SEAWOLF™ - Submarine 'Wolf Pack' hunter/killers


Seawolf wolf pack deployment of the Predator high speed attack mini submarine


Naval drone with tremendous firepower as anti ship missiles and anti submarine torpedoes

A Scorpion HK, unmanned battleship is a multi-purpose, multi-tasking naval asset, that holds the potential to reduce pollution from peacekeeping missions and save lives. Modern naval warfare no longer depends on sailors leaping from one ship to another with cutlasses. Modern engagements rely on missiles and the ability of one ship to hit another without getting itself blown up by fighters or aerial drones armed with, you guessed it, missiles. The above design is © copyright BMS Ltd 2014. You can see the placement of 32 SAMs, 4 Tomahawk cruise missiles and 4 MK48 heavyweight torpedoes on this clever concept. Such an armory in one small 170ft (52m) drone destroyer, alters the way navies should think about huge capital assets such as aircraft carriers and nuclear submarines. Such a battleship presents an unacceptable risk to conventional warships, and the lives of those who serve on them. You saw it first at BMS Ltd. PLEASE NOTE THAT THIS PROJECT IS FOR WARGAMING PURPOSES ONLY AND IS NOT INTENDED AND MAY NOT BE USED BY ANY MILITARY FOR ANY WARLIKE PURPOSE.








A nuclear submarine is a sinking waiting to happen



Dinosaurs of the ocean. The bigger they are the more a nation stands to lose on their investment in the wrong technology. The same may be said of aircraft carriers, that put $Billions of dollars of GNP at the lives of loved ones at risk.






It's all about scale and cost. When we say scale, we are not talking about the size of a ship or submarine, we are referring to the coverage of a network of persistent surveillance craft that track enemy submarines for when a first strike may be either necessary or favorable. Indeed, the larger an enemy vessel is physically, the more vulnerable the country is that operates them and the more lives they lose at each sinking - 98 in the case of the Astute above. Far from being a deterrent, such vessels are prime targets to neutralize, to pull the teeth from conventionally superior forces. It's a deadly game of cat and mouse.


Most navies have the technology at their disposal to implement such a system, but no navy can afford the manpower and investment in sufficient numbers of traditionally powered/crewed surveillance units to be effective. This is where autonomous ZCCs come in. They reduce the operational costs in terms of fuel and crew - to the point where such networks becomes affordable - and in due course, indispensable - much as the MQ9 Reaper UAVs are today in the air.


All modern navies are using autonomous vessels and looking to increase their usage to boost operational efficiency.



Grim Reaper - drone hunter killer





The fact is though that the research for the ZCC to become a reality is in the balance. This is the key technology to be cracked, and the race is on to see who takes the lead: east or west. It is likely to be a navy that does not have so much invested in diesel or nuclear vessels that a U turn is unthinkable. Such investment in conventional technology will be the economic brake to the acceptance of vessels that have extremely low operational costs, and of course no risk to human life.


The plain fact is that nobody changes out an old car that is perfectly serviceable, unless there is a very good reason to do so. While there is no real threat of war, especially first strikes, advances in technology will be slower. Expenditure on weapons research is difficult to justify in times of peace.


Disruptive research challenges current conventions in terms of intellectual prowess, exploring new boundaries or adapting existing technologies for deployment in novel ways - that traditionalists typically underestimate. That is of course the whole point of tactical research; to develop strategies that undermine an enemy force to your advantage. See our costing/feasibility STUDIES.



Combat ZCC illustrative of missile weapons


COMBAT ZCC - Showing general missile arrangement in a vessel with crew quarters, and in a drone vessel without crew accommodation. The drone is lighter, so more efficient. The Scorpion and Dragonfly variations of these Hunter-Killers (HKs) are all based on the basic Bluefish ZCC platform. Each specialized version may be converted to the other simply by adding or subtracting the appropriate modules. In the final version we recommend that the SAMs are on a turret or turrets, nose and/or tail.





