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Bangladesh Navy

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Asian Defence News: China upgraded aging North Sea Fleet Ming-class submarine force in November 2014

"Ming" class submarines for China's self-developed the first generation of conventionally-powered submarine torpedo attack. It was my main naval submarine force. Although conventional Ming-class submarines have been improvements, but still has lagged behind its combat power. According to the article Here, the North Sea Fleet submarine force and new equipment has been fitted out in November last year, may be the new 039B-class submarines.
 
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Russia is negotiating with Bangladesh for the supply of frigates "Cheetah 3.9"

Russia is looking for new arms markets: "exporters on a plateau"
"The shipyard builds Selenodolsk two frigates of the project 3.9 for the Vietnamese naval forces. At the moment the order has been fulfilled, it will be installed weapons "Fatychow said on Tuesday at the forum" maritime industry ", held in Moscow from 19 to 21 May, told RIA Novosti.

In addition, Russia is negotiating with Bangladesh for the supply of frigates "Cheetah 3.9" to this republic.

"It is by working co-operation with the Republic of Bangladesh. "Rosoboronexport" (the government of Russia for military equipment exporter - Red.) Negotiates about possible deliveries of ships 3.9 (Project 11661). For now, it comes to the delivery of two ships ", remarked Fatychow.

Frigates 3.9 of Cheetah class are an export version of the guard vessels of the project 11661, which will be built in the shipyard Zelenodolsk in the Russian republic of Tatarstan.

The project 11661, also known as Cheetah class, is a class of frigates russischen- and Vietnamese Navy.
 
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Russia is negotiating with Bangladesh for the supply of frigates "Cheetah 3.9"

Russia is looking for new arms markets: "exporters on a plateau"
"The shipyard builds Selenodolsk two frigates of the project 3.9 for the Vietnamese naval forces. At the moment the order has been fulfilled, it will be installed weapons "Fatychow said on Tuesday at the forum" maritime industry ", held in Moscow from 19 to 21 May, told RIA Novosti.

In addition, Russia is negotiating with Bangladesh for the supply of frigates "Cheetah 3.9" to this republic.

"It is by working co-operation with the Republic of Bangladesh. "Rosoboronexport" (the government of Russia for military equipment exporter - Red.) Negotiates about possible deliveries of ships 3.9 (Project 11661). For now, it comes to the delivery of two ships ", remarked Fatychow.

Frigates 3.9 of Cheetah class are an export version of the guard vessels of the project 11661, which will be built in the shipyard Zelenodolsk in the Russian republic of Tatarstan.

The project 11661, also known as Cheetah class, is a class of frigates russischen- and Vietnamese Navy.

This is also known as the Gepard Class - but could be largely speculative. Gepard class is now outdated.

In my opinion the Steregushchiy class corvette (2000T) is a far better choice for Bangladesh if we buy Russian.


Steregushchiy class is more modern and kind of an analog to the Chinese 056 class - but way heavily armed, almost to the level of a frigate. I'd replace the Kashtan CIWS system though. Way too complicated for Bangladesh situation.

This corvette has a 'composite' (fiberglass?) superstructure - reducing radar signature.

Indonesia negotiated in 2011 to buy two but in the end bought turkish Milgem Class.

However they have sold two to Algeria.
 
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This is also known as the Gepard Class - but could be largely speculative. Gepard class is now outdated.

In my opinion the Steregushchiy class corvette (2000T) is a far better choice for Bangladesh if we buy Russian.


Steregushchiy class is more modern and kind of an analog to the Chinese 056 class - but way heavily armed, almost to the level of a frigate. I'd replace the Kashtan CIWS system though. Way too complicated for Bangladesh situation.

This corvette has a 'composite' (fiberglass?) superstructure - reducing radar signature.

Indonesia negotiated in 2011 to buy two but in the end bought turkish Milgem Class.

However they have sold two to Algeria.

no Milgem deal, as Indonesia finally chose to order two enlarged SIGMA class light frigate. And right now is in building process at Indonesian Shipyard facility, mid 2016 we can see the finished construction.
 
