On Friday night I was continuing my trawl through old posts, when I came across the comment on a slipway at Havant, and Mulberry Harbours. I was curious so went investigating things. I could not find anything specific to Broadmoor slipway (the actual location) relating to WW2, but did find some other stuff.
The second picture is of an ex Army RCL L105 Arromanches at the slipway, in use as a civilian vessel. (Picture copyright Scarletpimpernel on Flickr). The first picture is of the same craft when it was in use by the RN as L112 Agheila.
The third picture is a Google earth shot of a Phoenix caisson still in Langtone Harbour, which is where the slipway is. Three Phoenix were built at nearby Hayling Island to supplement the Mulberrys, one broke and sank during its launch and it is still there.
Amazing what you find!