casing

I'm having a tough time trying to find any detailed plans on the arrangement of the catwalks for both the reciprocating engine room and for the turbine engine room. I'd like to be able to trace the paths to such spaces as the engineer's workshop and the paint stores compartment - both of which...

What is meant by engine room casing in the blueprints. It goes all the way from the boat deck down to the engine room.

I have two questions: 1. According to the plans, the boiler casing consisted of "Boiler Casing", "Vent", "Fan Trunk" and "Fidley". Let me start with the casing. On the upper decks, was this a giant chimney? was it a series of chimneys from each boiler inside the one casing? The Vents were...