Saturday, October 12, 2024

Blast From The Past

If you look to the sidebar of the post, you’ll see a new feature called ‘Blast from the Past’.  In it is a link to a single post pulled from the early archives.  The post will change with some frequency and will be a post that remains pertinent today but may have been missed by many current readers who had not yet joined the blog at the time of the posting.  The posts will reveal the timelessness of ComNavOps’ wisdom and his eerie foresight and omniscience.  Enjoy!

Friday, October 11, 2024

Prepare to Fight the Last War

There’s an old saying that generals always prepare to fight the last war.  Nowhere is this truer than the Ukraine-Russia war.  The US (and, to be fair, the entire world) is preparing to fight the Ukraine conflict for the next war. 
 
We noted the success Ukraine has had using unmanned surface drones against the Russian navy and so we are dutifully pushing ahead with unmanned vessels just as quickly as we can while ignoring the unique factors that make the Ukraine conflict a true one-of-a-kind example.
 
We noted the inability of manned aircraft to exert decisive effect and so we’ve begun revising our air doctrine and tactics to reflect this while ignoring the unique factors that make the Ukraine conflict a true one-of-a-kind example.
 
We noted the impact of small UAVs in attacking individual soldiers and vehicles so we’ve enthusiastically embraced all manner of small drones while ignoring the unique factors that make the Ukraine conflict a true one-of-a-kind example.
 
We noted the marked lack of success by tanks and their high rates of attrition and so we’ve eliminated the entire Marine Corps tank component and begun moving away from tanks and toward light vehicles while ignoring the unique factors that make the Ukraine conflict a true one-of-a-kind example.
 
 
There can be no dispute.  When we enter into a duplicate of the Ukraine conflict we will be more than ready.  On the other hand, when we take on China we’ll be lost, floundering, and wondering why we aren’t better prepared.  It’s because we’re preparing to fight the Ukraine war, not China.

Saturday, October 5, 2024

Low-Manned Surface Vessel

There has been a good deal of discussion in the naval observer camp lately about some form of supplemental weapons vessel;  an arsenal ship/barge, as it was called in earlier times.  The vessel, by whatever name, would act as a supplemental magazine for manned ships thereby allowing … well … I’m not really sure what it allows.  Let’s take a look at the latest country to latch onto the fad and see what’s good about their design and concept and what isn’t.
 
The Royal Netherlands Navy is going to acquire two-low manned surface vessels which are euphemistically and optimistically referred to as ‘The Rapidly Increased Firepower Capability’ (TRIFIC, ‘terrific’? one assumes they’ll be called in a tortured acronym that some staffer probably received a promotion for coming up with) and, in some articles, Modular Integrated Capability for ACDF and North Sea (MICAN) and Multifunctional Support Ship (pick a name and stick with it!).
 
The vessel is 170-200 ft long and is based on a commercial offshore supply vessel.  It will carry up to 4 containers on the aft deck.
 
TRIFIC Low-manned Surface Vessel

 
From various articles, here’s a list of some of the claimed capabilities of the vessel:
 
  • increase front-line firepower
  • support surveillance efforts
  • containerized weapon packages
  • electronic warfare (EW) packages combining both intercept and jamming functionality
  • operate as an ‘offboard’ magazine for RNLN air defence and command frigates (ADCFs)
  • fire support/precision strike for the Royal Netherlands Marine Corps
  • provide additional long-range surface-to-air missile capacity for the four De Zeven ProvinciĆ«n-class ADCFs
  • employ long-range precision-guided munitions against coastal targets in support of amphibious operations
  • provide protection for infrastructure in the North Sea
  • deploy the Harop long-range loitering munition
  • precision strike capability against critical targets such as headquarters, artillery or rocket installations, and supply areas
  • EW suite to collect information on radar emitters, jam threat radars, and disrupt control links associated with hostile drones
  • deploy underwater vehicles/sensors to support surveillance and protection of North Sea infrastructures
  • deploy above-water sensors to record the activities of suspicious ships for evidence 
 
Looking at that list, this vessel is a true miracle.  The only capability it doesn’t seem to have is the ability to operate an air wing while submerged.  Perhaps that’s coming?
 
