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A380 Engine Comparison Question  
User currently offlineErj145lr From United States of America, joined Aug 2004, 431 posts, RR: 0
Posted (10 years 9 months 4 weeks 14 hours ago) and read 2967 times:

How will the size of the a380 engine compare to the engine size of the 777's GE90's?

3 replies: All unread, jump to last
User currently offlineWidebodyphotog From United States of America, joined Jun 1999, 917 posts, RR: 66
Reply 1, posted (10 years 9 months 4 weeks 13 hours ago) and read 2934 times:

Both the engines available for A380 have fan diameters of 116 inches.

The GE90-95B has a fan diameter of 123 inches

The GE90-110B and -115b have a fan diameter of 128.3 inches.


If you know what's really going on then you'll know what to do
User currently offlinePrebennorholm From Denmark, joined Mar 2000, 6893 posts, RR: 54
Reply 2, posted (10 years 9 months 4 weeks 12 hours ago) and read 2859 times:

The RR Trent 900 and GP 7000 engines on initial A380 production will be rated at 70k lbs which is one third less than the largest GE90 engines.

The A330 and the A380 have roughly the same engine thrust even if the 330 is way less than half as heavy. Twins need that extra thrust in order to survive an engine shut down after V1 speed during take off.

Using the GE90-115B the A380 could easily have been a three engined plane like the MD11.

It all leaves an interesting growth potential, maybe especially for the cargo market. Maybe allowable footprint on airport concrete will be the limiting factor rather than technical issues?

Always keep your number of landings equal to your number of take-offs
User currently offlineGigneil From United States of America, joined Nov 2002, 16347 posts, RR: 80
Reply 3, posted (10 years 9 months 4 weeks 11 hours ago) and read 2801 times:

The A330 and the A380 have roughly the same engine thrust even if the 330 is way less than half as heavy.

Um, yeah but the 330 only has 2 engines.  Laugh out loud


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