The map below shows a very basic sample scenario for the deployment of a ZCC network of destroyers armed with weapons to locate, track and destroy enemy submarines. The modern Wolf-pack is surface operated with subsurface weapons, not subsurface targeting surface shipping. Being that ZCCs do not pollute the oceans, it will be a clean kill, save for the loss of human lives and nuclear debris that could arise using conventional explosives. The Predator hunter-killer minisubs do not use explosives to sink submarines - thereby reducing potential contamination. The loss of human life is inevitable in times of war, save only where autonomy is advanced sufficiently to avoid such sacrifice.









Seawolf, wolf pack network submarine countermeasures












INNOVATION - Nuclear submarines are considered by many superpowers to be a covert delivery system and thus immune to detection - hence - an insurance policy against first strike. Airborne submarine hunters are common, but are expensive to purchase and operate, ruling that out as a persistent option.


The concept of the Seawolf autonomous delivery system for may be used with Predator hunter-killers (or similar weapons, including conventional torpedoes). Unfortunately, the lead time to having a Predator HK is not realistic for incorporation in any immediate future fleet, where development time is likely to be many years. 


It is though worth considering that Predator mini-subs are capable of taking out any submarine covertly, a gift that other system do not enjoy. A pack (grid) could neutralize a fleet of submarines simultaneously. Once the wolf-pack acquires a target, it passes that information between a network of autonomous ships, each one having the capacity to launch a Predator (or similar weapon), to sink any nuclear submarine while submerged.


Once a target is acquired using SeaNet tactical strategy, it is continuously tracked until countermeasures, or first strike is/are deemed necessary. The hunter becomes the hunted. A study of a global deployment strategy that will work is long overdue. Combat specification ZCCs cruise at 7-10 knots continuously monitoring the oceans. They are estimated to be able to sprint at up to 20 knots using renewable energy reserves and up to 35 knots in strike mode to engage the enemy using auxiliary power and other means to reduce hull friction





The Predator is a small high-speed attack submarine based on the latest performance torpedo technology. It is designed to hunt down and sink nuclear submarines, but without the operational cost of a submarine support ship. It is about the size and cost of a conventional torpedo. Predator was at first designed to be manned, or driven in drone fashion and/or semi autonomously recoverable. But with the advances in robotics, when used in the Wolf-Pack formation, Predators will be almost exclusively autonomous or drone controlled, for recovery after sinking an enemy submarine. Normally, a weapon that is so devastating is not recoverable. Autonomous versions need not have the human cockpit space and canopy, reducing drag and so improving endurance.


Nuclear submarines are kept at sea as a deterrent to another country's first strike by way of counterstrike and also as a first strike delivery system using Trident or similar nuclear tipped missiles. They are slow and unable to maneuver at close quarters, thus what is perceived as an advantage in terms of brute force works against them in a dog fight situation.




ZCC START UP - A country with virtually no navy, could catapult themselves into a position of considerable strength very affordably, to include: rescue, mine hunting, charting, oceanographic monitoring and military information scouting, by way of fleet multitasking vessels. Fleets from one country, might network with other friendly administrations, to increase effective deterrent and real capabilities in times of conflict. There is no need to train a crew, just the shore based operators, although drone operators should be enlisted from navy crews with real life experience. Strategy may be decided by select chiefs of staff, under direct command of the heads of state, with full accountability on screen in real time.



The Predator mini-sub is designed to neutralize submarines at sea by sinking them covertly without explosive devices, but that could be a last resort.  A pack of Predators would be launched to sink enemy nuclear submarines around the world, prior to a first strike nuclear attack, or simply to take back control of sensitive ocean passages.


The method of sinking is classified, but the specification of the mini-sub itself uses off-the-shelf technology that is well publicized.


