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Herman Hum
24 Feb 05, 14:12
From National Defense Magazine, March 2005 issue

http://www.nationaldefensemagazine.org/issues/2005/Mar/UF-Shrewd_Tactics.htm

http://img218.exs.cx/img218/2126/p186pi.jpg (http://www.nationaldefensemagazine.org/issues/2005/Mar/UF-Shrewd_Tactics.htm)

Shrewd Tactics Underpin Navy Strategy to Defeat Diesel Submarines

In preparation for future wars, U.S. ship commanders will be trained to employ unconventional tactics against enemies equipped with diesel submarines.

Navy planners anticipate that adversaries will try to deny U.S. forces access to key strategic coastal areas by deploying quiet diesel-electric submarines. These hard-to-detect boats would make it difficult for U.S. ships to move around freely without exposing themselves to an enemy torpedo shot. For that reason, the U.S. Navy is adopting an entirely new approach to tackling this threat, says Capt. David Yoshihara, who heads the Antisubmarine Warfare Task Force, a group specifically created to help fix the Navy’s current shortfalls in antisubmarine warfare.

A new “concept of operations,” approved in late December by Chief of Naval Operations Adm. Vernon Clark, makes a drastic departure from the traditional ways of conducting antisubmarine warfare, Yoshihara says in an interview.

Clark views the new concept of operations as a remarkable achievement, because it provides the Navy—for the first time since the end of the Cold War—a guiding document to develop ASW tactics and techniques, Yoshihara explains.

The concept of operations, fundamentally, is built on the notion that U.S. commanders will get accurate information about the location of potential enemy submarines, via a network of miniaturized sensors that will be deployed in strategic coastal areas. The information provided by those sensors, he says, would allow commanders to “see things and gain an understanding before they move in.”

Current ships don’t have access to such intelligence, and primarily rely on massive firepower to defend themselves against enemy submarine strikes.

That defensive stance makes it difficult for U.S. ships to maneuver and gain access to a particular area of operations—especially in coastal waters—close to where U.S. forces may engage in combat. The new concept favors an “offensive posture,” which means that U.S. ships will try to beat the enemy by getting to a contested area faster, before these adversaries have a chance to deploy their submarines.

The sort of speedy response envisioned in the new antisubmarine warfare concept is unprecedented in the U.S. Navy, where ASW occasionally is mocked as “awfully slow warfare,” according to Adm. John Nathman, vice chief of naval operations.

The concept now in place shrinks the response time from months to days, says Yoshihara. The measure of success, in this context, is the ability to “seize the initiative very quickly … To secure the battle space under our terms and conditions.” In short, “we have to be able to enter an area and claim it as our own.”

The previous strategy was “attrition based,” he says. “We were counting on killing more of them than they were able to kill us.” Under the new concept, “We don’t necessarily have to kill submarines. We just have to be able to operate in the environment to our satisfaction.”

Some of the unconventional ASW tactics envisioned for the future are used in other war-fighting disciplines: decoys and deception, information operations and psychological warfare. It comes down to a basic question, Yoshihara says, “How can we influence enemy behavior so we can gain access quickly, and accomplish our mission?”

Navy leaders are confident this strategy will work, Yoshihara says, because it takes into account the real-world experience and the needs of fleet commanders, instead of becoming yet another policy directive written by “a bunch of guys within the Beltway, who get accused, rightfully so, of not fully understanding the fleet.”
An ASW command based in San Diego is responsible for collecting input from the fleet and making sure commanders’ priorities are met, he adds. “They’ll tell us what they believe the fleet needs to fill capability gaps.”

Without that support, Yoshihara says, the new concept of operations likely would be dismissed by fleet commanders as another “Navy staff drill” that fails to grasp the needs of the fleet.

Although Navy officials would not discuss specific scenarios they foresee in future conflicts, they stress their belief that diesel-electric submarines are proliferating around the world and will be used to deny U.S. forces access to coastal areas.

Quiet submarines, for the most part, cannot be detected with the conventional sonar technologies now employed aboard the Navy’s nuclear-powered submarines and surface ships.

