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AMDR ships

bring_it_on

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A brief overview of the SPY-6 variant mission requirements and array configuration is provided as follows:





1. AMDR (AN/SPY-6(V)1) is designed to meet mission performance and size, weight, and power - cooling (SWAP-C) requirements of the DDG-51 FLT III ships with AEGIS Baseline 10 (BL 10) combat system. The AMDR S-Band Radar will provide volume search, tracking, Ballistic Missile Defense (BMD) discrimination, and missile communications in a wide diversity of environments and conditions. This variant includes 37 Radar Modular Assemblies (RMAs) per array, each which contain independent transmit and receive LRUs and provide SPY +16 dB minimum sensitivity. There are 4 arrays per shipset.


2. AMDR Backfit (designation to be determined) is designed to meet mission performance and SWAP-C requirements of the DDG-51 FLT IIA ships with a variant of AEGIS Baseline 10 (BL 10) combat system, to be defined. The AMDR Backfit Radar will provide volume search, tracking, Ballistic Missile Defense (BMD) discrimination, and missile communications in a wide diversity of environments and conditions. This variant includes 24 RMAs per array x 4 arrays per shipset.


3. EASR Rotator (AN/SPY-6(V)2) is designed to meet mission performance and SWAP-C requirements of the Landing Helicopter Assault (LHA 8+) hulls, Landing Platform/Dock (LPD 29+) hulls, and backfit onto CVN (Nimitz) and Landing Helicopter Docking (LHD) hulls. This variant includes a single array on a rotating platform with 9 RMAs.


4. EASR Fixed Face (designation to be determined) is designed to meet mission performance and size, weight, and power - cooling (SWAP-C) requirements of CVN (Ford) class carriers and Future Frigate (FFG(X)). This variant includes 9 RMAs per array and there are 3 arrays per shipset.



For context, the notional procurement and delivery schedules for all FY21-25 SPY-6 shipsets (combined Leader and Challenger requirements), and the current SPY-6 contract planned shipset delivery dates are provided under Attachment 4 of this RFI.
https://www.fbo.gov/index.php?s=opportunity&mode=form&id=a455c923515d93308fe5dc7a0b3c632f&tab=core&_cview=1
 

Moose

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bring_it_on said:
A brief overview of the SPY-6 variant mission requirements and array configuration is provided as follows:





1. AMDR (AN/SPY-6(V)1) is designed to meet mission performance and size, weight, and power - cooling (SWAP-C) requirements of the DDG-51 FLT III ships with AEGIS Baseline 10 (BL 10) combat system. The AMDR S-Band Radar will provide volume search, tracking, Ballistic Missile Defense (BMD) discrimination, and missile communications in a wide diversity of environments and conditions. This variant includes 37 Radar Modular Assemblies (RMAs) per array, each which contain independent transmit and receive LRUs and provide SPY +16 dB minimum sensitivity. There are 4 arrays per shipset.


2. AMDR Backfit (designation to be determined) is designed to meet mission performance and SWAP-C requirements of the DDG-51 FLT IIA ships with a variant of AEGIS Baseline 10 (BL 10) combat system, to be defined. The AMDR Backfit Radar will provide volume search, tracking, Ballistic Missile Defense (BMD) discrimination, and missile communications in a wide diversity of environments and conditions. This variant includes 24 RMAs per array x 4 arrays per shipset.


3. EASR Rotator (AN/SPY-6(V)2) is designed to meet mission performance and SWAP-C requirements of the Landing Helicopter Assault (LHA 8+) hulls, Landing Platform/Dock (LPD 29+) hulls, and backfit onto CVN (Nimitz) and Landing Helicopter Docking (LHD) hulls. This variant includes a single array on a rotating platform with 9 RMAs.


4. EASR Fixed Face (designation to be determined) is designed to meet mission performance and size, weight, and power - cooling (SWAP-C) requirements of CVN (Ford) class carriers and Future Frigate (FFG(X)). This variant includes 9 RMAs per array and there are 3 arrays per shipset.



