It would seem that the forecastle weather deck on the Duke of Northumberland was quite a full rounded affair rather than squashed down.
Hi Baldrick.....thanks for the photo, going down to Widnes in the next week or so to try and find the old girl and take a few shots of her.
From what I see, you are actually looking at the stern end of her and the (once) watertight end box, bot extra protection against sinking if ever holed amidships. That might give the impression that it is more bulbous that the end box actually was, because there was a "tunnel" built on top of the end box, open at both ends to allow the steering ropes and pulleys to pass through for protection.
Mind you, I think all six steam lifeboats, 3 propeller driven and 3 hydraulic jet boats were all built by different builders. the three plans I have for covering the 3 hydraulic boats are all different in some respect.
anyway it's back to the build, and the end boxes have been moulded in exactly the same manner as the hull, except that there was no need to do a split mould as no overhangs or other strange angles which would need a split mould to release the moulding.