JumbleDuck
Well-Known Member
A mast on a 21ft boat is not that heavy.
My Jouster mast was 25'6" long (I measured for wiring) and I could easily carry it around by myself.
A mast on a 21ft boat is not that heavy.
Mine had a strip of wood, sheathed in GRP, across the opening, but it was at the top of the bulkhead of which I posted a picture and which have taken the load. I am sure that the OPs boat has been substantial hacked about since Westerly made it. It needs either something much stronger than that piece of wood there or - and this is what I would do - a recreation of the original bulkhead shape.From your latest pic I would agree the strip along the centre of the roof now does look original.
A piece of hardwood as you have horizontally under the mast is totally inadequate to take the loads involved.

A lot of small Westerlys have hollow sections under the cabin sole that are again, themselves, springy. I've seen one that's been cut open for some reason and it was a fairly large void the shape of the root of the skeg in its case. A great place for importing some goods from Columbia, or potentially for filling with to pack foam for more floatation. Don't know yours specifically.As far as I can tell the box sections stop at floor level and do not go through it to meet a rib in the hull moulding, and the hull there sounds hollow.
As far as I can tell the box sections stop at floor level and do not go through it to meet a rib in the hull moulding, and the hull there sounds hollow. That said they are wellbolted to the fibreglass internal structure and each ahs in integral fin to which the current bulhead panels attach. There is no sign of them habing shift - its just the beam that has given way.
A lot of small Westerlys have hollow sections under the cabin sole that are again, themselves, springy.
Could afford yourself more access to the fore, with similar strength, if you cut out an arched bulkhead and attached it to the uprights.
I like the full naval/marine door look with an arch at the bottom to. Suppose, if glassed in, it would add a little stiffness too.
The bulkhead is bonded to the hull all the way round from the locker base on one side to the locker base on the other. Without it you would need an awful big cross member to take the load, and much stronger columns as well.My Jouster shares your white interior (along with interesting texture from the headlining glue...) but it also has a ply vertical section, like in JumbleDuck's photo. I wonder if this provides some support to the cross member? Or at least to the roof.