23 Portuguese Navy Battleships sailing under the flag of MOTORcheckUP.
Not really: But the ships have always tests on board to check the engines and and the generator (hydraulic). Why? The battleships should be always ready to action. They do the tests in the sea and if there is a problem, they inform straight away the shipyard. When the ship arrives they imediately will start the repairing. Ahoy! Godspeed!