Robert Lochner (engineer) harbours to Franklin Roosevelt and Winston Churchill. The decision to go ahead was taken and full-scale trials of the floating breakwater started in April 1944. During the trial, an onshore gale produced heavy seas, but Robert's bombardons calmed the waves effectively. Assembling two Mulberry Harbours the day after the landings on 7 June 1944 was one of the most remarkable engineering feats in history. A total of 1,500,000 tons of harbour equipment had to be taken across the channel in an operation involving 150 Allied tugs, and by D-Day 'plus 12', most of Lochner's concrete breakwaters were in position. On
The D-Day Story in D-Day and the Battle of Normandy. The embroidery took five years to complete and measures long. Film clips of veterans talking about their experiences give visitors further insight into what took place. The museum is run by Portsmouth Museum Services, a branch of Portsmouth City Council, and is supported by Portsmouth D-Day Museum Trust, a registered charity. The museum closed in March 2017 to undergo a £5 million refurbishment and allow for conservation work on exhibits. New exhibits include the "pencil that started the invasion" – the pencil used by Lt. Cdr. John Harmer to sign the order for