The final 20 frames are made and ready for fitting to the Keel and Garboard Strake assembly - 10 for each end of the model. of the fist 10, each is clamped in place and solder applied.  The full set is then clamped together with comb clamps to several  of the frames of the centre section, to space them out before the Sheer Strake, Deck Stringer and Gunwale bar are soft soldered in place.  After which the deck stringers are fitted to the tween deck beams.  As these are notched to take each frame they assist in holding the frames in place when the comb clamps are removed.