REPOST: FFS: SDB Floats

By Steven M Bonneville ·

TML message #7898From bundle 628Read the whole thread (2 messages)

In reply to #7866 GEN,VDES:Sub-Oceanic SDB Concealment. by Les Howie
A slain message, trying to return from the dead....

Les Howie [email removed] writes:

>How do you submerge an SDB to hide under the world's oceans?
[. . .]
>The TNE 400 Ton SDB has a volume of 5600 m^3, and a laden mass of 4886.17
>tonnes, for a specific gravity at 1G of .86.  It Floats!

Oh yuck.  The MT 400 d-ton SDB had a specific gravity of about 2.0 laden,
so it wasn't a problem before.  You could give up some of the hydrogen fuel
storage and flood those fuel tanks with water, er, "unrefined fuel".  It
would take 29 G-turns worth to bring the SDB's specific gravity to just
over 1.0.  That would add about 725 tonnes of mass to the ship.  Since the
SDB has 112 G-turns, I suppose you could pay the price.

Seems to me that you'd be better served adding armor to the hull and getting
some added value out of the mass -- besides, superdense armor is more compact.
But maybe there'd be some value in "crash surfacing" with this design.

  Steve Bonneville
  [email removed]