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By: 5th July 2004 at 18:11 Permalink - Edited 1st January 1970 at 01:00
-SCORPENE CONVENTIONAL SUBMARINE
The Scorpene submarine has been jointly developed by DCN of France and Bazan
of Spain. Two Scorpene submarines have been ordered by Chile. Construction
has been started at the DCN shipyard in Cherbourg for the first to be
delivered in 2004, and at the Cartagena shipyard of Bazan in Spain for the
second with delivery in 2005.
SCORPENE FOR THE CHILEAN NAVY
The 1500t Scorpene being built for the Chilean Navy has a length of 66.4m.
It is not being fitted with the air independent propulsion system. The two
vessels are being equipped with four diesel generators providing more than
2,500kW using GM synchronous motors with permanent magnets.
The Chilean Scorpene will not use a towed array sonar but is equipped with a
flank array sonar. The six torpedo tubes will be capable of launching German
SUT torpedoes, F-17 Mod 2 or Mk 48 torpedoes and SM-39 missiles.
WEAPONS
Scorpene is equipped with six bow located 21in torpedo tubes providing salvo
launch capability. Positive discharge launching is by an air turbine pump.
The submarine's weapons include anti-ship and anti-submarine torpedoes and
anti-surface missiles. 18 torpedoes and missiles can be carried, or 30
mines. The handling and loading of weapons is automated.
COMBAT MANAGEMENT SYSTEM
The SUBTICS combat management system, with up to six multifunction common
consoles and a centrally situated tactical table, is collocated with the
platform-control facilities. The combat management system is composed of a
command and tactical data handling system, a weapon control system and an
integrated suite of acoustic sensors with an interface to a set of Air
Surface Detection sensors and to the Integrated Navigation System. The
system can also download data from external sources.
The Integrated Navigation System combines data from global positioning
systems, the log, depth measurement and the ship's trim/list monitoring
system. The Scorpene monitors the environment, including seawater density
and temperature and the submarine's own noise signature.
SONAR
The vessel's sonar suite includes a long-range passive cylindrical array, an
intercept sonar, active sonar, distributed array, flank array, a
high-resolution sonar for mine and obstacle avoidance and a towed array.
CONTROL AND MONITORING
All submarine handling operations are carried out from the Control Room. The
vessel features a high level of automation and surveillance, with automatic
control mode of rudders and propulsion, continuous monitoring of the
propulsion systems and platform installations, centralised and continuous
surveillance of all potential hazards (leaks, fires, presence of gases) and
the status of the installations that affect safety while submerged.
CONSTRUCTION
The submarine incorporates a high level of system redundancy to achieve an
average 240 days at sea per year per submarine. The maximum diving depth is
300m, giving the commander more tactical freedom than previously available
on conventional submarines. There is no limit to the duration of dives at a
maximum depth, other than the power systems and crew limitations. The
structure of the submarine uses high-yield stress-specific steel which
allows for as many dives to maximum depth as necessary.
The use of high-tensile steels has reduced the weight of the pressure hull,
allowing a larger load of fuel and ammunition. The reduced complement
minimises training costs and increase combat efficiency by making more
space, while a larger payload enhances the ship's autonomy.
When dived the Scorpene has low radiated noise which permits improved
detection ranges of its own sensors and reduced risk of detection by hostile
sensors. The low radiated noise is achieved through the use of advanced
hydrodynamics with an albacore bow shape, with fewer appendages and an
optimised propeller.
Between the suspended decks, the equipment is mounted on elastic mountings
wherever possible, and the noisiest systems have a double-elastic mounting
to reduce the risk of their noise profiles being radiated outside the
submarine. The shock-resistant systems have been developed from systems
incorporated in advanced nuclear-powered submarine designs. The low acoustic
signature and hydrodynamic shock resistance give the Scorpene class the
capability to carry out anti-submarine and anti-surface ship warfare
operations in closed or open sea conditions, as well as the capability of
working with special forces in coastal waters.
ACCOMMODATION
The total ship's company is 31 men with a standard watch team of nine. The
control room and the living quarters are mounted on an elastically supported
and acoustically isolated floating platform. All living and operational
areas are air-conditioned. The submarine also has space for six additional
fold-down bunks for special operations crew.
The vessel is especially equipped with all the necessary systems to provide
vital supplies, water, provisions, regeneration of the atmosphere, to ensure
the survival of all the crew for seven days.
