the ship it is a steel structure that supports the framework of the ship

so now that we know what a keel is. The duct keel is a tunnel that runs along

the keel

this tunnel is designed for people to pass through it

doing things such as inspection on pipings or alarm gauges

so today we're going into the duct keel. First

as always we have to put on some safety gear

To get into the duct keel. We must go through the engine room to the bottom

floor then through a man-hole.

Climbing down two stairs and ladders we're now inside the duct.

To get across the entire length we use a pulley cart system with wheels and a rope

to pull ourselves over. Along the way we do a visual inspection checking the

structure for any cracks or rust

To our right we can see the ballast lines, fuel lines and other pipelines. The fuel line

is the huge pipe with insulation to reduce the heat transfer. The other big

one is a balanced line for transferring sea water between tanks. In between the

pipings are the expansion joints or flexible couplings

the purpose is to coup with the ship's flexing when under heavy seas

we have arrived at the forward end. Here we test the bilge water alarm system by

pushing this knob with my boots

Finished inspecting here and now we're going back to the accommodation

:D

Some interesting facts, laying down the keel is the first step of shipbuilding

everything else is assembled afterwards

So when the keel is broken the ship is commonly set to have "broken his back"

as always thanks for watching. Thumbs if you liked it,

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