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US Navy Preps to Build New Amphibious Assault Ship

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Navy Preps to Build New Amphibious Assault Ship
Navy Preps to Build New Amphibious Assault Ship | Defense Tech

Amphib-LXR.jpg


The Navy is getting ready to take the next step in its ongoing competition to build a new amphibious assault ship for the service, officials said.

Called the LX( R ), the new amphib will replace the Navy’s existing fleet of LSD 41/49 dock landing ships in the 2020s and 2030s, said Navy spokesman Matthew Leonard.

“LX( R ) will be a versatile, cost-effective amphibious ship — a success story in balancing cost and requirements while delivering key capabilities. Competition will play a prominent role in the LX( R ) acquisition strategy,” he said.

The Navy plans to award the detail design and construction contract for the lead ship by fiscal year 2020 with delivery planned for fiscal year 2026, Leonard added.

The 1980’s era LSD dock landing ships consist of eight Whidbey Island-class 609-foot long ships. The 15,000-ton ships, configured largely to house and transport four Landing Craft Air Cushions, or LCACs, are nearing the end of their service life.

Both the LSD and the San Antonio-class LPD 17 amphibious transport docks are integral to what’s called an Amphibious Ready Group, or ARG, which typically draws upon a handful of platforms to ensure expeditionary warfighting technology. The ARG is tasked with transporting up to 2,200 Marines and their equipment, including what’s called a Marine Expeditionary Unit, or MEU.

The current configuration of the LPD transport dock is slightly different than the LSD dock landing ship in that it has more aviation capability, more command and control equipment, a crane for use on small boats and a different well deck configuration, Navy officials said.

The LPD is designed to operate with greater autonomy from an ARG and potentially conduct independent operations as needed. A LSD is able to operate four LCACs and the more autonomous LPD 17 can launch two LCACs.

The new LX® amphib, to be based on an LPD 17, will be designed for independent operations, greater aviation capability and additional command and control technologies when compared with the existing fleet of LSDs, Navy officials said.

“After thorough analysis, the Department of the Navy has determined that using a derivative of the LPD 17 hull form is the preferred alternative to meet LX® operational requirements,” Leonard explained.

Basing the ship on a LPD 17 – as opposed to starting from scratch with a new ship design – helps the existing industrial base and gives the Navy more options to keep costs lower, service leaders said.

“That ship is a good ship and we want to be able to continue to buy that ship. We did cost reduction initiatives to get the ship down under cost. We are on a good track to do that. When we get this ship out in the fleet I think it is going to be a great ship side by side with the LPD 17s,” Marine Corps Maj. Gen. Robert Walsh, director of expeditionary warfare for the Navy, said recently at the Surface Navy Association annual symposium in Arlington, Va.

The LSD, which is key to bringing a lot of equipment from ship to shore in LCACs, does not have the same ability to operate independently of an Amphibious Ready Group compared to the LPD 17.

“The LPD has more robust aviation capability. It still has a well-deck but it is not able to carry as much equipment as an LSD ship. LPD has the command and control and aviation capability to operate independently. The LSD is a cargo ship designed to support the big-deck amphibious assault ship in the ready group,” a Navy official told Military.com last summer.

Having more amphibs engineered and constructed for independent operations is seen as a strategic advantage in light of the Pacific rebalance and the geographical expanse of the region. The widely dispersed territories in the region may require a greater degree of independent amphibious operations where single amphibs operate separately from a larger ARG.

Also, the LPD is able to transport up to four CH-46 Sea Knight helicopters or two MV-22 Ospreys. The Navy had been planning on maintaining only 11 LPDs in the fleet, however additional funding has allowed the service to procure a long-desired 12th LPD, Navy officials said.

Overall, the Navy’s need for amphib continues to outpace the amount of ships available for missions, many Navy and Marine Corps leaders have said.

Recognizing what the Navy has said about its plans and intentions for the new ship, Newport News Va.-based Huntington Ingalls Industries has already unveiled its offering for the LX® competition, calling it the LPD Flight IIA.

The Navy’s LSD dock landing ships are built to house four LCACs or three larger Landing Craft Utility vehicles or LCUs. The ships can also transport up to 36 amphibious assault vehicles. Also, the LSDs have four diesel engines and a helicopter platform with no hangar.

Huntington Ingalls executives say they modified their design to meet the Navy’s adjusted requirements for the LX( R ).

