Category "sea-patrol"

Why do Navy crew address each other by nicknames?

In the 2007-2011 Australian television drama Sea Patrol, crew usually call each other by their nicknames. I can understand why CMDR Flynn is called CO and LEU

Why does the Australian Navy use Revolutions XX00?

Does Revolutions XX00 mean the RPM of the propeller shaft? Why do the crew talk about propeller shaft RPM? What are they communicating? In The Last Ship that f

Why are these Navy machine gunners wearing gloves and masks?

Why are these Navy machine gunners wearing gloves and masks? I've watched many films where someone fires a machine gun, but never wearing gloves and masks. Why