When does Airbus expect to start testing the engines since they are on the frame (A380) now. Will those be the largest engines running in the sky when the A380 debutes?
Not even close. Any engine for the 777 is much larger and more powerful, in particular the GE90-115B. A quad can have much less power for a given weight than a twin, which means the 380, can have much less powerful engines.
"There are no stupid questions, but there are a lot of inquisitive idiots."