A Predator is good value for any Navy that wants to level the playing field and is operating on a budget. A nuclear submarine is worth $billions, representing a significant investment - and that is a double edged sword. For although a large modern nuclear submarine is a formidable fighting machine and a visible deterrent, once such a warship is sunk, that leaves a big hole in any fleet. Aircraft carriers and indeed, any type of warship at sea is also a vulnerable target and may be neutralized very economically - in fact for not much more than the cost of a modern torpedo + of course the delivery system.


Unlike a torpedo which may miss its target, a Predator mini-submarine is guided by sensitive electronics, confirmed by selectable drone mode. The method of sinking can be tailored to the target craft. Overt operations will succeed, but covert operations may be more effective, especially where a navy want to keep the other side guessing as to the disappearance of its fleet, or plan a first strike with a second strike risk eliminated. To evaluate the potential as part of a defence strategy, a navy will need to understand the delivery system and the method of sinking, which is classified information for serious customers only.





Length: 6.8m
Width:  1.67m
Height:  0.73m
Power:  300Kw (400hp)
Cruise range:  50 miles
Charge range:  10 miles
Delivery system:  Wolf-pack
Weapon system:  classified





A high power, high efficiency electric motor drives contra-rotating super-cavitating propellers, to create a gas envelope around the hull of the vessel. The gas envelope allows Predator to travel in a liquid plasma approximately 100 times less dense than water. Test by Russian scientists have shown that speeds of 50-100 knots is possible, to be able to hunt down and sink any nuclear submarine operating today. Many modern torpedo designs are based on gas envelope technology that is far more extreme, where speeds in excess of 150 knots have been recorded, one of the most famous being the Soviet VA-111 Shkval.


Should a target submarine launch torpedoes in a desperate attempt to thwart an attack, the Predator tracks the torpedo(es) with onboard navionic ranging and bearing sensors and takes evasive action, then leads the torpedo(es) back toward the target submarine, avoiding the submarine at a point where the enemy torpedoes acquire the submarine they were fired from and destroy it. The Predator is far more agile than any torpedo. Torpedoes such as the BAE Spearfish, are designed for straight running at slow turning targets, not dog fighting.


The Predator has a large lithium battery pack giving a range of 10 miles at high speed and 50 miles in cruise mode. There is an alternative delivery system that is classified and does not deplete onboard power, and can put a Wolf pack of Predators into the operating theatre at very short notice, should for any reason there be a loss of ZCC cover.


The Predator is equipped with a weapon system that allows sinking of a nuclear submarine virtually undetected. Typically limpet mines, or other explosive charges are employed in frogmen attacks. That is not the case with the Predator, which is another reason that the system could be so devastating.





Not a million miles away from the Predator concept, is Greg Mooney's 5-man mini submersible. These pictures are from December 2000 to January 2001. The VAS 525 SL MK2 is a diver lock-out submersible with a depth rating of 525fsw. The pressure hull is a ASME PVHO steel vessel, while the hydrodynamic envelope is constructed of a composite sandwich. The vessel was built for a private owner as a yacht tender and will be capable of transporting five people, 3 in the pilot compartment and 2 in lockout area or visa versa. The vehicle is to be rigged with a full navigational and communication package as well as several item recovery systems.



Nautilus Underwater Systems  Tank test model submarine


NAUTILUS VAS 525 - LEFT: The steel pressure hull is complete and certified as well as the hydrodynamic envelope. RIGHT: Tank test model of the VAS.



Mini submersible wire frame development rig


NAUTILUS VAS 525 - Greg also built a wire frame to develop the seating and wiring of the pressure hull. This saved over two months construction time because he was able to do all the wiring and plumbing while the pressure hull was still in pieces at the fabrication shop.




Length 23.9 feet
Beam:6.9 feet
height:5.9 feet
Pressure hull Diameter: 48"
Dry weight 9800 lbs.
Crew and passengers: 5
3 diver lockout compartment
Depth rating 525 fsw
Lockout diver depth: USN Diving limits 





Launching a nuclear submarine, is like flushing 98 lives and $billions of tax dollars down the drain. It does though make great headlines for politicians who want the public to think they are safe. ASV Drone HKs might stalk these mighty leviathans with no risk as to loss of life and sink them at very low cost comparatively.






