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Hi Frank,
Thanks for the coments. The drop weight will be 1,500 #. That will offset a
full hard ballast tank of 650# and still create about 850# of positive bouyancy.
It also falls at about 10% of gross weight per ABS guidelines. The front tapered
portion and window seat will only be about 9 - 12 inches long and the base will
accomodate the 39 inch window. To be conservative I have decided not to begin
this portion until I have the completed Wwindow in hand. Greg plans on forming
it in about two weeks. The tapered section and window seat will be completely
fabricated, welded and machined prior to welding the assembly to th sub. This
will keep any weld distortion far from the window seat and will also accomodate
maching the window seat area.
The hard ballast tank assembly will weigh about 1,600#, the window about
145#,and batteries about 1,600#.
This will leave about 3,500# to build soft ballast tanks,skids and all the
internal items controls etc. as well as a reasonable fudge factor. As I get
closer to the finish line I will determine how heavy to make the skids which
will put as much excess weight as possible low.
Best Regards.
Jim K
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