Big Bertha, the naval gun at RAF Castletown

Read the story of “Big Bertha”, a 4.7″ naval deck gun salvaged from the SS Gretafield, a 10,000 ton tanker that floundered in Dunbeath Bay, and put to work by RAF Castletown as a defence against invasion. 

Read the full account of Big Bertha, written by Andrew Guttridge and originally published in Caithness Field Club’s annual Bulletins.