MIRS (Russian)
: better
interior volume and viewport arrangement
: Considered
the most advanced submersibles <-- more than 1
: Design:
"they remind one more of an aircraft than a marine vehicle
: Unique
Variable ballast system
: Carry nickel shots for emergencies
: Battery: NiCd
: main pressure
hulls: maraged steel (made of high nickel steel alloy)
(denser
than Ti but does not require as thick a cross section <-- so
weight is
comparable
: safety factor of 2.0 at 6000 m <-- how
is this determined?
: 2.1 m inside
diameter
: self
contained battery handling system and skid system <-- ?
: two pilors
and operation of navigation system requires two people
Nautile
: Light weight,
streamlined <-- fast ascent/descent rates
: fits 3
people: a pilot, a navigator, and one observer
: simple
variable ballast system: basedon floodable tanks & droppable
steel shot
: Pressure hull
design like Mir: two hemispheres sealed w/ an o-ring
: All hatch anv
viewport inserts are o-ring sealed vice welded
: propulsion
recendly modified for direct lateral motion
Consul (Russian)
: Very heavy,
Ti for everything, very beamy. Not very good.
Shinkai 6500
: viewport
overlap comparible to ALVIN but not as good as on Mirs or (Japan)
Nautile
: Silver-zinc
batteries <-- expensive