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no Milgem deal, as Indonesia finally chose to order two enlarged SIGMA class light frigate. And right now is in building process at Indonesian Shipyard facility, mid 2016 we can see the finished construction.

Is this the DAMEN design that looks similar to the 056 class? Please post renders.
 
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Is this the DAMEN design that looks similar to the 056 class? Please post renders.

the overall layout of 10514 frigate will be not much different with the 10513 SIGMA light frigate class of Marocco Navy

frigate_boat.ashx


except our frigate will be armed with CIWS too and more spacious deck and cabin crew
 
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the overall layout of 10514 frigate will be not much different with the 10513 SIGMA light frigate class of Marocco Navy

frigate_boat.ashx


except our frigate will be armed with CIWS too and more spacious deck and cabin crew

Yup that's one heck of a sleek looking boat. :smitten:

What I understand the number denotes the length and width in meters. So Indonesian Sigma 10514 frigate will be 105 meters long and 14 meters wide (a meter wider and the same length as the Moroccan class.

Gepard-class was already rejected once during the purchase of BNS BB....

I don't know who on earth would buy Gepard. That class is so old it doesn't even have a heli-deck in the back, much less a storage hanger.
 
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DEW completes keel-laying for eight Bangladesh Navy high-speed patrol boats
Mrityunjoy Mazumdar, Alameda, California - IHS Jane's Navy International
02 June 2015

1633824_-_main.jpg

An artist's illustration of the BN's X12 high-speed patrol boat to be built by DEW Narayanganj. Source: DEW



Key Points
  • The Bangladesh Navy-owned shipyard DEW has laid keels for eight new X12 high-speed patrol boats
  • The boats are being built to the PT Lundin (North Sea Boats) X12 design
Dockyard and Engineering Works (DEW) Narayanganj, the Bangladesh Navy (BN)-owned shipyard, announced recently that it held a keel-laying ceremony for eight high-speed patrol boats for the BN.

The boats are being built to the X12 design under a technology transfer arrangement with Indonesia's PT Lundin (North Sea Boats), which secured a contract to supply 18 boats to the BN and the Bangladesh Coast Guard in 2014. The contract is valued at IDR75 billion (USD6 million), according to Indonesian media reports. IHS Jane's reported in November 2014 that this contract also has an option clause for 10 more boats.

The fully composite X12 design is based on PT Lundin's X15 patrol boat concept, itself derived from the Swedish Combat Boat 90 (CB90) concept. The use of advanced composites in constructing the high-speed patrol boats to Bureau Veritas classification rules will be a first for DEW.

PT Lundin's X12 design (what is perhaps a new monohull design) is being built in two variants for Bangladesh - a 'combat boat' version for the navy and a full cabin variant for the coastguard. PT Lundin confirmed to IHS Jane's that two X12 craft for the Bangladesh Coast Guard were completed earlier this year at its facility in Banyuwangi, Indonesia.

A graphic of the patrol boats, released by DEW, shows a full cabin superstructure instead of the truncated superstructure arrangement on the X15. At the same time, ceremonial banners and data boards from the keel-laying ceremony on 24 May clearly show the 'combat boat' variant of the X12.

The X12 boats are 11.7 m long and 3.5 m in beam, draw 0.835 m of water, displace 10.2 tonnes fully loaded, and have a top speed of 35 kt. They have a waterjet propulsion system powered by two Volvo Penta engines producing 320 kW at 3,500 rpm, which drive the waterjets through ZF gearboxes. Electrical power is provided by two 6 kW Cummins diesel generators. The boats are equipped with two 765-litre fuel tanks.

The boats are likely to be fitted with two or more machine guns - one mounted amidships atop the cabin and the other(s) mounted aft on the deck. The DEW graphic also shows a small mast-mounted radar.

While the DEW release did not provide details on delivery schedules, Indonesian media reports (citing PT Lundin sources) suggest that the boats will likely be completed in about 12 months or so, using a parallel construction approach.