For context, the notional procurement and delivery schedules for all FY21-25 SPY-6 shipsets (combined Leader and Challenger requirements), and the current SPY-6 contract planned shipset delivery dates are provided under Attachment 4 of this RFI.
https://www.fbo.gov/index.php?s=opportunity&mode=form&id=a455c923515d93308fe5dc7a0b3c632f&tab=core&_cview=1
First time I've seen definitive wording on the number of RMAs per panel on Backfit. Going to be interesting to see exactly how much reconstruction a IIA needs to make the conversion workable.
 

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The Flight II backfit with 24 RAMs is most probably set up with 2/4/6/6/4/2 RAMs per row. That gives a size of about 3.68m x 3.55m. SPY-1 has about 3.65m x 3.65m. That should fit very well from antenna perspective.
 

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Racer said:
The Flight II backfit with 24 RAMs is most probably set up with 2/4/6/6/4/2 RAMs per row. That gives a size of about 3.68m x 3.55m. SPY-1 has about 3.65m x 3.65m. That should fit very well from antenna perspective.
The size of the hole is only part of the equation, SPY-6 fits in space very differently than SPY-1 does. Plus there's the need for more cooling and more readily available 4,160-volt power.
 

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The 24 RMA solution is meant exactly for backfitting into Flight II without the need for improving power or cooling, or at least in a very easy way, like up-rating the generators (available) and do a 1 to 1 replacement.

It is NOT SPY 6 with 37 RMA, which has a linearly higher demand for power and cooling by about 54%.
 

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Racer said:
The 24 RMA solution is meant exactly for backfitting into Flight II without the need for improving power or cooling, or at least in a very easy way, like up-rating the generators (available) and do a 1 to 1 replacement.

It is NOT SPY 6 with 37 RMA, which has a linearly higher demand for power and cooling by about 54%.
I am aware of the scope of the backfit array, as my post further up the page indicates. However, backfitting will require more cooling up at the panels because, instead of a separate transmitter and waveguide tubes feeding a passive array, the T/R modules are literally right up against the antenna elements. Plus everything's running at 4160. That's a different cooling architecture, even if the overall net gain isn't as dramatic as with a full SPY-6.
 

marauder2048

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Moose said:
Plus everything's running at 4160.
The Navy had started in on the design of a 450 VAC -> 1000 VDC power conversion module during the early AMDR days.
There was a recent-ish BAA on this front.
 

bring_it_on

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AN/SPY-6: US NAVY RADAR OF CHOICE


The Raytheon division is on contract to deliver four ship sets of the AN/SPY-6(V1) air and missile defence radar (AMDR) to the service, with first set delivery expected in early April 2020 for installation at Huntington Ingalls on DDG 125 [USS JACK H. LUCAS]...

Raytheon will also deliver an Enterprise Air Surveillance Radar (EASR) to the Surface Combat Systems Center Wallops Island, Virginia in early 2019, for developmental testing 3. That testing is set to begin in the March to June 2019 timeframe....

Raytheon is, “delivering radars 24-30 months from contract award,” the industry veteran added. Raytheon is meeting the service’s surging demand for AN/SPY-6s by building additional capacity by way of a second factory in Forest, Mississippi. The new Raytheon facility will open in 2021...
 

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bring_it_on

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Advanced Distributed Radar capability, FY20 new start - The capability will enhance BMD detection performance, increase sensitivity at large scan angles, and enable AMDR to operate in receive-only mode in cooperation with another SPY-6(V)1 radar. In addition to BMD mission, this capability will also improve Anti-Air-Warfare (AAW) war fighting capabilities and provide advanced electronic protection techniques.
 

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bring_it_on

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Raytheon's Enterprise Air Surveillance Radar to begin live testing at Wallops Island Test Facility


Raytheon Company's Enterprise Air Surveillance Radar just took a 12-hour trip down the Eastern Seaboard. EASR, the newest sensor in the U.S. Navy's SPY-6 family of radars, recently completed subsystem testing at Raytheon's Near Field Range in Sudbury, Massachusetts. The 6' x 6' rotating array was wrapped, loaded onto a flatbed truck and eventually crane-lifted onto a 100 foot test tower at the Surface Combat Systems Center at Wallops Island, Virginia. Once up and running, the radar will undergo system-level testing, tracking a variety of aircraft through the end of 2019.
 

