The Harbour

See a large versions of the images below here.
…or the Blue Hour, whatever you wish it to be…
You’ll have to take my word for it that BF515 (BF for home port Banff, Scotland) is red (and white) but she is, and she’s being fitted out in MacDuff Harbour. In this image, it is low water and Big Red is resting on the harbour bottom.
See a larger version of the image here.
These great big lumps of metal are towed behind trawlers. Their aquadynamic shape help to keep the ‘mouth’ of the trawl net open (a bit like wings flying through the water) and the hapless fish are caught in the net, never to escape.