The ship is equipped with full rescue and safety systems. A connection point
for a diving bell or Deep Submergence Rescue Vehicle (DSRV) allows
collective rescue operations.
STEALTH
The planning and design of the Scorpene was directed towards achieving an
extremely quiet vessel with a great detection capability and offensive
power.
The forms of the hull, the sail and the appendages have been specifically
designed to produce a minimum of hydrodynamic noise. The various items of
equipment are mounted on elastic supports, which are in turn mounted on
uncoupled blocks and suspended platforms. The isolation also provides better
shock protection to the equipment.
PROPULSION
The Scorpene has two diesel generation sets providing 1,250kW of power,
mounted on an elastically supported platform. At the top of the hull
immediately above the diesel generator sets is a Dutch Breach machinery
shipping hatch. The submarine has an elastically supported 2,900kW
electronic engine.
There are two variants of Scorpene, the CM-2000 with the conventional
propulsion system and the AM-2000 equipped with air-independent propulsion.
The AM-2000 is capable of remaining submerged on underwater patrol for three
times longer than the CM-2000.
AIR INDEPENDENT PROPULSION
A conventional diesel-electrical submarine sailing underwater is difficult
to detect. However the need to come repeatedly to periscope depth to
recharge the batteries using the diesel engine greatly increases
vulnerability by both its aerial detectability, because the snorkel
projecting from the water is detectable by radar, and its underwater
detectability due to increase in radiated noise from the working diesels.
The ratio between this time of greater vulnerability and the total operating
time is known as the "indiscretion rate" and for all conventional modem
submarines the indiscretion ratio ranges typically from 7 to 10% on patrol
at 4 knots, and 20 to 30% in transit at about 8 knots.
To lessen the submarine's vulnerability, the vessel can be equipped with an
air-independent propulsion system such as: the Stirling engine, the fuel
cell, the closed-circuit diesel and the Module d'Energie Sous-Marine
Autonome (MESMA) system .
The MESMA anaerobic system, in which heat in the primary circuit is produced
by burning ethanol with oxygen, can be easily installed either at the start
of the submarine's construction or in a later modernisation to convert the
CM-2000 to an AM-2000 build standard. With the MESMA system the AM-2000
submarine can stay down in underwater patrol three times longer than the
CM-2000. Its performance features remain the same in all other respects,
except that the length increases to 70m and its submerged displacement to
1.870t (against the 61.7m and the 1,565t of the CM2000).
The Scorpene submarine has been jointly developed by DCN of France and Bazan of Spain.
By: 5th July 2004 at 19:09 Permalink - Edited 1st January 1970 at 01:00
-How much would the Amur and the Scorpene cost really?
By: 6th July 2004 at 05:28 Permalink - Edited 1st January 1970 at 01:00
-about $300 mil each. I see no reason for anyone to buy Amur if Scorpene can be had, even with Mesma. for addl money I am sure DCN wouldnt mind fitting the right eqpt to fire Klub missile from torpedo tubes. its a conventionally armed missile.
By: 6th July 2004 at 18:37 Permalink - Edited 1st January 1970 at 01:00
-and if am not wrong the Scorpene class is none other than the French SSN Amethyste class with a diesel-electric propulsion ............
ant the AIP, i'd say go with the Russians and develop the 3rd generation AIP that they indend to develpo or working on and for the present fully develpo the Kristal AIP which is fuel cell .... but unlike the Germans the Russian's did not have much pocket to complete it .... and so do the Russians tested small n-reactors in their subs
k here is a small dia of the Russian fuel cell meant for the Amur ...
By: 6th July 2004 at 18:59 Permalink - Edited 1st January 1970 at 01:00
-and here is a good sectional diagram of the Amur class from the Rubins site and good indeed when pictures on Russian systems on net are deliberately scarse ....
http://www.ckb-rubin.ru/eng/project/submarine/noatompl/img/16a.jpg
(edited it as the pic is large)
and here is the Operation room of the Amur .... but just a question regarding the close vicinity of the perations room and the torpedo room.... is that the case with other submarines too??... i have noticed thats not the case with U-214 , Moray ...
