Originally Posted by
matt_hooks
On a jet there is no "critical engine" in the normal sense. This is a term used for twin prop aircraft where both props rotate in the same direction. All about the "downgoing blade effect"
There IS a critical engine - it will be the outboard engine onto the into wind (windward) side.
Failure of the critical engine between V1 and Vr will exacerbate the tendency of the aeroplane to swing nose into wind. Failure of a downwind (leeward) side engine will be partially cancelled out by the weathercocking caused by the crosswind - so losing a downwind engine is best (but not as good as losing none!).