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777 Engine Differences  
User currently offlineQANTAS747-438 From United States of America, joined Jan 2001, 1886 posts, RR: 2
Posted (10 years 5 months 3 weeks 22 hours ago) and read 1931 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, 257 posts, RR: 0
Reply 1, posted (10 years 5 months 3 weeks 20 hours ago) and read 1889 times:

QANTAS747-438

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

Jetdoctor



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