Thanks Andrew, very interesting.
Just out of interest I checked our Port Arrivals for the GERHEIN G.
Arrived Blyth 14.30 on the 17th January 2013 but last port is listed as North Fleet.
Arrived Blyth 05.06 3rd February 2013. Last Port listed as Flixborough.
She must have been speeding to leave you on the 16th, get down to North Fleet, unload and get back to Blyth on the 17th..
As far as I can tell she loaded Ingots at Blyth.
Its a complicated buisness chasing these ships!!