Well.... this was my first real bash at caulking. Previously I had planked decks at 1:128 and 1:96 scale which is too small for any real caulking.
The Vigilant kit was supplied with lime strip for the decking and a sheet of black cartridge paper for the caulking. The caulking was done before the deck was installed in the hull, The underdeck ( about 2mm ply) was oversize to the hull, the margin boards were then fitted to this , a strip of the cartridge paper, about 3mm wide, between the individual margin boards.
This whole assembly was the placed on a thick ply base, just placed on it. Down the centre of the deck, between the baseboard and the ply deck was placed a long strip of wood , the thickness of the raised camber of the deck. the edges of the deck were then held down to the baseboard by drawing pins, such that the heads of the pins held the plywood deck too the baseboard; this then gave the camber of the deck and it was ready for planking/caulking.
Draw a line down the centre of the dcek and lay one plank along this.
Make up about 20 little wedges in about 3mm ply.
Cut a strip of 3mm cartridge paper and, using wood glue,lightly tack it to the first plank, Ibbediatly lay the second plank olong side the first, squeezing the caulking paper between and use more drawing pins and the wedges to squeeze the two planks tightly together.
Work out, plank at a time, from the centre to the margin boards. As each plank arrives at the margin boards, make sure that port and starbord ones line up across the boat
When it is all done use a shape modelling knife to trim away excess cartridge paper.
Now comes the really tricky bit.
The Kit Manual, suggests using a scapper to get the decks smooth as sandpapering will drive black paper dust into the grain of the deck planks.
I found this impossible. Either I had the wrong type of scrapper or my tecnique was all wrong.
So.... I sandpapered, carefully, until it was all smooth, The washed the deck, lightly sanded again untill it looked reasonably OK. I found you can just about get away with this.
Whose steam plant are you putting in Topaz?
Good luck
KenP