What is the rationale for the vessel? 
The requirement for additional long-range anti-air missiles has been shaped by operational analysis which has determined that a massive and simultaneous attack with anti-ship missiles or swarming drones could rapidly exhaust existing ACDF [air defence and command frigates] magazine capacity. According to Tuinman [Dutch state secretary for defense Gijs Tuinman], the concept of ‘distributed operations’ developed by the RNLN will see a De Zeven ProvinciĆ«n-class frigate operating in close company with a multifunction support vessel with additional missiles housed in containers on the aft deck.[1]
Will a couple of containers of missiles (2?  maybe 4 missiles per container?) make the difference to a frigate facing “a massive and simultaneous attack with anti-ship missiles or swarming drones”?  Of course not!  A massive and simultaneous attack with anti-ship missiles or swarming drones is not a winnable scenario for a single frigate … not even close.  To believe that a few extra missile containers will enable a frigate to defeat “a massive and simultaneous attack with anti-ship missiles or swarming drones” is pure fantasy.
 
We’ve already demonstrated that a ship – any ship – will be lucky to get off a single two-missile salvo against any incoming missile and a frigate has a basic radar, not even a Aegis type sophisticated radar.  As we’ve noted, having a million defensive missiles available is of no use whatsoever.  You can only launch two missiles per engagement and responding to “a massive and simultaneous attack with anti-ship missiles” is simply not possible.
 
Making the scenario even less likely is that the launch commands and missile guidance will be provided by the accompanying frigate.  How is a frigate that is under attack by “a massive and simultaneous attack with anti-ship missiles” going to have the time or resources to provide external missile targeting and guidance control? 
 
Even worse, a frigate that is controlling a remote vessel has to have constant communication between the control ship and the low-manned support vessel.  This means the ship’s location is being constantly broadcast.  Is this a good idea in combat?
 
The cost of this vessel is also concerning.  The budget for the multifunction support vessels is between €250 million and €1 billion. This covers procurement costs, a risk reserve, and operating costs through to 2039.[1]  It’s a certainty that the cost is going to be much closer to the high end of that enormous range than the low end.
 
The practical operating aspects of this vessel have clearly not been thought through.  This is an example of latching onto a fad because you have no grasp of the realities of combat.
 
 
 
________________________________
 
[1]Naval News website, “Netherlands Firms Up Plans For Multifunction Support Vessels”, Richard Scott, 27-Sep-2024,
https://www.navalnews.com/naval-news/2024/09/netherlands-firms-up-plans-for-multifunction-support-vessels/

Monday, September 30, 2024

Multi-Year Amphibious Ship Buy

As reported by Naval News website, the Navy has awarded a multi-year contract for the purchase of three San Antonio LPDs and one America LHA. 
The deal, which will fund three San Antonio-class LPDs and one America-class Flight II LHA, will save taxpayers an estimated $1 billion.[1]
I have a couple of problems with this contract award.
 
Savings – The supposed savings is estimated at $1B.  In the aggregate, that sounds impressive.  A billion dollars!  Wow!  However, across four ships that’s just $250M savings per ship.  That’s not nothing but it’s not a miraculous savings, by any means.  More importantly, you know those savings will never materialize.  With 100% certainty, the ships will come in over budget and behind schedule with a litany of excuses like supply chain disruptions, parts shortages, design modifications, and all the other usual suspects.  There won’t be any savings.  The absolute best case is that the ‘savings’ (let’s be optimistic and assume there will be actual savings) will slightly reduce the magnitude of the inevitable cost overruns.  Again, better than nothing but let’s not kid ourselves into thinking we’re actually going to save money.
 
Make no mistake, the Navy didn’t do this to save the taxpayers any money; they did it to lock down budget commitments.  The Navy doesn’t care what a ship costs.  It’s not their money.  Congress will always give them more money.  They did this to lock down budget share.
 
Doctrine – This is the real puzzler.  Neither the Navy nor the Marines have any intention of ever again doing an amphibious assault.  The Marines have publicly and explicitly stated that they are out of the assault business.  The Navy doesn’t care about amphibious assaults and, indeed, balked at procuring more amphibious ships when they instituted a ‘strategic pause’ in amphibious ship procurement. 
 
Similarly, the Navy’s total indifference to the Marine’s Light Amphibious Warfare ship is yet more evidence of their disdain for amphibious operations.
 
Further evidence is the Navy’s total abandonment of naval gun support for amphibious operations and the doctrinal decision to move amphibious ships 25-50 miles off shore – a distance at which it is impossible to conduct an amphibious assault with current technology. 
 
