The Liberty class had a very bad design flaw, in rough sea they would break in half! Something like 2,450 of the were made. Without them though, the British would have starved to death.

I must not fear.
Fear is the mind killer.
Fear is the little death that brings total obliteration.
I will face my fear.
I will permit it to pass over me and through me.
And when it has gone past, I will turn the inner eye to see its path.
When the fear has gone there will be nothing.
Only I will remain. 

 Frank Herbert, author of Dune