![Engine spool ups) 747 engine competition: Rolls Royce RB211-524G vs General Electric CF6-80C2-B1F - YouTube Engine spool ups) 747 engine competition: Rolls Royce RB211-524G vs General Electric CF6-80C2-B1F - YouTube](https://i.ytimg.com/vi/8-o29n2s-I4/maxresdefault.jpg)
Engine spool ups) 747 engine competition: Rolls Royce RB211-524G vs General Electric CF6-80C2-B1F - YouTube
![Rolls-Royce North America Boeing 747-200 Trent 1000 engine test-bed taxiing. Part of the special Boeing 7-series airliner customer party airshow celeb Stock Photo - Alamy Rolls-Royce North America Boeing 747-200 Trent 1000 engine test-bed taxiing. Part of the special Boeing 7-series airliner customer party airshow celeb Stock Photo - Alamy](https://c8.alamy.com/zooms/6/c6f63444a91f47ec8be8552425c94efd/kfar70.jpg)
Rolls-Royce North America Boeing 747-200 Trent 1000 engine test-bed taxiing. Part of the special Boeing 7-series airliner customer party airshow celeb Stock Photo - Alamy
![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 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](https://pbs.twimg.com/media/C-CvdW2UQAA__aD.jpg:large)