The Navy is never going to conduct another amphibious assault so why are we continuing to buy more amphibious ships?
 
Legality – By law, multi-year procurements can only be applied to a single design that is mature and stable.  While I’m not a lawyer, the mix of ship types and the inclusion of a single (not multi) LHA would appear to be illegal.  Of course, this would hardly be the first time the Navy has ignored the law.  Here’s the verbiage describing the main requirement for using a multi-year procurement. 
FAR17.105-1(b)(3) There is a stable design for the supplies to be acquired, and the technical risks associated with such supplies are not excessive [2]
This is intended to be applied to a single, stable design.  The Navy is most certainly violating the spirit and intent of the law, if not the actual verbiage.
 
 
 
Discussion
 
So, with no savings and no intention (Marines) or interest (Navy) in ever conducting an amphibious assault, tell me again, why are we continuing to procure any amphibious ships? 
 
It seems clear that the only viable reason for the Navy going down this path is the desire to lock in budget share.
 
Layer the potential illegalities on top of this highly questionable contract and it becomes even more clear that this is a budget machination, not a sincere attempt at saving the taxpayers money.
 
 
 
____________________________
 
[1]Naval News website, “U.S. Navy’s First Ever Multi-Year Amphibious Ship Contract Awarded”, Carter Johnston, 25-Sep-2024,
https://www.navalnews.com/naval-news/2024/09/us-navy-finalizes-first-amphibious-multi-year-buy/
 
[2] https://www.acquisition.gov/far/subpart-17.1

Tuesday, September 24, 2024

The Electronic Battleship

One observation that has clearly come out of the Ukraine-Russia war is the prominent role of electronic warfare (EW).  We’ve seen GPS disruptions, weapon guidance disruption, intercepted communications, unit localization using signals intercepts, and probably many other aspects that are not yet common knowledge.  So, while the exact manifestations of EW’s prominence are not yet fully clear, the overall thrust is.  EW is a major factor/force on the battlefield and its influence is likely to continue to grow.
 
This is a naval blog so what does the EW lesson mean for naval forces?  Obviously, all the same considerations apply to the maritime battlefield as the land battlefield.  Enemy forces and weapons detection, weapons guidance disruption, localization using signal intercepts, etc. are all vitally important for naval forces.
 
Naval forces (and for the rest of this post we’ll focus on US Navy forces unless otherwise explicitly stated) have had EW capabilities to varying degrees for many decades now so what’s the big deal?  The ‘deal’ is that naval EW has long been the forgotten stepchild of naval capabilities (along with armor, large caliber guns, survivability, robust steel construction, weapon density … boy, the Navy sure has a lot of forgotten stepchildren, don’t they?!).  EW has been an afterthought, at best.  It is only recently that the Navy has begun to belatedly, and even then only in a minor way, address EW with the SEWIP modernization program.
 
Currently, each ship has its own small SLQ-32/SEWIP EW unit and the units are constrained by space/volume/mounting requirements, power limitations, placement challenges, manning constraints, training deficiencies, etc.  In other words, each individual ship can, at best, take care of itself but is of little or no help to other ships in the area.
 
If EW is so important, doesn’t it make sense to have a ship that is a behemoth at electronic warfare?  An electronic battleship, so to speak?  Where is our EW ship that can electronically dominate the naval battlefield?  Where is the ship that can electronically ‘swat’ UAVs and missiles from the sky?  Where is our area EW as opposed to individual EW?  We wouldn’t dream of not having area air defenses so why don’t we have area EW?
 
Where is the EW battleship?
 
What’s wrong with individual ship EW, you may ask?  Nothing except that, by definition, it’s limited to just the host ship and it’s haphazardly implemented and suffers from being at the bottom of the ship’s training priorities because it’s not the main mission of the given ship.  This is the same problem the Burkes face with ASW.  They are theoretically capable of ASW but they rarely train for it and are, therefore, ineffective.  Anti-air is the Burke’s main mission so that’s what they train for on the rare occasions that they train for anything.
 
Consider this historical example:  the USS Stark incident was instructive as it illustrated problems with the SLQ-32 performance, interface, false alarms, and lack of training, as noted below. 
The electronic warfare technician at the SLQ-32 console heard the F-1’s Cyrano-IV again lock on to the Stark. The lock-on signal ceased after seven to ten seconds.
 
