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Re: [PSUBS-MAILIST] 20ton/20meter diesel electric psubs on youtube.
Hi Carsten,
Do you plan for a snorkel for CSSX ? Do you plan for a periscope for CSSX ?
I have become very used with those instruments during my use of Kraka, and
plan for UC-3 upgraded versions of the rather crude systems used on Kraka,
but same idea.
On a civilian dieselboat the snorkel is simply a high indtake that allows
the use of compressors and diesels without blowing main ballast tanks. In
bad wheather the snorkel can be very nice, because it allows you to run with
all hatches closed - on surface or submerged to periscope depth to dampen
movements. UC-3 has her engine room sealed from crew space, so in the case
of snorkel valve closure pressure drops does not spread to the crew
compartment.
Kraka had not passed the baltic witout har snorkel. With her one meter
freebord she would have taken wave after wave inside, with predicteble
results.
The TV periscope is an other nice and simple feature. It allows you instant
information about conditions on surface, without blowing tanks again. On
UC-3 I am using high defintion camaras to make the periscope so good that
you can sail safely using it as the only means of lookout. It has the
feature of being placed higher than anything else on the boat, some 4,2
meters above the waterline. That makes it a nice
place to have your eyes...
Kraka has four PAL B/W cameras each covering 90 deg of horisont. Picture is
dieplayed on one screen, and you can shift camera. UC-3 will have the same,
this time collor - but has four screens, and one big screen withe the
picture from the 1080i high def camera / or it can be shiftet to show the
picture form a camera mounted under the bow of the ship.
Best regards,
Peter
----- Original Message -----
From: <MerlinSub@t-online.de>
To: <personal_submersibles@psubs.org>
Sent: Saturday, December 15, 2007 11:58 PM
Subject: Re: [PSUBS-MAILIST] 20ton/20meter diesel electric psubs on youtube.
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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