"According to the Guinness Book of Records, at 127,900 pounds-force (569 kN)f, the engine holds the record for the highest thrust (although rated at 115,300 pounds-force (513 kN)f). This thrust record was accomplished inadvertently as part of a one-hour, triple-red-line engine stress test."
http://en.wikipedia.org/wiki/General_Electric_GE90
So the GE90 Engine Rated at 115,500lbs can be pushed
in a lab stress test,triple red line,to 127,900lbs.
So an Engine can produce around 11% more thrust
than it's mmo rating....if we assume the square-cube
law doesn't apply & there is no extra drag due to
increased velocity & no extra cubic Power required
to overcome the drag clearly even after that your simulation speed of 700mph at level flight at 2000ft is impossible......
At 0.53MMO at sea level =400mph
10% more power =440mph
20% more Power =480mph
30% more Power =520mph
40% more Power =560mph
50% more Power =600mph
perhaps the simulation software added Another
2 Engines......
Garbage in,Garbage out.....
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