[gurps] Sub Trek

[Onno Meyer]

Jay replied to me:

> > * 160 knots on aquajets (hydrojets) are completely beyond
> > the Vehicles
> >   rules, and supercavitation doesn't look good until it
> > is combined with 
> >   TL11 reactionless thrusters. 
> 
> They wanted fighter planes in the same milleau as the Submarines - and
> taking advantage of the same FX set up.
> 
> I thought the Sub-Fighters were silly.  But the whole set up is silly.

The subfighters are even worse, 300 knots. On the other hand, they
can have a much lower endurance, so supercavitation may be an 
option.

> Aren't there rules for prototypes of higher tech levels?  Or one off
> mad-science gadgets?

I don't want to use such rules - mixed TLs make it more difficult to 
re-use a vehicle.

> Darwin had access to flooded "Habitrail" like tunnels throughout the sub,
> and had an open spot through which he conversed with the human crew
> members.
> 
> Nothing says you can't put a pool cnnected to these tunnels anywhere you
> want.
> 
> My question though is, why doesn't this opening allow water to flood into
> the ship when she dives to higher pressures?

Fit airlocks (sealocks) to the exterior hatches. 

> and the open pools would have to be at the highest points in the system,
> wouldn't they?
> 
> Jay ~Meow!~

No, they'd just have to be at the same level. I can't explain the 
physics in English, but it is the same principle that allows you to
drain fuel from a car with a rubber tube.