[FT] Troop transports

Looking back in the archives (
http://lists.firedrake.org/gzg/199811/msg00947.html ), Mike Elliot
suggests that 1 FB mass should be about 20 Cargo Space from MT (pg
15), with a note that a size 3 vehicle will occupy 60 tons (4CS/size x
Size 3 = 12, 12CS/CS/mass = 0.6 mass, and 1 FB mass =100 tons), and
"that seems about right."
On the other hand, a Bradley is, AFAIK, about the same size hull, and
weighs in at 25 tons, so maybe a class 3 vehicle should be 25 tons.
Four of them would fit neatly into a 100 ton FT mass; four times 12 CS
= 48CS.

And MT says that a troop who is awake (ie, not a Marine-sicle) will
need four CS.  That means 5 guys per Mass, which means 1 man per 20
tons.  Even including life support and such, that seems like a lot.
Queen Elizabeth was 83,000 tons, and in her troop transport days she
could carry 15,000 troops (hot-bunking and stacked six high, but
still...).  Even assuming that her *entire* mass was devoted to
"troops capacity" (ie no hull, no engine) that's 5.5 tons per man.
Let's say instead that she had a Fragile hull, MD2 and FTL, and
everything else was barracks space-- that works out to roughly 4 tons
a man.	Let's double that to account for life support and a little
more room for the lads.  That would make 8 tons per troop, which means
about 12 of them would fit into a FT mass...which again works out to
4CS per man x 12 men =~ 48CS per FT mass.

Coincidentally, MT suggested 50CS per Mass...even though FB ships are
bigger than original FT ships, maybe it'd be as well to stay with 1
Mass = 50 CS.  Comment?