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777 Engine Differences  
User currently offlineQANTAS747-438 From United States of America, joined Jan 2001, 2076 posts, RR: 2
Posted (12 years 7 months 1 day 16 hours ago) and read 3069 times:

I'm real interested in finding out about the 777 engines and what the differences are between the Rolls Royce, P&W, and GE engines.

1) What are the differences between the three engines for the various 777 models?

2) What does each engine have that's special about it over the others?

3) Why would an airline choose one engine over another?

Thanks a lot!

My posts/replies are strictly my opinion and not that of any company, organization, or Southwest Airlines.
1 replies: All unread, jump to last
User currently offlineJetdoctor From United Kingdom, joined Aug 2001, 260 posts, RR: 0
Reply 1, posted (12 years 7 months 1 day 14 hours ago) and read 3027 times:


I can broadly answer #3 for you.
An airlines selection of engine can depend on many things, but usually comes down to money, fuel economy and reliability.
An airline buys/leases the airframe, and then can bargain with the "Big 3" as to why they should purchase/lease their engines. Certain performance guarantees can be made, or quantity discounts if say the airline is buying 20 aircraft (40 engines plus spares), or it can come down to product support packages too.

All in all an airline wants a cheap engine that will run forever and give it the most miles to the gallon.

Hope this sorta answers #3 for ya


Break ground, and head into the wind. Don't break wind and head into the ground.
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