“We deleted the composite mast and deleted the aft house. We took the Marines down to 500 and took half of the medical space away. We took four engines down to two,” said Mike Duthu, director of new Navy programs, Huntington Ingalls. “We deleted a generator, deleted the electrical load topside and we also made some of the systems simpler.”

The Huntington Ingalls design is aiming to propose a ship that is capable of independent operations, aviation missions and extensive command and control technologies, Duthu added.

For example, their offering adds an aviation hangar to the platform in order to better enable sustained independent aviation operations.

“This (LPD Flight IIA) would be our concept going in to LX( R ) as to what we would offer for the Navy’s consideration. We understand that LXR is going to be a competition and that the Navy intends to compete LX( R ),” he said.


LPD Flight IIA
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Navy Preps to Build New Amphibious Assault Ship
Navy Preps to Build New Amphibious Assault Ship | Defense Tech

View attachment 187624

The Navy is getting ready to take the next step in its ongoing competition to build a new amphibious assault ship for the service, officials said.

Called the LX( R ), the new amphib will replace the Navy’s existing fleet of LSD 41/49 dock landing ships in the 2020s and 2030s, said Navy spokesman Matthew Leonard.

“LX( R ) will be a versatile, cost-effective amphibious ship — a success story in balancing cost and requirements while delivering key capabilities. Competition will play a prominent role in the LX( R ) acquisition strategy,” he said.

The Navy plans to award the detail design and construction contract for the lead ship by fiscal year 2020 with delivery planned for fiscal year 2026, Leonard added.

The 1980’s era LSD dock landing ships consist of eight Whidbey Island-class 609-foot long ships. The 15,000-ton ships, configured largely to house and transport four Landing Craft Air Cushions, or LCACs, are nearing the end of their service life.

Both the LSD and the San Antonio-class LPD 17 amphibious transport docks are integral to what’s called an Amphibious Ready Group, or ARG, which typically draws upon a handful of platforms to ensure expeditionary warfighting technology. The ARG is tasked with transporting up to 2,200 Marines and their equipment, including what’s called a Marine Expeditionary Unit, or MEU.

The current configuration of the LPD transport dock is slightly different than the LSD dock landing ship in that it has more aviation capability, more command and control equipment, a crane for use on small boats and a different well deck configuration, Navy officials said.

The LPD is designed to operate with greater autonomy from an ARG and potentially conduct independent operations as needed. A LSD is able to operate four LCACs and the more autonomous LPD 17 can launch two LCACs.

The new LX® amphib, to be based on an LPD 17, will be designed for independent operations, greater aviation capability and additional command and control technologies when compared with the existing fleet of LSDs, Navy officials said.

“After thorough analysis, the Department of the Navy has determined that using a derivative of the LPD 17 hull form is the preferred alternative to meet LX® operational requirements,” Leonard explained.

Basing the ship on a LPD 17 – as opposed to starting from scratch with a new ship design – helps the existing industrial base and gives the Navy more options to keep costs lower, service leaders said.

“That ship is a good ship and we want to be able to continue to buy that ship. We did cost reduction initiatives to get the ship down under cost. We are on a good track to do that. When we get this ship out in the fleet I think it is going to be a great ship side by side with the LPD 17s,” Marine Corps Maj. Gen. Robert Walsh, director of expeditionary warfare for the Navy, said recently at the Surface Navy Association annual symposium in Arlington, Va.

The LSD, which is key to bringing a lot of equipment from ship to shore in LCACs, does not have the same ability to operate independently of an Amphibious Ready Group compared to the LPD 17.

“The LPD has more robust aviation capability. It still has a well-deck but it is not able to carry as much equipment as an LSD ship. LPD has the command and control and aviation capability to operate independently. The LSD is a cargo ship designed to support the big-deck amphibious assault ship in the ready group,” a Navy official told Military.com last summer.

Having more amphibs engineered and constructed for independent operations is seen as a strategic advantage in light of the Pacific rebalance and the geographical expanse of the region. The widely dispersed territories in the region may require a greater degree of independent amphibious operations where single amphibs operate separately from a larger ARG.

Also, the LPD is able to transport up to four CH-46 Sea Knight helicopters or two MV-22 Ospreys. The Navy had been planning on maintaining only 11 LPDs in the fleet, however additional funding has allowed the service to procure a long-desired 12th LPD, Navy officials said.

Overall, the Navy’s need for amphib continues to outpace the amount of ships available for missions, many Navy and Marine Corps leaders have said.

