Still have the plates but you don't auto clean, they clean when the sensors tell them to, the Westfalias are now belt driven. Sludge level tank lasts for ever.
It was 1998 Mr Vestey sold Blue Star lock stock and barrell (Including the model BSL ships in Albion House) PONL owned the lot. RBS was a PONL subsiduary.
My last ship, was one of the big ones at that time, small ship now. A mere 8450teus, 12 Cylinder RT flex 92. Very impressive.