Hello Ed:
Yes, that raised section of the deck has an aluminum plate underneath. Both for the port and starboard deck organizers. Also, I have similar plates in the areas where the cabin top winches are located. These plates were great to have when I rearranged winch location and added hardware to the cabin top for better sail control from the cockpit. I just used taps to make threads in the plate for SS machine bolts 3/16" or 1/4" as the case may be.
Doesn't seem you needed to be too attentive that day on the Chesapeake! I see that there was so much wind, assigning the boom vang to "jibe-preventer" duty was necessary.
Thanks for the picture. From it, I now see that the inverted "U" fitting hanging from the bottom of my boom about 5' back from the gooseneck was intended for a boom vang. Maybe this is the fitting that about a year or so ago failed on Blaise and took his entire boom with it?
When deciding how to attach my boom vang addition, I first thought about using that fitting. But it looked weak - - particularly after almost 30 years of Al versus SS galvanic corrosion in the area. The attached pic (which I've posted before) was my boom to vang attachment solution. Again, due to Nautical Flea Market "opportunities", the boom bails that I used were not cost prohibitive. Subsequently, however, I've upgraded the blocks. But you get the idea. In the pic, on the underside of the boom, aft the hanging rope loop just, further aft of the upper fiddle block, you can see my "U" fitting doing only cosmetic duty.
regards,
rardi