Neither of the two SLQ-32 operators saw a [ed. inbound] missile warning. The main operator at the console, however, had turned off the incoming missile audible signal warning. He claimed later that the alarm was typically set off too easily, and distracted him from performing other signal analysis.[1]
 
We need a ship whose main – indeed, only – mission is EW so that it gets the training that is required to achieve and maintain proficiency.  We need an electronic battleship.
 
More than that, we need a multi-ship, coordinated EW effort.  Currently, each ship is its own EW entity, separate and isolated from any other ship.  There is no integrated, multi-ship or group EW effort as there is with missile control and usage via Cooperative Engagement Capability (CEC) and Naval Integrated Fire Control-Counter Air (NIFC-CA).  Navy air defense utilizes a central command and control function typically located aboard the Ticonderoga class cruisers.  Again, we need a group wide, area EW control that integrates the EW of all the ships in the group.  We need an EW CEC.
 
Further, we need the group’s chaff and decoy systems tied into the EW control system.
 
Having established the need for an EW battleship and the general concept of large scale, area EW let’s now look at the specifics of an EW battleship.
 
 
EW Battleship
 
Analogous to a conventional battleship, the three main categories and levels of ‘weapons’ for an EW battleship are:
 
  • Main battery - electronic attack
  • Secondary battery - electronic protection
  • Tertiary battery - electronic support
 
More specifically, the EW battleship requirements are, in no particular order:
 
  • radar warning
  • targeting support
  • countermeasures
  • situational awareness
  • threat warning
  • signal collection / SigInt
  • direction finding
  • laser warning
  • drone/missile communications jamming
  • false signal injection
  • enemy GPS (GLONASS, BeiDou) disruption at point of attack
 
With the specific requirements in mind, what kind of specific equipment (EW ‘weapons’) should an EW battleship have?  An examination of the myriad existing aircraft, vehicle, and ship EW systems provides a good candidate list while understanding that each system would be significantly scaled up in terms of power and antenna size (both sensing and emitting).  For example, a small EW pod on an aircraft might be functionally duplicated for use on a EW battleship but would have, for practical purposes, unlimited power and emitters/receivers many times larger.
 
To give a feel for the types of equipment, here’s a partial list of existing EW equipment on various platforms:
 
 
Ship:
 
  • AN/SLQ-32(V)2 – Initially the most common variant, the (V)2 expanded on the (V)1's capabilities with new receiving antennas for increased radio frequency coverage. It added the ability to detect high frequency targeting and fire-control radars, providing early warning against an imminent anti-ship missile attack.
  • AN/SLQ-32(V)3 – The (V)3 added antennas with electronic attack capability, able to actively jam targeting radars and anti-ship missile terminal guidance radars.
  • Sidekick – active jamming in a smaller package as an alternative to (V)3
  • AN/SLQ-32(V)6 – Part of the Surface Electronic Warfare Improvement Program (SEWIP). (V)6 provides enhanced electronic support capability through upgraded antennas and open combat system interface. It is made up of the SEWIP Block 1B2, SEWIP Block 1B3, and SEWIP Block 2, which provide specific emitter identification (SEI), high gain high sensitivity (HGHS), and electronic support (ES), respectively.
  • SEWIP Block 1 provides enhanced EW capabilities to existing and new ship combat systems to improve anti-ship missile defense, counter targeting and counter surveillance capabilities. The upgrade addresses obsolescence mitigation through introduction of electronic surveillance enhancements (ESE) and Improved Control and Display (ICAD) as well as incorporation of adjunct receivers for special signal intercept including specific emitter ID (SEI) and high gain/high sensitivity (HGHS). The SEI and HGHS capability provides improved battlefield situational awareness.
  • SEWIP Block 2 provides early detection, analysis, and threat warning from anti-ship missiles by providing enhanced Electronic Support (ES) capability via an upgraded ES antenna, ES receiver and an open combat system interface for the AN/SLQ-32. These upgrades are necessary in order to pace the threat and improve detection and accuracy capabilities of the AN/SLQ-32.
  • SEWIP Block 3 (AN/SLQ-32(V)7) will provide electronic attack (EA) capability improvements.
  • SEWIP Block 4 is a future planned upgrade that will provide advanced electro-optic and infrared capabilities to the AN/SLQ-32(V) system.
  • COBLU Command and Control Coordination - Integrates area ship sensors and provides a common picture using passive sensors.
 
