Here is a batch of photos from last week on FPB 64s five and six. We will start with putting lead into the bottom of number five.
Lead pgs are stacked in their entrainment areas.
Then the fun begins.
As lead ballast goes, this is a very simple job. The amount, shape, and mass of the surrounding plate and stiffeners are an easy combination of elements in which to work. Sailboat keels, with lots more lead, complex shapes, and comparatively light structure, are a different story.
When this phase is done, a lid is welded over the lead to keep it isolated from the fuel.
Fresh water tanks are welded out now.
A detail of an inspecton port base. The studs do not penetrate the top plate.
And the fnal step, testing that the tanks are air tight with a manometer.
In the engine room now, looking at the beginning of a hull cooling tank for hydraulic oil.
The lid for the cooling tank is shown above.
Rudder shaft and steering gear shelf are in place.
Moving on to FPB 64-6.
Framing is complete with bulkeads in place and deck plate on.
Finally, a few details on the almost completed flying bridge/great room roof.
Note the round bosses tacked onto the edge detail.
These are tapped to recieve the bases of the surrounding stainless rails. Using a tapped boss eliminates holes through the plating and any chance of a leak. This is typical for all hardware.