Perhaps if the rudder had been larger, the Titanic might have turned away
quicker and missed the berg. But that's really irrelevant. The ship was clearly
going too fast for conditions.


There's also the possibility that the cold water around
there made the steel the ship was constructed with somewhat
brittle. That the metalurgy of steel wasn't that well
controlled or understood back then. And that the batch
of steel used for the hull wasn't as good as it should have
been. And that modern ship builders would never use it
today. That the same ship built with good steel could have
taken that iceberg hit with much less if any damage.

I still wouldn't sail a ship thru iceberg infested waters.