Modern diesel boats have advanced propulsion systems that run quietly underwater, as well as coatings that eliminate echoes, says Navy Capt. Curt Stevens, an antisubmarine warfare expert.

But technology alone does not provide the definitive edge, Stevens explains. Sophisticated tactics and training certainly can make up for outdated technology. “We ought to not lose sight that old submarines—even those 20 to 30 years old—can be very capable adversaries,” he says. “A lot may depend on crew training and their doctrine … A low-end submarine with a very capable and competent crew can be potentially a bigger threat than the latest and greatest submarine with a poorly trained and poorly motivated crew.”

For U.S. Navy commanders, the challenge is to counter savvy enemy tactics with speed and instant access to information, says Yoshihara.

U.S. forces engaged in antisubmarine operations cannot just rely on submarines, surface ships and airplanes. They need both waterborne and airborne sensors to collect information around the clock, develop a “common picture of the battle space, and distribute it,” says Nathman.

This goal cannot be achieved, however, until the U.S. Navy and the other services develop and deploy an overarching command-and-control network, Yoshihara says.

The Defense Department has spent billions of dollars on high-tech communications, but there is no joint command-and-control net that integrates all U.S. military assets. “We talk about that a lot,” says Yoshihara. “There is a large gap in our ability to tie everything together.”

Also, the Navy will need sensors that can process information autonomously. There will not be enough bandwidth to move mountains of data from sensors at sea, for example, to human-operated workstations on land or aboard ships. Yoshihara characterized this as a “tough” challenge for technologists.

Another item on the ASW wish list, he says, is a “rapid attack” torpedo that can be guided with pinpoint accuracy.

To better understand what technologies are available in the private sector, the ASW task force plans to issue “broad area announcements” to industry on a regular basis.

Scully
24 Feb 05, 15:36
Interesting article. Did I read correctly that they want to be able to get a sub on station within a day or two? If that's the case, they'll probably need to increase the number of subs in the fleet, correct?

D-ploy
24 Feb 05, 16:39
Interesting article. Did I read correctly that they want to be able to get a sub on station within a day or two? If that's the case, they'll probably need to increase the number of subs in the fleet, correct?
As I read this, they did not specifically talk about a submarine, and I think this would not really be feasible. I think they plan to deploy other platforms as quickly as possible, other platforms even being just sensor networks that keep an area under surveillance until the "Silent Service" arrives.

This may be a continuation of the trend we see at land warfare, where roboters or remote controlled sensors are used to gather intelligence on a battlefield.

I would think with the advances in technology this might be a lot more cost effective than deploying some sub that costs millions including a sizable crew.

Cheers
Oliver

Sunburn
25 Feb 05, 02:35
Speed = noise = bad.

Plus, the "other guy" will always have the advantage of having his sub forces closer to the theater. Unless US boats can suddenly go to 200 knots or something, the potential adversary will own the area long before they arrive. The only practical way to avoid this is to rotate own forces in and out of the theater on a regular basis (as is current practice, in fact). This, in turn, strains the resources needed to maintain a continous presence.

HaroldHutchison
25 Feb 05, 15:52
Sure makes SURTASS LFA look like a good bet for the LCS to carry, IMHO.

Herman Hum
26 Feb 05, 03:15
Doesn't anyone else find this strategem reminiscent of the Electronic Fence that Secretary of Defense McNamara proposed to throw up around the Ho Chi Minh Trail and North Vietnam?

JClark_1
26 Feb 05, 09:30
Actually, this strategy makes sense. Sensors are so much more capable than they were during the height of the Cold War, the current model used for ASW, owing mostly to miniturazation and satcom technology. It's conceiveable to see a Tomahawk distributing a mini-SOSUS line, one that doesn't use cables. US warfighting strategy today is eager to take advantage of tech, since knowing where your enemy IS, is 90% of the battle. Selected enemy units can be killed, in order to move past the patrol line, or MEBA, and get into the enemies rear.

Imagine being in a late flight LA, or a Sea Wolf, or Virginia, and having the ability to simply stick an antenna above the water, and know with great accuracy where enemy subs and surface units are over a 100 miles away....and never once use a sensor yourself to gain that information. Diesel subs are very quiet, for sure....but they do have to fire that noisy diesel every now and then. And if the sensors are good enough (and I suspect they are) they'll even spot the SSKs at 5 knots.

