HMS Conundrum

This was the unofficial name given to the large CONUM drums used for laying the PLUTO pipeline. They were 30 foot diameter and weighed 250 tons.[1][2][3][4]

References

  1. ^ PLUTO - PIPELINE UNDER THE OCEAN
  2. ^ Pluto and its whereabouts in Epsom
  3. ^ Picture of a "HMS Conundrum"
  4. ^ Pipeline Under the Ocean