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Navy determines SPY-6 radar three times stronger than original requirement

The Navy is confronting a welcome challenge -- what to do with a new radar that is three times better than expected. Government testers recently completed developmental evaluation of the SPY-6(V)1 radar and concluded the new, Raytheon-built sensor is nearly 100 times more sensitive than the legacy SPY-1 radar, built by Lockheed Martin.

This previously unreported determination has implications not only for the reach of the SPY-6(V)1 sensor slated for the Navy's new Flight III Arleigh Burke-class destroyers, but also for a new initiative to swap out for SPY-1 radar from the Flight IIA fleet with a scaled-down variant of the SPY-6(V)1 and a vision to potentially create a distributed radar network across the surface fleet for improved ballistic missile defense.

The Air and Missile Defense Radar program set a requirement for the SPY-6(V)1 sensor to be 30 times more sensitive than the SPY-1. The Navy has validated that the new sensor has a decibel measurement of “+20dB” compared to the legacy radar, according to a Raytheon document approved by the Navy for public release.

“SPY-6(V)1 is approximately 20dB more sensitive than SPY-1 -- nearly 100 times -- which translates to more than three times the original requirement,” said Scott Spence, director of naval radar systems, told Inside Defense. “SPY-6 also delivers a significant increase in range to the legacy radar.”

Spence declined to provide specifics on the increased range.

In January, the Air and Missile Defense Radar program executed the last of 15 developmental tests for the $5.8 billion program to develop and deliver a larger and more powerful sensor for the Navy's Flight III DDG-51 destroyers.

Curt von Braun, technical director of Raytheon's Seapower Capability Systems, said the company -- since being selected by the Navy in October 2013 to develop the SPY-6 -- has touted plans to deliver a new radar that would be 30 times more sensitive.

“The 30 was an original number, but [during] the test period out at Pacific Missile Range Facility, we've been realizing additional sensitivity through our design margins that have been now tested,” von Braun said, referring to the Defense Department test range in Hawaii. “So we're more at liberty to advertise the better performance than was designed in the margins and now those are being officially realized by the radar.”

The SPY-6(V)1, being built in a new manufacturing facility in Andover, MA, featuring state-of-the-art robotics and automation tools, is composed of 37 radar modular assemblies -- each a two-foot cube -- that can be scaled to fit a smaller or larger need.

The Navy is acquiring a variant with nine RMAs called the Enterprise Air Surveillance Radar for its new large-deck amphibious assault ships, amphibious transport dock ships, the new frigates and aircraft carriers.

Raytheon officials, who believe the RMAs could be stacked by the scores or hundreds for homeland defense purposes, are hoping the Navy will adopt a 24-RMA configured sensor as part of a new radar upgrade -- potentially for the bulk of its DDG-51 Arleigh Burke destroyer class -- that would give the Flight IIA variant a radar that would be 30 times more sensitive than the SPY-1.

“The Navy wants to make sure those older ships can be in the modern fight,” said von Braun. “And the modern fight is more complex than it was in the day when the SPY-1 radar was built. And so the Navy is keenly interested in this backfit opportunity.”

The Navy has approved for public release a Raytheon document describing a 24-RMA version of a scaled-down SPY-6 for the proposed DDG-51 backfit as being “+15dB” compared to the SPY-1. von Braun said this means the scaled-down version would deliver the Navy a radar 30 times more sensitive than the SPY-1, effectively providing the capability the Navy originally desired from the SPY-6.

The 24 RMA-configured radar for the DDG-51 Flight IIA ships can deliver a capability “that is identical to the original requirement that we had for the SPY-6 on the forward fit,” said Spence. “So, we will perform to the requirement of the forward fit, but on the smaller version of the backfit.”

The Navy's FY-20 budget request seeks $55.3 million as part of a $381 million plan through FY-24 to scale the AMDR radar down to fit into the Flight IIA ships. The Navy has 46 Flight IIA destroyers, according to a Congressional Research Service report, including DDG-79 through DDG-124 plus DDG-127.

Were the Navy to swap out the SPY-1 of all Flight IIAs, such a project could be worth hundreds of millions of dollars, possibly billions.

