It turns out that sometimes things are bigger in the United Kingdom. Rolls-Royce has just run the UltraFan demonstrator aero engine at full power. The massive engine is the world’s biggest and can produce over 85,000 lbs of thrust. Rolls-Royce is one of the major producers of commercial jet engines along with the United States’ giants – Pratt & Whitney and General Electric ( France’s Safran also produces the CMF International LEAP in partnership with Pratt & Whitney). 
Boeingand others are watching closely as Airbus works with Rolls-Royce to produce the most efficient long-range engine yet for commercial aircraft.