History, Politics And Current Affairs

Opinions expressed here are personal views of contributors and do not necessarily represent the companies, organizations or governments they work for. Nor do they necessarily represent those of the Board Administration.
It is currently Mon Sep 25, 2017 2:50 am

All times are UTC - 5 hours




Post new topic Reply to topic  [ 2 posts ] 
Author Message
PostPosted: Fri Sep 08, 2017 7:16 pm 
Offline
User avatar

Joined: Wed Oct 08, 2008 5:49 pm
Posts: 3462
Location: CIVLANT
This is news to me, especially the CMC collaboration with the RN.
Good, bad idea?


https://www.youtube.com/watch?v=6H0ifS-W1jU

Navy moves forward on common missile compartment for future U.S. and U.K. nuclear submarine January 5, 2016 By John Keller

WASHINGTON, 5 Jan. 2016. U.S. Navy strategic defense experts are moving forward on a long-term project to design a future ballistic missile nuclear submarine for the U.S. and United Kingdom.

Officials of the Naval Sea Systems Command in Washington announced an $89.8 million contract modification last month to the General Dynamics Corp. Electric Boat segment in Groton, Conn., for missile tube long-lead time material for the common missile compartment program in support of the Ohio Class Replacement.

The Ohio replacement is being designed to replace the Navy's fleet of Ohio-class ballistic missile submarines -- each of which patrol the world's oceans carrying as many as 24 Trident II missiles as part of the U.S. nuclear deterrent triad that consists of ballistic missile submarines, nuclear bombers, and land-based intercontinental ballistic missiles.

The United Kingdom successor program, meanwhile, will replace the Royal Navy's fleet of Vanguard-class ballistic missile submarines. Long-lead items involve system components that require the longest time to build, which could delay overall system production if money isn't allocated for production early in the process.

The common missile compartment, being designed for the Ohio and Vanguard submarine replacement vessels, will house submarine-launched ballistic missiles in quad-packs aboard future U.S. and United Kingdom missile boats. The common missile compartment carry the UGM-133 Trident II nuclear missile, one of the most advanced submarine-launched atomic missiles in the world.

Officials of the Navy Strategic Systems Programs office in Washington are awarding a potential $99.2 million contract to Lockheed Martin Corp. to integrate the Trident II onto the next-generation ballistic submarine designs of the U.S. and United Kingdom.

Experts at the Lockheed Martin Space Systems segment in Sunnyvale, Calif., are integrating the Trident II missile and reentry strategic weapon system subsystems into the common missile compartment for the Ohio replacement and United Kingdom successor programs.

The U.S. Navy today operates 18 Ohio-class submarines -- 14 of which carry the Trident nuclear missile, and four of which have been modified to carry conventionally armed long-range cruise missiles. Lockheed Martin is prime contractor for the Trident II missile.

Construction of the Ohio-class submarines began in 1976, and the submarines have been in commission at sea since 1981. Construction of Ohio-class submarines ceased in 1997 and submarines of the class are scheduled to be decommissioned and replaced starting in 2029.

The United Kingdom Vanguard-class ballistic missile submarine has been at sea since 1993. The Royal Navy operates four Vanguard-class subs.

Construction of the new Ohio replacement is scheduled to begin in 2021, and the first boat of the class should be commissioned and deployed at sea in 2031.

The Ohio replacement submarine, yet unnamed NOW COLUMBIA , will be 560 feet long -- the same length as the Ohio-class submarines -- and will have 16 missile tubes -- eight fewer tubes than the Ohio class. Plans now call for building 12 Ohio replacement submarines.

Each Ohio replacement boat will displace more than 20,000 tons, cost about $5 billion to build, and cost about $110 million each year to operate. Building the new submarines will be General Dynamics Electric Boat.

The Ohio replacement design effort will borrow from developments in the Virginia- and Seawolf-class attack submarines. Innovations planned for the Ohio replacement include an new electric propulsion system nuclear reactor to reduce maintenance time and costs.

This is a Joint U.S./United Kingdom contract that combines purchases for the U.S. Navy (34 percent) and the government of the United Kingdom (66 percent) under the Foreign Military Sales program.

On this contract modification General Dynamics Electric Boat will do th work in Quonset Point, R.I., and should be finished by December 2019. For more information contact General Dynamics Electric Boat online at http://www.gdeb.com, or Naval Sea Systems Command at http://www.navsea.navy.mil.

_________________
"If you think they’re going to give you THEIR country back without a fight, you are sadly mistaken. ;)


Top
 Profile Send private message  
Reply with quote  
PostPosted: Fri Sep 08, 2017 7:23 pm 
Offline
User avatar

Joined: Wed Oct 08, 2008 5:49 pm
Posts: 3462
Location: CIVLANT
Inside the U.S. Navy’s Next Generation Ballistic Missile Submarine

The Navy has begun early construction and prototyping on a new class of nuclear-armed ballistic missile submarines designed to help ensure global peace by deploying massive destructive power under the sea.
The Ohio Replacement Program, a so-called SSBN, is scheduled to begin construction by 2021. Requirements work, technical specifications and early prototyping have already been underway at General Dynamics Electric Boat.

Designed to be 560-feet– long and house 16 Trident II D5 missiles fired from 44-foot-long missile tubes, ORP will be engineered as a stealthy, high-tech nuclear deterrent able to quietly patrol the global undersea domain.
“This platform is being designed for 42 years of service life. It has to survive into the 2080s and it has to provide a survivable, credible deterrent threat,” Capt. David Goggins, Ohio Replacement Program Manager, told Scout Warrior in an interview.

Construction on the first submarine in this new class is slated to be finished up by 2028, with initial combat patrols beginning in 2031, he added.