 
Aircraft:
 
  • EA-18G Growler: ALQ-218 Detection Pod  -  passive Radar warning receiver for airborne situational awareness and signal intelligence gathering. The AN/ALQ-218 detects, identifies, locates and analyzes sources of radio frequency emission.
  • EA-18G Growler: ALQ-99 High Band Jamming Pods  -  radar and comms jamming
  • EA-18G Growler: ALQ-99 Low Band Jamming Pod  -  radar and comms jamming
  • EC-130H / EC-37B Compass Call – electronic attack;  disrupts enemy command and control communications and secondary EA capability against early warning and acquisition radars.
  • MQ-1C Gray Eagle UAV - Multifunctional Electronic Warfare (MFEW) Air Large is the Army’s first organic brigade electronic attack asset mounted on an MQ-1C Gray Eagle drone.  brigade-level airborne electronic attack asset and providing limited cyberattack capabilities
  • RC-135V/W is the USAF's standard airborne SIGINT platform.
  • RC-135S Cobra Ball is a measurement and signature intelligence (MASINT) collector equipped with special electro-optical instruments such an All Weather Tracking Radar and Medium Wave Infrared Array (MIRA) designed to observe ballistic missile flights at long range.[24] The Cobra Ball monitors missile-associated signals and tracks missiles during boost and re-entry phases to provide reconnaissance for treaty verification and theater ballistic missile proliferation.
 
Vehicles:
 
  • Stryker - Tactical Electronic Warfare System (TEWS) which combines cyberwarfare, signals intelligence and electronic attack.
 
The EW battleship combines all these functions, each in its own 'mount', on one ship.


Antenna Size
 
The key concept that makes the EW battleship work is the available size and power of the various emitter and receiver antennae. 
 
For example, passive sensing is a function of sensor size.  Inter-galactic frequency sensors are massive in order to collect the faint signals from distant stars and galaxies.  A man-portable - or even an aircraft mounted – sensor is limited in size.  A ship, on the other hand, could mount Aegis sized sensor arrays, thereby vastly increasing the sensitivity and effectiveness of the sensor.
 
Similarly, one of the problems with Army man-portable or even mobile electronic warfare (EW) systems is that they are small and inherently power-limited.  Ship size systems with, for practical purposes, unlimited power would eliminate this constraint.
 
 
Dispersion and Redundancy
 
One of the [many] limitations of small EW package systems is that each package must execute several different functions, switching between them as needed.  On a ship, each function can be its own ‘mount’ and, therefore, be continuously available with no need to switch or ‘ration’ power.  The functions can be dispersed as stand alone, complete units.
 
Ships also offer the ability to have more than one of any given function, just as a ship has (or used to have when we still designed WARships) redundant guns.  This allows for both damage resilience and the ability to engage multiple threats simultaneously.
 
 
 
Note:  I’ve not specified any size for this EW battleship.  The term ‘battleship’ refers to combat power, not size.  If everything needed can fit on a canoe, that’s great.  If it requires a ship the size of an Iowa class battleship, so be it.  My pure guess is that something the size of Burke would suffice but I’ll leave it to the engineers to determine that.
 
 
_______________________________

Thursday, September 19, 2024

Paid in Full, Paid in Blood

The previous post about landing craft was informative and somewhat disappointing as far as the comments are concerned.  Too many people want to ignore the lessons that we paid in blood to learn in WWII.  People want to acquire large landing craft outfitted with all manner of sensors and weapons and then cram dozens/hundreds of troops and vehicles on the craft while completely ignoring the lessons of dispersal of risk, efficiency of unloading, procurement cost, and ease of production.
 
Similarly, many people are ignoring the lessons about how to conduct an amphibious assault.  What is the proper role of a carrier group?  What is the role of aircraft?  What is the job of the escorts?  What is the expenditure rate of munitions in an assault?  How much weight of munitions do we need for fire support and how can we delivery the required volume?  We’re also ignoring the history of helo survivability over a battlefield.  And so on.
 
All good discussions must begin with a consideration of history and its lessons.
 
Before we even begin to contemplate changing doctrine and tactics, we’d better be absolutely certain we understand why the doctrine and tactics exist instead of whatever it is we’re thinking about doing.  We learned our lessons in WWII and paid the blood bill for the learning.  That doesn’t mean we can never change anything but it does mean we’d better be awfully sure we’re making a change for the better and, again, that means thoroughly understanding what already exists and why.



