Green oak for ribs and copper nails obtained from the Boatyard. Green oak stored in a carefully controlled environment to prevent sawn small section 3/8 x 5/8 timber drying out - long wet grass! Oak planed and cut to length and correct cross section, remembering to clean corrosive sap residue from tools.....
Steam box built out of wall paper stripper, laser bottom mast and some gaffer tape worked very well. Ribs steamed for a good 30 minutes and then they bent easily into place . I didn't break any!
Pilot holes drilled with 1.5 mm ( I haven't got any imperial drill bits) before driving 14 gauge copper nails. I can now remove and replace the remaining broken ribs and finish riveting the nails mid week. A very productive days work.