Premier Aircraft said a recent transatlantic flight by a Falcon 50 modified with the company’s 50Dash4 performance upgrade demonstrated a quicker takeoff and climb,  increased cruise speed and improved fuel burn. Speed increased 35 knots at cruise altitude and the modified Falcon reached cruise altitude 16 minutes faster than a standard Falcon 50. The aircraft, S/N 88, owned by West Star Aviation and piloted by Art Barth and Clarke Sloan, flew from Springfield, Ill., via Gander, Newfoundland, to Geneva Cointrin International Airport on May 17. The aircraft then returned to Wichita. There were six passengers and baggage on board for both crossings, the company said.