Showing posts with label Amphibious Ships. Show all posts
Showing posts with label Amphibious Ships. Show all posts

Wednesday, 5 March 2014

Russia to Overhaul Fleet of Amphibious Assault Ships

Russia’s fleet of amphibious assault ships requires extensive modernization because their service life has been largely overextended, Defense Minister Sergei Shoigu said Tuesday.
 
“The Russian navy currently has 19 ships of this type. They have been in service, on average, for more than 25 years,” Shoigu said at a video conference meeting with military commanders.
 
Shoigu said the navy was expected to receive a new Ivan Gren-class landing ship and two French-built Mistral-class helicopter carriers, the Vladivostok and the Sevastopol, through 2015.
 
“However, these additions are not enough, and we have to pay attention to the overhaul of existing [amphibious assault] ships,” the minister said, adding that at least two ships should undergo maintenance and repairs annually.
 
Shoigu’s comments come amid a growing international standoff over Crimea, an autonomous region within Ukraine that refused to recognize new nationalist powers in Kiev that ousted President Viktor Yanukovych in February.
 
Russia’s Black Sea Fleet, which is largely based on the Crimean peninsula, reportedly includes seven aging assault landing ships of the Alligator and Ropucha classes.
 

Tuesday, 4 March 2014

China conducts full-scale island assault exercise with massive amphibious vessels

For the first time, all of the PLA Navy’s three gigantic Type 071 Amphibious Transport Dock vessels were deployed last week in a large naval exercise in the tense South China Sea, simulating in full an island-taking assault.
 
Also participating in the drill were PLAN’s destroyers, frigates, military helicopters and possibly submarines.
The Yuzhao-class Type 071 amphibious transport dock ships are the PLAN’s largest vessels, except for its lone aircraft carrier, the Liaoning.
 
With 20,000-ton displacement, each measures 689 feet long and 92 feet wide.
 
It can carry 15-20 amphibious assault vehicles and 500-800 troops, an ideal vessel for island taking operations

Tuesday, 2 July 2013

France Shows Russia The True Way

Russia recently bought two French Mistral class amphibious ships. Russia has not bought foreign warships for a long time, but this purchase was largely because of an eagerness to acquire Western shipbuilding technology and construction skills. This has already paid off, although not exactly how the Russians had planned. This became evident when a Russian official recently announced that the first Mistral would be built entirely in France. It had earlier been decided to have Russian shipyards build some sections of the first Mistral. It was quickly discovered that the Russian shipyard was not capable of building to the French specifications or do it according to the French timetable. The Russians expected to learn some valuable lessons from the French and, while embarrassing, this was one very valuable lesson. Russian shipyard officials have had their faces rubbed in the embarrassment of not being able to compete with using their current practices. Russian experts on Western production methods and techniques have long complained of the antiquated and inefficient methods still favored by Russian shipbuilders. Navy leaders have been complaining for decades about the poor quality of work coming out of Russian shipyards. The Mistral purchase was to put this to the test.
The Russian Navy has made some changes, in cooperation with the French, of the existing Mistral design. The Russian version of the Mistral will be called the Vladivostok Class and carry 30 helicopters (compared to 16 on the French version). The Vladivostoks will be armed with two AK-630 multibarrel 30mm autocannon for anti-missile defense. There will also be two quad-launchers of shoulder fired type anti-aircraft missiles (with a 5 kilometer range and does well against helicopters) and two or more DP-65 55mm grenade launchers for defense against divers.

The Vladivostoks will also be winterized for use in arctic conditions. The hull will be strengthened to deal with ice and the well deck door will completely close. The flight deck will have a deicing system and the ship will be modified to operate for extended periods in arctic conditions. There is also different electronics and this means a different arrangement of radomes and antennae.

In the aircraft handling areas below the deck, there will be more for the taller Ka-52K and Ka-29 helicopters. The Ka-52K is a navalized version of the Ka-52 that went into production last year. In addition to being equipped with coatings to resist sea water corrosion, the K model will also have a lightweight version of the high-definition Zhuk-AE AESA radar used on jet fighters. This radar currently weighs 275 kg (605 pounds), but the helicopter version will weigh only 80 kg (176 pounds) and enables the Kh-52K to use the Kh-31 anti-ship missile. This weapon has a range of 110 kilometers and travels at high speed (about one kilometer a second). The Kh-52K can also carry the sub-sonic Kh-31 missile, which has a range of 130 kilometers. Both of these missiles weigh about 600 kg (1,300 pounds) each.

