The Dutch-Belgian mine countermeasures (MCM) mothership
project offers a glimpse at one vision of future mine countermeasures. MCM motherships have been frequently
discussed and proposed for US Navy mine clearance efforts. In fact, the original purpose of the Afloat
Forward Staging Base was supposed to have been to act as an MCM mothership. However, that usage appears to have fallen by
the wayside as the ship searches for a new mission (see, “AFSB – Looking For Something To Do”). Regardless, let’s take a look at the
Dutch-Belgian MCM mothership project and see if there are any lessons from the
project that are applicable to US Navy MCM needs.
In no particular order, here are some observations, good and
bad, collected from a YouTube promotional video[1] narrated by the program
manager:
Ship Size – The
mothership is 82 m long (269 ft) with a displacement of 2800 tons. Maximum speed is 15 kts and range is 3500 nm
(speed basis unknown). Base crew is 33
with a capacity of 63. Contrast this
with the Freedom class LCS MCM which is 378 ft long with a displacement of 3500
tons and a maximum speed of 40 kts.
Clearly, in the quest for multi-mission modularity, the LCS was grossly
overbuilt for the MCM role. Overbuilt
means wasted money and resources.
 |
| Dutch-Belgian MCM Mothership |
Buzzwords and
Graphics – The mothership project managers refer to the MCM equipment as
the ‘toolbox’ which is, presumably, a marketing buzzword suggesting
modularity. This kind of buzzword
fascination serves no beneficial purpose and contributes to a feeling of
undeserved superiority and arrogance. In
other words, when exposed to buzzwords on a daily basis, people begin to
believe the hype and fail to ruthlessly examine the concepts and execution,
believing that the system is inherently superior. We’ve seen this with the LCS, Zumwalt, Ford,
F-35, etc. … all abject failures due, in large measure to
a failure to ruthlessly examine and critique the projects at early stages. The projects were protected by their
buzzwords. No one wanted to be seen
contradicting or criticizing the magnificent buzzwords.
Similarly, today’s digital public relations graphics are
hugely detrimental to programs. Again,
they convey an awe-inspiring sense of superiority and accomplishment that
blinds program personnel to the flaws in the product. It may not seem like it but glitzy graphics
are one of the causes of project failure.
Hosting – The
mothership can host two UAVs, two RHIBs, and two unmanned surface vessels (USV). While that technically meets the definition
of a mothership, in that it plays host to a smaller craft, it is a very small complement
for a mothership. I would have preferred
to see a mothership capable of hosting a dozen USVs and a dozen UAVs (although
I’m dubious about the value of small UAVs for MCM work). That would make the mothership a significant
MCM asset.
Hosting merely two USVs and two UAVs of dubious utility is a
very minimal capability. The two RHIBs are, presumably, for personnel movements
and, perhaps, diver platforms for addressing single mines which serve no useful
purpose in combat mine clearance operations.
That leaves just two USVs which are far too few to be effective in
combat mine clearance.
Launching – One
decidedly positive feature is the presence of two separate davit based USV
launch mechanisms, port and starboard.
This provides redundancy and speed of operations as opposed to a single
launch point. One of the major failings
of the LCS MCM variant was the installation of only a single UUV/USV launch
point which has become a logistic and efficiency choke point with individual
launches and recoveries requiring one to two hours per evolution.
Communications –
The program manager emphasized that the mothership needed extensive
communications with the various unmanned vehicles. The concept of operations calls for a stand
off distance of 12 nm from the minefield and the UAVs are intended to act as
communication relays as well as providing surface mine visual detection. The downside of all the communications is
that it provides the enemy with a positive location. Extensive, continuous communications will be
detected regardless of any claims of line-of-sight or low probability of
intercept.
Sonar – The
mothership has a mine and obstacle avoidance sonar in recognition of the
reality of operating near a minefield and never being 100% sure that you’ve avoided
all mine threats. This is lacking in the
LCS MCM, I believe.
Shock Testing –
The mothership was tested for resistance to nearby explosive shocks although no
details were provided as to test conditions.
As you recall, the LCS failed its shock testing quite badly with the
explosive loads having to be reduced and the final tests cancelled due to
anticipated damage. Being shock
resistant is just a common sense requirement for a MCM vessel.
Mine Hunting –
The mine hunting concept involves at least two to three passes. The individual steps are: detection, identification, and
destruction. This is a very time
consuming process and is, essentially, a one-at-a-time process as opposed to
sweeping. The process is suitable for
small area clearance with no time constraints but would be unsuited for combat
clearance of large areas in short time frames.
Additional information is available in a Naval News article
[2]
Conclusion
So, what does all this offer the US Navy in the way of
lessons?
There are aspects to like about the Dutch-Belgian MCM
mothership such as multiple launch mechanisms, mine detecting sonar, limited
size, limited speed, and single function.
There are also aspects that are detrimental such as the very
limited vessel capacity, the inclusion of UAVs that serve no real MCM purpose,
the limited number of launch/recovery stations, and the need for incessant
communications.
Considering the benefits and detriments, it is possible to
design a conceptual MCM mothership for the US Navy. An MCM mothership should have the following
characteristics:
Host at least a dozen USVs capable of conducting sweep operations as opposed to one-at-a-time hunting.
Speed should be limited to around 15 kts which is sufficient for the task and avoids over-building and unnecessary costs.
Physical dimensions should be minimized to the extent possible.
No aviation capabilities beyond Scan Eagle type UAVs and even that should be justified by a CONOPS that can actually benefit from them.
Very long endurance and range.
With the demise of most/all of the Freedom class LCS, the Navy is woefully short of MCM assets and the LCS is not even a capable, effective MCM asset if it was available in numbers. We desperately need a new MCM ship and a mothership, as described, would be a good start.
As a reminder, the Allies used over 250 minesweepers for the Normandy assault.
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[1]https://www.youtube.com/watch?v=mCrfvHAKJwg
[2]Naval News website, “This Is What The Future Belgian
& Dutch MCM Motherships Will Look Like”, Xavier Vavasseur, 27-May-2019,
https://www.navalnews.com/naval-news/2019/05/this-is-what-the-future-belgian-dutch-mcm-motherships-will-look-like/