Upper Deck Beam #12
Note inner Carling needs adapting to take the Pin of the Main Jeer Bitt- a simple notch but as it is will be a weakened area/joint, I reinforced it with superglue to underside before fixing in position.
Beams #13 and #14-regular, but inner Carling gap is narrower at 24mm to accommodate the Capstan Step-
This is a solid plank between Beams 14 and 15.
Size given as 10.07mm X7.42mm with a hole of 2.65mm to receive the Spindle of the Capstan.
This hole DOES NOT go through the but to a depth suggested of +/- 2.5mm.
The aft side is let down on Beam#15 by 3.71 so that a similar hight sits above the beam.
Note this aft side only covers half the Beam width.The fore side is semicircular, similarly let down, but extends slightly foreward of the Beam it overlaps {#14)
Along either side are Support Pieces, 7.95x5.3mm.
These are also let down so their upper surfaces are in line with the Step.
TFFM mentions them probably fitting into a Rabbet on the sides of the central plank, but having cut them to size already, I realized that to fit into the Rabbit would narrow them significantly.
I fixed the Plank and Side pieces together and then milled the letting down as a unit.
The underside area is rounded upto “Fay” with the Beams curvature.
TFFM points out that the upper surface would have to be horizontal to allow the Capstan to turn- the illustration shows the Let Down of the sides where it sits on the Carlings, to be angled. I can’t see how this can be done unless the Let Down on Beams #14 ans 15 are different.
I took an easy way out and,copying the angle between the beams, set the Step in the mill and “scimmed” off to the horizontal.
It leaves the piece thinner, but the same above the beam level.
( Worth noting that in this, and some other things such as the depth of the spindle hole, the Sheer and Profile plans differ)