“The amphibious vehicle was one of 16 deployed to protect the town in March 1947 after floods caused the nearby River Welland to burst its banks
However, as the flood waters were pumped back, five of the 26ft-long machines floated away. One was later recovered, two sank in fishing pits and two sank into a hole.”
Source:
https://www.bbc.com/news/uk-england-...shire-56944032