Recognizing what the Navy has said about its plans and intentions for the new ship, Newport News Va.-based Huntington Ingalls Industries has already unveiled its offering for the LX® competition, calling it the LPD Flight IIA.

The Navy’s LSD dock landing ships are built to house four LCACs or three larger Landing Craft Utility vehicles or LCUs. The ships can also transport up to 36 amphibious assault vehicles. Also, the LSDs have four diesel engines and a helicopter platform with no hangar.

Huntington Ingalls executives say they modified their design to meet the Navy’s adjusted requirements for the LX( R ).

“We deleted the composite mast and deleted the aft house. We took the Marines down to 500 and took half of the medical space away. We took four engines down to two,” said Mike Duthu, director of new Navy programs, Huntington Ingalls. “We deleted a generator, deleted the electrical load topside and we also made some of the systems simpler.”

The Huntington Ingalls design is aiming to propose a ship that is capable of independent operations, aviation missions and extensive command and control technologies, Duthu added.

For example, their offering adds an aviation hangar to the platform in order to better enable sustained independent aviation operations.

“This (LPD Flight IIA) would be our concept going in to LX( R ) as to what we would offer for the Navy’s consideration. We understand that LXR is going to be a competition and that the Navy intends to compete LX( R ),” he said.


LPD Flight IIA
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Nice !
 
All they need is new generation frigates
 
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LPD Flight IIA is the one ship that can be made to meet multiple missions:
Amphibious Warfare: Flight IIA is an affordable, capable, survivable next generation amphibious ship variant of the amphibious transport dock LPD 17; a suitable replacement to perform the amphibious warfare missions of the Harpers Ferry and Whidbey Island classes. Equipped for support of missions requiring deployment of Marines and their equipment from the air and from the sea, Flight IIA provides communications, logistic and medical support required for sustained operations and the right balance of C4I, C2 and helo maintenance and support to carry out stand alone missions anywhere in the world.
Ballistic Missile Defense: Flight IIA can be tailored to perform ballistic missile defense missions with the capacity for powerful radars, mission magazines, and command and control systems.
Joint Command and Control: A Command and Control ship, based on the Flight IIA design can provide an effective and efficient approach to recapitalizing current aging assets. The flexibility and margin inherent in the design coupled with available internal volume provide ample space for fitting out with services required for sustained Joint Command and Control of theater operations.
Humanitarian Operations: Amphibious warships are naturally configured to lead disaster and humanitarian missions. Communications Systems together with Air and Sea Lift assets and stores inherent in the Flight IIA are available for instant response providing rapid relief and medical services.
Hospital Ship: Flight IIA retains the necessary medical capability for the amphibious warfare mission. A Hospital Ship built from Flight IIA benefits from the flexibility and inherent margin which allows the platform to be tailored to provide a full range of services and enhanced medical capabilities.



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LPD Flight IIA revises the configuration of the LPD 17 Class Ship's proven baseline design to provide adaptable space and weight for a full range of future mission requirements and payloads. Flight II is a cost-effective alternative to a new unproven design.
How is Flight IIA different than LPD 17?
  • Flight IIA reduces troop capacity from 800 to 500. This reduction leads to the elimination or modification to associated spaces such as habitability, work spaces, stores, etc.
  • Medical facilities such as wards and operating rooms are reduced by 50 percent.
  • The helicopter hangar and associated aviation workspaces and storage are eliminated.
  • The MK 46 30mm gun weapon system is replaced with a MK 38 Mod 2 remote controlled 25mm chain gun providing offensive and defensive ability.
  • RCS features on masts, bulwarks and boat stations are eliminated topside and internal CPS zones are reduced from five to one.
  • The mission of the ship to serve as an amphibious command and control platform is eliminated and associated equipment is deleted.
  • The AN/SPS-48E air search radar is replaced with a TRS-3D which is currently outfitted on the National Security Cutter providing a more suitable sensor for its mission.
  • Cooperative engagement is eliminated.
What's the same as LPD 17?
  • Hull form and machinery spaces
  • Overall ship dimensions.
  • Passageway width
  • Arrangement of inclined ladders for ease of access
  • Co-location of armories with troop berthing
  • Overall high quality of life aboard
  • Weapons capability
  • Flight deck fueling capacity and helicopter control station maintained with a newly designed helo hangar.

LPD Flight IIA: The Next Evolution in Amphibious Warfare
 
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