 
We also need to keep the K.I.S.S. principle firmly in mind.  Murphy still roams the battlefield and offers no second chances.
 
Think about it.
 
Think hard about it.
 
Think very hard about it and then think again before you abandon established, proven doctrine and tactics.

Tuesday, September 17, 2024

Landing Craft

Problem
 
Amphibious assaults?  A moot concept since we have no landing craft.
 
Wait, what?  Of course we have landing craft!  We have the LCAC, LCU, and LCM.  Well, yes, we have those craft but none of them are initial wave assault craft.  They’re follow on craft for sustainment after the assault site has been secured.
 
The only initial wave landing craft we have is the Marine’s AAV/ACV which is not really a landing craft in the traditional sense of a small boat that can delivery troops to the beach and return to the host ship to get more troops for subsequent waves.  The AAV/ACV is a one-way, amphibious, light armored personnel carrier (APC).
 
Let’s do the math.  An AAV/ACV can carry around 15 combat equipped troops and a MEU (we’ll discuss a MEU but this scales up to whatever size and, yes, we recognize that a MEU, on its own, is not capable of conducting an opposed landing) has around a dozen AAV/ACV so that represents a landing capacity of around 180 troops that can be delivered to the beach.  The remainder of the MEU’s 2200 troops have to find some other way to get ashore.  That’s an initial assault capacity of around 8% of the MEU.
 
A MEU has around 16 transport helos/MV-22s, each of which can carry 15-20 combat loaded troops but, again, these are not initial assault assets.  Helos are not survivable over a battlefield.  They’re follow on transports. 
 
Are 180 troops per MEU really enough to conduct an opposed landing?  Of course not!  Thus, we have a problem.
 
 
Solution
 
So, what’s the solution?  I’ve heard many people recommend foreign “landing craft” such as the CB90, Jehu (Finnish), Raptor (Russian), etc be used as landing craft.  Claimed benefits include a [very small] degree of stealth, speed, armament, and the ability to fit six or so craft in the well deck of an amphibious ship.
 
CB90



Jehu - Note the narrow, restricted exit ramp and imagine
fifteen or so combat laden troops trying to rapidly
debark, one at a time, under fire.


Analysis
 
Let’s take a closer, analytical look at this type of boat in the landing craft role.
 
Troop Capacity – This size boat claims to be able to carry 15-20 or so troops, likely less when the troops are combat equipped.  Let’s be generous and use a figure of 20.  For 6 boats, that’s 120 troops per assault wave.  Is that an assault or a school board meeting?  By comparison, a WWII attack transport carried around 24 landing craft, each of which could carry around 30 troops for a wave of 720 troops.
 
Cargo Capacity – None.  These types of craft have no cargo capacity.  That’s all there is to say about that.  The troops would land with whatever they can carry on their person.
 
Debarkation – One of the constant characteristics across these types of boats are the requirement for the troops to debark via narrow passageways, single file, slowly.  While some claim to have restricted, emergency egress, it is, again, an exceedingly slow and cumbersome process.  Under fire, these boats are death traps for the troops.  Arguably, the most important characteristic of an effective landing craft is the ability to rapidly discharge the troops while under fire.  The WWII Higgins boat allowed the troops to egress, line abreast, several at a time, simultaneously, across the bow ramp.  In an emergency, dozens of troops could simultaneously egress over the open sides.
 
Cost -  This type of craft costs several million dollars apiece, or more, which is way too expensive for a niche craft that is likely to suffer high rates of attrition and needs to be procured in large numbers.
 
 
Conclusion
 
It is patently clear that these types of craft are not suitable for amphibious assaults.  They are suited (and this may even be overly optimistic) for the kind of tiny raid operations or patrol duties they were designed for.  We need to stop looking for foreign landing craft because there are none that are suited for the purpose.  If we want a landing craft, we need to go back to the drawing board and design a dirt-simple, modern, Higgins boat and be done with it. 
 
Of course, such a landing craft would require a radically re-designed amphibious ship to make use of it … you know, something like a WWII Attack Transport (APA) but that’s a separate, though intimately related, topic.
 
Given that ComNavOps sees very little strategic need for future amphibious assaults and given that the Marines have publicly stated that they are out of the assault business, this entire discussion is probably moot but at least we now know what won’t work and can stop bringing up these types of boats.