DEW completes keel-laying for eight Bangladesh Navy high-speed patrol boats - IHS Jane's 360
 
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DEW completes keel-laying for eight Bangladesh Navy high-speed patrol boats
Mrityunjoy Mazumdar, Alameda, California - IHS Jane's Navy International
02 June 2015

View attachment 227399
An artist's illustration of the BN's X12 high-speed patrol boat to be built by DEW Narayanganj. Source: DEW



Key Points
  • The Bangladesh Navy-owned shipyard DEW has laid keels for eight new X12 high-speed patrol boats
  • The boats are being built to the PT Lundin (North Sea Boats) X12 design
Dockyard and Engineering Works (DEW) Narayanganj, the Bangladesh Navy (BN)-owned shipyard, announced recently that it held a keel-laying ceremony for eight high-speed patrol boats for the BN.

The boats are being built to the X12 design under a technology transfer arrangement with Indonesia's PT Lundin (North Sea Boats), which secured a contract to supply 18 boats to the BN and the Bangladesh Coast Guard in 2014. The contract is valued at IDR75 billion (USD6 million), according to Indonesian media reports. IHS Jane's reported in November 2014 that this contract also has an option clause for 10 more boats.

The fully composite X12 design is based on PT Lundin's X15 patrol boat concept, itself derived from the Swedish Combat Boat 90 (CB90) concept. The use of advanced composites in constructing the high-speed patrol boats to Bureau Veritas classification rules will be a first for DEW.

PT Lundin's X12 design (what is perhaps a new monohull design) is being built in two variants for Bangladesh - a 'combat boat' version for the navy and a full cabin variant for the coastguard. PT Lundin confirmed to IHS Jane's that two X12 craft for the Bangladesh Coast Guard were completed earlier this year at its facility in Banyuwangi, Indonesia.

A graphic of the patrol boats, released by DEW, shows a full cabin superstructure instead of the truncated superstructure arrangement on the X15. At the same time, ceremonial banners and data boards from the keel-laying ceremony on 24 May clearly show the 'combat boat' variant of the X12.

The X12 boats are 11.7 m long and 3.5 m in beam, draw 0.835 m of water, displace 10.2 tonnes fully loaded, and have a top speed of 35 kt. They have a waterjet propulsion system powered by two Volvo Penta engines producing 320 kW at 3,500 rpm, which drive the waterjets through ZF gearboxes. Electrical power is provided by two 6 kW Cummins diesel generators. The boats are equipped with two 765-litre fuel tanks.

The boats are likely to be fitted with two or more machine guns - one mounted amidships atop the cabin and the other(s) mounted aft on the deck. The DEW graphic also shows a small mast-mounted radar.

While the DEW release did not provide details on delivery schedules, Indonesian media reports (citing PT Lundin sources) suggest that the boats will likely be completed in about 12 months or so, using a parallel construction approach.

DEW completes keel-laying for eight Bangladesh Navy high-speed patrol boats - IHS Jane's 360

I believe most high speed patrol boats up to 500 tonnes displacement in Bangladesh Navy/Coast Guard should use waterjets like this mini ten tonne class. However larger waterjets (Rolls Royce Ka-Me-Wa is a famous vendor, image below) are expensive technology and not used in all smaller coast guard or Navy marine craft yet. Within a decade's time - waterjet will become more common as they afford effectively double the speed.

Along with roll-stabilizing trim tabs for high speed control, they will afford revolutionary stability in locally made marine craft at speeds in excess of 35 knots. Videos below show what a trim tab does and how a waterjet works.


1024px-Pori_waterjets.JPG


 
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I believe most high speed patrol boats up to 500 tonnes displacement in Bangladesh Navy/Coast Guard should use waterjets like this mini ten tonne class. However larger waterjets (Rolls Royce Ka-Me-Wa is a famous vendor, image below) are expensive technology and not used in all smaller coast guard or Navy marine craft yet. Within a decade's time - waterjet will become more common as they afford effectively double the speed.

Along with roll-stabilizing trim tabs for high speed control, they will afford revolutionary stability in locally made marine craft at speeds in excess of 35 knots. Videos below show what a trim tab does and how a waterjet works.


1024px-Pori_waterjets.JPG



Baynunah Class corvettes, which are 900+tons already use them. It's a very useful technology!

Baynunah Class Corvettes - Naval Technology
 
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