Vehicles sink due to rough weather approaching beachpublished at 08:02 British Summer Time 6 June
Susannah Jarvis is the curator of the Royal Hampshire Regiment Museum.
Looking at records of the Normandy landings, she told the BBC troops ended up landing "slightly off" from where they should have been.
She said the rough weather meant only two out of 16 vehicles with the 1st Hampshire Battalion made it to the beach, as the others sank.