Re: [PSUBS-MAILIST] 20ton/20meter diesel electric psubs on youtube.

[MerlinSub@t-online.de]

I am with you - 6000 sm is impossible. 

Even with 2 L per sm its needs 12000 liters of fuel. 
Say 6 knots = 1000 hours = 42 days and nights. 
42 Days of freshwater, wastewater, food etc. 
Say 4 liters a day and crewman of freshwater and two crewman 
8 x 42 Days = 336 liters of freshwater capacity and the same of wastewater. 

so 20 ts = 20,5 metric cubis meter - 15,0 m3 of fuel - 0,7 m3 of water = 
remains 4,8 m3 for equipment and crew - and divided by two crew 
= 2,4 m3 (the size of a phone cell for a crewmember, and all technical equipment 
and for over 40 days.  

I would estimate the range is between 60-600 sm.. 

Euronaut has 500 sm with 1000 Liter of fuel and 4 crewmembers on 48 m3.. 
Okay I can fill the softtanks with diesel and have than 
additional 9000 liter of fuel = additional 4500 sm. All together 5000 sm - 
but can not dive with diesel in the softtanks - and can drive on the surface 
only overwash.. really impractical and rough sea. 

regrads Carsten 


<clientes@tolimared.com> schrieb:
> Hi Ian,
> 
> Whow what a boat! But 6000nm range - not in practice - living space is  
> 20m long which leaves some 1m hull diameter for a 20 tonner (20 cubic  
> meter space) - to stay in for a day - well for a claustrofobic prove  
> charakter - to stay in for a month - or even a weekend - no way! So  
> too small for being really autonomous...
> 
> My prototype was a 20 tonner but not that long and thinn - euronaut is  
> 70 tons - planed for weekend tours - a boat with "live aboard quality"  
> similar to a yacht needs at least 100 tons see BEN FRANKLIN (130 tons).
> 
> By the way your 200 tonner is already aproved by dimar counteradmiral  
> peña firmed the paper i have a meeting with the boss of cotecmar this  
> monday - this will decide if we build in cotecmar or navtech.
> 
> W.Ellmer
> (www.concretesubmarine.com)
> 
> 
> Quoting irox <irox@ix.netcom.com>:
> 
> >
> > 20 meters
> > 20 tons
> > 260hp diesel/electric drive
> > 6000nm range
> >
> > http://www.youtube.com/watch?v=jmSpYzgf of fuel Os8
> >
> > I've not heard of this craft before, does anybody know anything
> > about it?
> >
> > Cheers,
> >  Ian.
> >
> >
> >
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