By: 6th July 2004 at 21:25 Permalink - Edited 1st January 1970 at 01:00
-Scorpene (India)
>>Albacore Hull Design
>>Greater Diving Depth 300+ meter
>>Endurance of 55+ days
>>AIP (Indians prefer the German Fuel Cell instead of the untested Mesma)
>> The vessel's sonar suite includes a long range passive cylindrical array, an intercept sonar, active sonar, distributed array, flank array, a high resolution sonar for mine and obstacle avoidance and a towed array.
>> Wepons include various French Torpedoes , Exocet Block 3 (180 Km).The Chilien rejected the Type-209 (1400) the Dolphin class what the Israel have and planning to have 2 more ,in favour of Scorpene ,coz the latter had ,Better Silencing, Greater endurance , better torpedo handling and reload capabilities and increased diving depth.
AFAIK the israeli Dolphin class is a somewhat "special" design outside the lineage of the U209. It, reportedly, has some pretty advanced electronics.
BTW the Portuguese Navy chose the U209PN ( which in reality seems to be a U214, but with better ocean going capabilities) against the Scorpene. 2 subs with an option for another one.
Here's a little pic ( it sure looks like a U214!)
@Srbin: the whole deal, including weapons, tech support and all the usual stuff, will cost about 1000 million euros. The Scorpene offer was also very close ( but I think a little more expensive).
Pricey...
Regards
By: 6th July 2004 at 21:33 Permalink - Edited 1st January 1970 at 01:00
-most people say the U214 is today the best SSK in the business. but
germany wont sell it to hot zones.
By: 7th July 2004 at 18:13 Permalink - Edited 1st January 1970 at 01:00
-k someone bringup that Gorshkov thgread to Navy Thread plzzzzzzzzzzzzzzzzzzzz
By: 8th July 2004 at 01:09 Permalink - Edited 1st January 1970 at 01:00
-Scorpene
@Srbin: the whole deal, including weapons, tech support and all the usual stuff, will cost about 1000 million euros. The Scorpene offer was also very close ( but I think a little more expensive).
Pricey...Regards
Just as a note, the Germans NEVER offered the U-214 to the Chilean Navy (ACH) just the 209.
Heres a picture of the first Scorpene for the ACH (O'Higgins)
Cheers
Posts: 6,186
By: Austin - 5th July 2004 at 18:06
Since India is going to Purchase both the Scorpene SSK in the immediate future as well as Amur SSK to replace the Kilos SSK in the long run as part of P-75 project , Comparative analysis could help us understand which is a better buy ,in terms of capabilities and Finance,Quickly what I can recollect in terms of Capabilities of respective subs are.
Scorpene (India)
>>Albacore Hull Design
>>Greater Diving Depth 300+ meter
>>Endurance of 55+ days
>>AIP (Indians prefer the German Fuel Cell instead of the untested Mesma)
>> The vessel's sonar suite includes a long range passive cylindrical array, an intercept sonar, active sonar, distributed array, flank array, a high resolution sonar for mine and obstacle avoidance and a towed array.
>> Wepons include various French Torpedoes , Exocet Block 3 (180 Km).
The Chilien rejected the Type-209 (1400) the Dolphin class what the Israel have and planning to have 2 more ,in favour of Scorpene ,coz the latter had ,Better Silencing, Greater endurance , better torpedo handling and reload capabilities and increased diving depth.
>> Also if the need be a 700mm Torpedo Tube can be added besides the usual 533mm TT
>> Being Modular in Design It has the Capability to install a small N-reactor in it.
Scorpene
[URL=http://www.google.co.in/search?q=cache:-BWQf0itiJkJ:www.mima.gov.my/mima/htmls/papers/bulletin/articles/submarine.pdf+Scorpene+Submarine&hl=en]Scorpene For The Malaysian Navy(RMN)[/URL]
Why Scorpene For The Chilean Navy
Amur (SSK-India)(1850)
>>The most quitest SSK ( from what i have read about it)
>>Greater Fire Power & Underwater Speed( seen figures of 30 knots on boards)
>>45 days endurance & 250 meteres of Diving depth.(could be more)
>>Bigger Sonar,and better overall sensor capability
>>Good Command and Control , ability to fire Club & Bhramos.
>>Russian AIP.
>> Wepons include Torpedoes UGST ,Klub and Bhramos Cruise missile .
Amur Family Submarine
More on Amurs
[URL=http://www.ckb-rubin.ru/eng/project/submarine/noatompl/]Official Site Of Russian Non-Nuclear Subs[/U