"Scotty" wrote in news:43e6069f$0$25070$cd3e3bf6
@news.enter.net:

How much space is between the 2 hulls?

SV


The one I'm most familiar with is a relatively small 50,000 Dwt, double
bottom (not dbl hull) tanker.
The dbl bottom tanks had @8' of headroom, i.e. they were walk around,
though there was a good deal of framing which frequently required climbing
through limberholes to move through sections.
Generally, these tanks are used for ballast, so they are quite large and
there size will depend on the size of the ship.

otn