I've never seen a NYC fire boat at work, but
usually when they're in "ceremonial"
mode, with water spraying in all directions.
First time was when they joined the tall ships here
on the Hudson on July 4, 1976; last time was
when one of them accompanied the Queen Mary 2
as she made her way out of the Buttermilk
Channel on her way home to England (see here).
[Linking back to Ruby Tuesday and to Our World Tuesday.]