Re: [PSUBS-MAILIST] Re: Russian Sub Sunk

[MerlinSub@t-online.de (Carsten Standfuß)]

Hi, 

a russian MI-10 Sky crane helicopter is able to carry a payload of 12 t 
outside. A MI-12 is able to carry 25-30 t inside (and maybe outside). 
its takes about 45 Minutes from Murmansk to K 141 with this helicopters. 
Maybe I miss something.. or the helicopters all gone.. or LR5 is to
heavy ?

And if they had one or two torpedoexplosion on board - 
- and the compartment bulkheads were not closed -
most of Commander Gennadii Liatschin's crew were died 
before the sub hit the bottom.  

To lift the boat total or only the stern with ballons or pontons
is no option - it takes much to long and needs good weather during the
hole operation. Also its no option for the injured seaman's. A angle
of this size in a submarine of this size without a ladder is a hard
number 
to go.   

The Oskar's have an own rescue-bell on Board, its near or inside the
sail.
They didn't use it - indicates that in this area nobody is still alive
or this
compartment is filled with water. The stern located rescue hatch with
the DSRV
and dive-bell connector is there last option. 
The deep of the sea here is 108 m the high of the hull is 15 m .. so the
deep of this hatch is about 93 m (or 300 feet). 
Northsea-Offshore-trimix-divers and personal one to one rescue is also a
option but also not easy a hard figure. (needs s-o-m-e Offshore subs
with diving compartment near the sunken sub for the deco-time.)  

There were an other russian submarine accident some years before and 5
man use this bell from 1500 m deep. It goes up to the surface in just 2
minutes. Unfortunatly there was a overpresssure in the bell and the
hatch blow up on the surface. One man was blown out and survifed but the
other 4 sunk with the immidatley flooding bell. 

The russian has own DSRVs on the India class rescue submarines. Two
DSRVs
on each India. Unfortunatly most of the Indias are "Out of Order" and I
have 
seen pictures of some of the about 12 DSRVs on a scrappplace..

To build a DSRV which work under every angle is not a real problem.. A
trim system for about 45 degrees in both directions (stern-bow) 
and a hatch on the keel and an other hatch on the stern or on the bow
will
do the job. The connection bell on most modern DSRV is a own part which
can removed and changed in very short time for differnt sizes - and
maybe - different angles. 

But the greatest problem is time. If they were on Alarm - or Battle
station during the exersize and the watertight-bulkhead were sealed -
some of the crew maybe still alive. 

I think - for the furture - the best rescue system will be a mixture
between 
a DSRV and a big seaplane - special built - with a seahangar and a
bottom door. 
Not a real tec problem - but very expensive. This system can go very
quick and deep.  

Carsten. And the CO2 scrubber system on CSSX will work longer than the
oxygen 
bottles support the crew. So the died will come as sleep mode. If you
died on 
CO2 poison the died will come very hard. 


VBra676539@aol.com schrieb:
> 
> Stan,
> 
> No. Hull is GRP. I've been aboard a couple of the L-boats over the years. No
> ribs. No steel. Just fiberglas. I know that one of them had a Perry built
> lockout chamber that was steel, but don't remember whether it was 5 or not.
> But the steel can was bolted into the GRP hull.
> 
> Vance