Russia is buying two French Mistral class amphibious ships for $1.7 billion and the second one is to be built in Russia, with plenty of French supervision and technical assistance. This is the largest Russian purchase of Western weapons since World War II. The deal was delayed for a long time because the Russians demanded the transfer of shipbuilding and electronics technology (which is now agreed to).

The French navy received the first of the 21,500 ton Mistrals in 2006, with the second one arriving in 2007. Both were ordered in 2001. These two ships replaced two older amphibious landing ships. This gave France a force of four amphibious ships. The two Mistrals are also equipped to serve as command vessels for amphibious operations. The French have been very happy with how the Mistrals have performed.

The Mistrals are similar in design to the U.S. LPD 17 (San Antonio) class. Both classes are about 200 meters (620 feet) long, but the LPD 17s displace 25,000 tons. The French ships are more highly automated, requiring a crew of only 180, versus 396 on the LPD 17. On long voyages on the open ocean, the Mistrals require as few as nine sailors and officers on duty ("standing watch") to keep the ship going.

The Mistrals carry 450 marines, compared to 700 on the LPD 17s. Both have about the same room for helicopters, landing craft, and vehicles (2,650 square meters for the Mistrals, room for nearly a hundred trucks or 60 armored vehicles). Both have hospitals on board, with the Mistrals being larger (69 beds). The American ships however have more sensors installed and larger engines (and thus higher speed). The LPD 17 can also handle vertical takeoff jets like the Harrier or F-35. The French believe that the smaller complement of marines, who are very capable troops, are sufficient for most missions. And the smaller number of people on the ship makes it possible to provide better living and working conditions. This is good for morale and readiness.

One thing American marines and sailors notice about the Mistral is the wider and higher corridors. This came about because the ship designers surveyed marines and asked what ship design improvements they could use. It was noted that in older amphibious ships, the standard size (narrow) corridors were a problem when fully equipped troops were moving out. That, plus the smaller crew size, makes the Mistrals appear kind of empty but very roomy. That, plus larger living accommodations (made possible by the smaller ship's crew and marine complement), make the Mistrals a lot more comfortable. The French ships can be rigged to accommodate up to 700 people for short periods, as when being used to evacuate civilians from a war zone.

After the first two, additional Mistrals for the French Navy are being built using more commercial techniques and are expected to cost closer to $500 million each. France has three Mistrals with several more on order. Russia says it plans to base some of its Mistrals in the Far East, where there is an ongoing dispute with Japan over Japanese islands Russia occupied after World War II and never gave back. The Mistrals will probably show up elsewhere because the Russian fleet is again patrolling the high seas and showing up wherever its government needs some muscle.

Australia Sells Amphibs for Scrap

The Royal Australian Navy’s two Kanimbla class amphibious ships have been sold to a US company for scrap, Minister for Defence Materiel Dr. Mike Kelly announced this week.

Southern Metals LLC, based in New Orleans, concluded the deal with the Australian government May 20, and it was made public by the Australian minister June 24. The selling price was undisclosed due to “commercial in confidence” considerations.

The two vessels, Kanimbla and Manoora, have been languishing in Sydney Harbour since being decommissioned in 2011. A Request for Tender was released to domestic and international markets for their disposal for recycling in June 2012. Earlier plans to sell the hulks as dive wrecks were abandoned following fears of public backlash.

“The disposal of Manoora and Kanimbla by sale has been completed in less than two years from the date the vessels were withdrawn from service, providing the best and most competitive net disposal cost to the commonwealth,” Kelly said.

Disposal of the two ships is subject to US government ITAR restrictions. They will be recycled in accordance with Australia’s environmental standards by 2014.

Kanimbla and Manoora are ex-US Navy Newport class LPDs, purchased in 1994 and locally modified for use by the Royal Australian Navy. In September 2010, the ships were the subject of an operational pause following age-related seaworthiness concerns. As a result, Manoora was prematurely decommissioned in May 2011 and Kanimbla in November of the same year.

Their amphibious capability is being replaced by existing vessels in the interim but will be filled from 2015 with the introduction of the RANs, two 27,000-ton Landing Helicopter Dock ships currently under construction.