On the 145 flap 22 is used because of its go around performance.
If we didnt see enuff lights at the 100' decision alt then a go around with flap 45 would see the aircraft and ground meet for an unscheduled impact absorbtion test.
Even with flap 22 we have to engage go around mode,then pause to check the aircraft pitches up, BEFORE applying any thrust (does not feel right as you watch the speed bleeding back). There have been a number of 145s that touched down during flap 22 go arounds (with full thrust applied from the nose down attitude).
I forgot to mention we have an approach ban on practice cat 2 approaches into Cork (after one of our number ended up with burst tyres at the end of its wet runway).