The implied acquisition strategy in the budget suggests this backfit program is part of the AMDR program and provides no indication the Navy intends to compete the project, which would likely interest -- at the very least -- Lockheed Martin.

“Lockheed Martin is supporting the U.S. Navy customer in their radar roadmap, which includes both SPY-1 and SPY-6 evolution,” JoAnn Grbach, a Lockheed Martin spokeswoman, said.

The Navy's FY-20 budget request seeks funding “to scale AMDR to backfit active electronically-steered array and digital beam-forming technology on a [Flight] IIA DDG and to complete development and integrate Advanced Distributed Radar (ADR) capability into AMDR.”

The AMDR capability, according to the Navy, will enhance ballistic missile defense detection performance, “increase sensitivity at large scan angles, and insert the core algorithms to enable AMDR to operate in receive-only mode, in cooperation with other radars.”

The new capability will also improve anti-air warfare capabilities and provide advanced electronic protection techniques, according to the budget.

In FY-17, the Navy pivoted to procuring Flight III variants, which incorporate engineering and design changes -- including increased power and cooling -- to accommodate the larger SPY-6 radar. The Navy plans to buy 22 Flight III ships.

“SPY-6 will give the U.S. Navy the operational flexibility to perform missions in ways never before possible,” according to Spence. “Unlike the radar it will replace, SPY-6 is a digital active electronically scanned array radar. This fundamentally changes how it interacts with a combat management system,” he said, referring to the Lockheed-built Aegis combat weapon system which the SPY-1 works with.

SPY-6 is combat-system agnostic, he said, so it can pair with all Navy systems such as the Raytheon-built Ship Self-Defense System used on some aircraft carriers and large amphibious assault ships as well as combat systems used by allies.

The new AMDR radar, Spence said, “offloads many radar-specific functions that currently need to be performed by the Aegis combat system, allowing the combat management system to do its job without having to spend computing power managing radar assets.”

In addition, the SPY-6 provides increased coverage, allowing “early and accurate threat detection” so the Navy can take advantage of the full range and speed of the newest interceptors paired with the Aegis system, including the Standard-Missile 3 and the SM-6, Spence added.
 

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The next cruiser design I really hope they incorporate a second deck gun and multiple 30 mm guns both port and starboard
 

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The next cruiser design I really hope they incorporate a second deck gun and multiple 30 mm guns both port and starboard
The autocannon question is a very interesting one, for the first time in a long time there are a lot of quality options to consider. I hope they don't stick with the Mk46 mount, if they double down on 30mm, as there are better options now than when it was selected for the LPDs.

I go back and forth on how likely multiple deck guns are on the next combatant, in no small part because the decision-making happening in the Navy right now is somewhat frustrating and opaque. But there are certainly options there as well, from fairly recent advances in affordable 155mm solutions to railgun all the way to the Army's stated desire for a supergun.
 
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Moose

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Xav's Sea Air Space coverage includes some AMDR news:

So,
AN/SPY-6(V)1 = AMDR
AN/SPY-6(V)2 = EASR
AN/SPY-6(V)4 = Backfit array for Burke Flight IIA

Also, the backfit array is 3,4,5,5,4,3 RMAs with the outer rows overlapping rather than all the seams aligning as on the other 2.
 

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The Japan Times is reporting that the US and Japan are working toward a joint development program for what appears to be a resurrected AMDR-X.
The new radar system, anticipated to provide 360 degree surveillance on the warships, is expected to be the next pillar of the nation’s defense collaboration with Washington.

Two different types of air and missile defense radar are planned for the warships in the future, including the AN/SPY-6 — an upgraded radar system suitable for detecting high-altitude threats. The AN/SPY-6 system is on schedule to be delivered starting in 2020.

Currently the AN/SPQ-9B system is used to detect and track low-flying threats, but it is a traditional rotating radar that makes blind spots unavoidable.

The new radar eyed for development by Japan and the United States will be a nonrotating system, according to the sources.
 

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It's interesting that the article mentions future ships using AN/SPY-6 but not a peep about Lockheed's LRDR, which uses components from Fujitsu and won the contract for the Japanese Aegis Ashore site.
 
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