was finally fitted with General Electriv J85 engine, larger fuel load and revised landing gear. The designation was changed to ViperJet MKII Executive and the aircraft made another maiden flight on June 12, 2005, again with Len Fox at the controls."