[horsa]

Adriatico wrote

It is not that simple...rusty or not rusty.

Sea weathering on metal surface is :
-salt and iodium color damage
-biological (alge) crusts
-rust

...and it is not that simple to re-paint in port, it takes hard work to "cure" the base surface before repainting (last thing that somebody will do in bombed hangars)

Weathered subs died silently in a far away corners of ocean without photographers and any possibility of remaining documents...

Funkmaat wrote

Did you see the state of the Ark Royal on the way to the Falklands/Malvinas?

...... and back