United Kingdom, July 10 -- Rolls-Royce announces that its Pearl 700 engines successfully powered the first flight of the Gulfstream G800 using 100% Sustainable Aviation Fuel (SAF). The flight was part of Gulfstream Aerospace's high-altitude flight test campaign, demonstrating the potential for 100% neat SAF to reduce contrail-forming particle emissions at altitudes up to 50,000 feet.The aircraft was paired with a specially modified Gulfstream G700, which is also powered by Pearl 700 engines, and was transformed into a flying emissions measurement laboratory. Operating in close formation, the aircraft enabled researchers to capture precise, real-world measurements of particulate matter and contrail-forming atmospheric characteristics at high...