Ultimately, the Navy hopes to build and operate as many as 12 new nuclear-armed submarines, to be in service by the early 2040s and serve well into the 2080s. The ship specifications have been completed and the program is preparing for a detailed design phase and initial production contract, Goggins explained.

“I have to make sure I have a detailed manufacturing plan that is executable. Now I’m working on the detailed construction plan,” Goggins said.

Strategic Nuclear Deterrence
Navy officials explain that the Ohio Replacement submarines’ mission is one of nuclear deterrence.
Detailed design for the first Ohio Replacement Program is slated for 2017. The new submarines are being engineered to quietly patrol the undersea domain and function as a crucial strategic deterrent, assuring a second strike or retaliatory nuclear capability in the event of nuclear attack.

The Navy is only building 12 Ohio Replacement submarines to replace 14 existing Ohio-class nuclear-armed boats because the new submarines are being built with an improved nuclear core reactor that will better sustain the submarines, Navy officials have said.

As a result, the Ohio Replacement submarines will be able to serve a greater number of deployments than the ships they are replacing and not need a mid-life refueling in order to complete 42 years of service.
“With the life of ship reactor core, you don’t have a mid-life refueling. This allows our 12 SSBNs to have the same at sea presence as our current 14. That alone is a 40 billion savings in acquisition and life-cycle cost because you don’t have those two additional platforms,” Goggins said.

Electric Boat and the Navy are already progressing on early prototype work connecting missile tubes to portions of the hull, officials said. Called integrated tube and hull forging, the effort is designed to weld parts of the boat together and assess the ability to manufacture key parts of the submarine before final integration.
In 2012, General Dynamics Electric Boat was awarded a five-year research and development deal for the Ohio Replacement submarines with a value up to $1.85 billion. The contract contains specific incentives for lowering cost and increasing manufacturing efficiency, Navy and Electric Boat officials said.

The U.S. and U.K. are together immersed in a common missile compartment effort for ORP. In fact, the U.S. and U.K. are buying parts together for the common missile compartment and working on a $770 million contract with General Dynamics’ Electric Boat. The U.S. plans to build 12 ORPs, each with 16 missile tubes, and the U.K. plans to build four nuclear-armed ballistic submarines, each with 12 missile tubes.

Next-Generation Technology
The ORP is being designed with a series of next-generation technologies, many of them from the Virginia-Class attack submarine. Leveraging existing systems from current attack submarines allows the ORP program to integrate the most current technologies and systems while, at the same time, saving the developmental costs of beginning a new effort, Goggins explained.

In particular, the ORP will utilize Virginia-class’s fly-by-wire joystick control system and large-aperture bow array sonar. Sonar technology work by sending out an acoustic ping and then analyzing the return signal in order to discern shape, location or dimensions of an undersea threat. “The large aperture bow array is water backed. There is no dome and it has very small hydrophones. It is a better performing array, but more importantly it is not air backed. When you have an air-backed array, you have transducers that need to be replaced every 10 years,” Goggins explained.

Previous sonar technologies present higher maintenance costs, whereas large aperture bow arrays can bring both higher performance as well as lower life-cycle costs, he added. “This enables lower operations and sustainment costs because these transducers and hydrophones last for the life of the ship,” Goggins explained.
The submarines combat systems from Virginia-class attack submarines are also being integrated into the new Ohio Replacement Program submarines. The subs combat systems consist of “electronic surveillance measures,” the periscope, radios and computer systems, Goggins explained.

The new ORP subs will also utilize an automated control fly-by-wire navigation system, a technology that is also on the Virginia-Class attack submarines.

“The ship’s control system allows the operator to put information into a computer about the course and depth for the submarine. A computer algorithm maintains that course and depth by sending a signal to the rudder and the stern,” Goggins said.

Goggins also explained that the shafts of the new submarines are being built to last up to 10 or 12 years in order to synchronize with the ships maintenance schedule. Existing shafts only last six to eight years, he explained.

The ORP will also use Virginia-class’s next-generation communications system, antennas and mast. For instance, what used to be a periscope is now a camera mast connected to fiber-optic cable, enabling crew members in the submarine to see images without needing to stand beneath the periscope. This allows designers to move command and control areas to larger parts of the ship and still have access to images from the camera mast, Electric Boat and Navy officials said.

The Ohio Replacement Program is also engineering a new electric motor for the submarine which will turn the shaft and the rotor for the propulsion system. The new motor will make propulsion more efficient and potentially bring tactical advantages as well, Goggins explained.

Lawmakers are working on a special fund created to pay for the Navy's expensive next-generation nuclear-armed ballistic missile submarines. Members of Congress have recently discussed the details of the National Sea-Based Deterrence Fund, a special effort established in 2015, at a recent hearing on the topic. The fund was established as a way to allocate specific acquisition dollars to pay for the new submarines. In total, the Navy hopes to buy 12 of the new submarines to serve into 2085 and beyond.

Production for the lead ship in a planned fleet of 12 Ohio Replacement submarines is expected to cost $12.4 billion — $4.8 billion in non-recurring engineering or development costs and $7.6 billion in ship construction, Navy officials have said.

The Navy hopes to build Ohio Replacement submarine numbers two through 12 for $4.9 billion each in 2010 dollars.
Kris Osborn became the Managing Editor of Scout Warrior in August of 2015. His role with Scout.com includes managing content on the Scout Warrior site and generating independently sourced original material. Scout Warrior is aimed at providing engaging, substantial military-specific content covering a range of key areas such as weapons, emerging or next-generation technologies and issues of relevance to the military. Just prior to coming to Scout Warrior, Osborn served as an Associate Editor at the Military.com.

_________________
"If you think they’re going to give you THEIR country back without a fight, you are sadly mistaken. ;)


Top
 Profile Send private message  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group