A lot of half-truths here - is this spectator's balcony?
Dan, the Avro RJ100 has the same length as the 146-300.
RJ85=200
RJ75=100
AF, Tailstrike can happen in any situation if your tail is lower than your lowest gear, has nothing to do with OEI (one engine out). This can happen if you overrotate (pull too much), if you fly too slow or wrong configuration (need more angle to get enough lift to stay aloft).
LCY is an extreme approach with roughly double the approach angle as any normal ILS. You approach faster to the ground, you have to rotate faster, if you miss the right point, you get a hard landing or you flare too long. There are special installations and procedures in place to conteract those problems, but basically it is a tick more difficult to land there, especially in windy conditions.
Dani