Only just seen this thread.
We have a lifeboat station in the town I live, and we hold the boats and their crew with great affection.
I am lucky enough to count the recently retired coxswain as a friend (and fellow petrol-head)
The crews are tough, dedicated and extremely brave.
They are now called by pager; less dramatic than the maroon that was previously used.
The maroon would certainly wake you up in the middle of the night!