Knowledge of the battlefield is the primary means of controlling it. You don't have to kill everything there to accomplish control, either, just be able to accomplish your mission. Sounds like the Navy has a plan, and I hope for all sides concerned, that they won't have to battlefield test it. :thumup:

JClark_1
26 Feb 05, 09:32
Doesn't anyone else find this strategem reminiscent of the Electronic Fence that Secretary of Defense McNamara proposed to throw up around the Ho Chi Minh Trail and North Vietnam?

On the face of it, yes, but everyone but the folks in the Five Sided Funny Farm knew it was a joke. Early tech, that sometimes worked, and early on proved that information is only as good as you can interpret it, and act on it. :nuts:

Sunburn
26 Feb 05, 09:49
[...] information is only as good as you can interpret it, and act on it. :nuts:

That has historically been the weakest link on the intelligence chain (particularly on the tactical level), and I believe will be the primary hurdle in any such endeavor. Sensor tech is mature enough, but the effective filtering, processing and dissemination of information is what will make or break a system of this type. SOSUS can of course be used as a starting point (no need to completely re-invent the wheel), but the factors that made it particularly successful (deep sound channel, super-noisy early Soviet subs, relative absence of ambient background noise in these frequency bands) are unlikely to be present in this case (and if they are, then any new system will be superflous). It will be interestng to watch if it can be made to work, and what it will take - in terms of shaking-up long-established ways of doing things.

JClark_1
26 Feb 05, 10:46
Dimitris, the two limiting factors in sonar are sensor quality (can I hear the whale fart in the woods?) and sensor processing (was that a whale fart, or a snorter coming up for a lungful out there at the second CZ?). I submit, that in the past 20 years, that sensors have improved somewhat, and that processing has improved exponentially. Based on my discussions with someone who wears officers dolphins, US sonar is a lot better than anything we know of. And no, I don't know to what degree, and yes, I didn't want to know :laugh:

The wild card in this scenario, is new tech: Networking. Virtually every "...Proceedings" I've read for the past 3 years has at least one article about "network centric" warfare, or the ability to tie all platforms together to make the "observe, orient, decide, act(OODA) cycle so much shorter than the bad guys, as to allow you to run rings around him. To a very limited extent, this was first shown in Gulf War1, and somewhat more in GW2. The downside, in my perception, is much like what American soldiers experienced in Vietnam, when battlefield commanders found out how useful helos were in battle management. I've read that more than once, ground commanders were inclined at times to either shoot their radios, or the helo fluttering above them. I'm VERY distrustful of this concept, since it places the fates of the folks at the spear in the hands of those in air-conditioned offices half a world away holding the shaft.

Only time, and a war will tell...and I sincerly hope I stay simply worried about it. :whist:

Sunburn
26 Feb 05, 12:10
Dimitris, the two limiting factors in sonar are sensor quality (can I hear the whale fart in the woods?) and sensor processing (was that a whale fart, or a snorter coming up for a lungful out there at the second CZ?). I submit, that in the past 20 years, that sensors have improved somewhat, and that processing has improved exponentially. Based on my discussions with someone who wears officers dolphins, US sonar is a lot better than anything we know of. And no, I don't know to what degree, and yes, I didn't want to know :laugh:

I know that quite well :thumup:. The problem is not getting the information. The problem is getting the same information from, say, ten different sources (sensors or otherwise), deconflict it (MAJOR!!! headache), identify the threat for what it really is, prioritise it and distribute the data to the appropriate forces. And everything must be done very quickly. Can it be done? Yes. Can it be done well enough to matter? We'll have to see.


Only time, and a war will tell...and I sincerly hope I stay simply worried about it. :whist:
[/quote]

I think we'll see at least another major conflict in our lifetimes. And by "major" I mean something that will really make both Desert Storms and Allied Force seem simple shoot-em ups by comparison. I don't have any doubt as to the victor, but I'll be very interested to see the _how's_ and the aftermath of that war.