Stitch From United States of America, joined Jul 2005, 29468 posts, RR: 84
Reply 2, posted (7 years 3 months 3 weeks 7 hours ago) and read 4572 times:
Quoting Kaitak744 (Thread starter): In the comparison chart made from data take right off of Boeing's website, it seems that GE would be the best option for the 777 (-200ER). However, other airlines have opted otherwise. Why exactly?
Simple preference. Some airlines prefer P&W or RR when they have the option.
Commonality. While the engines and their parts may not be interchangeable, chances are it's easier for the mechanics to be trained within the same manufacturer due to a common design philosophy, if nothing else.
Performance. But not the way you might think. Sometimes, you don't need the most powerful engine out there, so a less-powerful engine might offer greater fuel economy or longer maintenance intervals that make it a better fit.