Rolls-Royce testing new aircraft engine over Tucson
Boeing 747-400 - Specifications - Technical Data / Description
Rolls-Royce RB211 - Wikipedia
Rolls-Royce Turns a 747 Into a Flying Lab for New Engines | WIRED
Astro95 Media on Twitter: "The 747-400 has three options for engine type - Rolls Royce RB211, Pratt & Whitney PW4000 and General Electric CF6. #AvGeek https://t.co/DKan57NyDB" / Twitter
B747-400 RR engines white - Aircraft Skins - Liveries - X-Plane.Org Forum
Rolls-Royce Flies A Trent 1000 Engine On 100% Sustainable Fuel
Rolls-Royce Is Testing A Low-Emission Combustion System On Its Boeing 747