Naval warfare is divided into three operational areas: 


a) surface warfare,

b) air warfare and 

c) underwater warfare (anti-submarine, mine or countermeasures)


Each area comprises specialized platforms and strategies used to exploit tactical advantages unique and inherent to that area.

Modern submarine warfare consists primarily of diesel and nuclear submarines using weapons (like torpedoes, missiles or nuclear weapons), as well as advanced sensing equipment, to attack other submarines, ships, or land targets. 


Submarines may also be used for reconnaissance and the landing of special (covert) forces as well as deterrence. The effectiveness of submarine warfare partly depends on the anti-submarine warfare carried out in response.




In World War II, submarine warfare was split into two main areas, with other oceans being of lesser importance.


1. The Atlantic and 

2. The Pacific.

3. Indian Ocean

4. Mediterranean Ocean


Atlantic ocean

In the Atlantic, German submarines again acted against Allied convoys, much as in World War I. British submarines were active against the Axis warships, submarines and merchant convoys off Norway.

Initially Hitler ordered his submarines to abide by the Prize Rules but this restriction was withdrawn in December 1939. The "wolf pack" was mainly a tactic of the Second World War U-boats. The main steps in this tactic were as follows:

* A number of U-boats were dispersed across possible paths of a convoy.
* A boat sighting the convoys would signal its course, speed and composition to German Naval Command.
* The submarine continues to shadow the convoy, reporting any changes.
* The rest of the pack is then ordered to close to the first boat's position.
* When the pack is formed a coordinated attack is made on the surface at night.
* At dawn the pack withdraws leaving a shadower, and resumes the attack at dusk.

With the later increase in warship and aircraft escorts the U-boat losses became unacceptable. Many boats were lost, and the earlier "aces" with them.


Pacific Ocean

In the Pacific, the situation was reversed, with US submarines hunting Japanese shipping. By war's end, U.S. submarines had destroyed over half of all Japanese merchant ships, totaling well over five million tons of shipping. British and Dutch submarines also took part in attacks on Japanese shipping, mostly in coastal waters. Japanese submarines were initially successful, destroying two U.S. fleet aircraft carriers, a cruiser, and several other ships. However, governed by doctrine that concentrated on attacking warships, rather than more-vulnerable merchantmen, the smaller Japanese fleet proved ineffectual in the long term, while suffering heavy losses to Allied anti-submarine measures. Italian and German submarines operating in the Pacific Ocean were not enough to be an important factor, leaving the Japanese to fend for themselves.


Indian Ocean

Japanese submarines operated in the Indian Ocean, forcing the British surface fleet to withdraw to the east coast of Africa. Once again, their German and Italian allies in the Indian Ocean were never enough to be an important factor.


Mediterranean Ocean 

The Mediterranean Sea was also a very active area for submarine operations. This was true for the British, French and Germans. The Italians were also involved but achieved their greatest success using midget submarines and human torpedoes. They had failed to neutralize Malta as a British base, from where Axis supply convoys to North Africa suffered severe losses, in turn reducing the Axis armies' ability to fight. The Allies were able to successfully keep their armies supplied including Malta. The Kriegsmarine aimed at isolating Malta so as to disrupt British supply convoys to the island, but the Allies gained the upper hand.


U-Boat Warfare - The evolution of the Wolf Pack


Wolf Pack - The U Boat at War


The War against the Nazi U-Boats




The U Boat at War


Grey Wolves


Wolf Pack


The Admiral's Wolfpack


Donitz and the Wolf Packs



Dozens of books have been written about U Boat wolf pack tactics



The advent of the nuclear submarine in the 1950s brought about a major change in submarine warfare. These boats could operate faster, deeper and had much longer endurance. They could be larger and so became missile launching platforms. In response to this attack submarines became important. The US also used nuclear submarines as radar pickets for a while. Diesel-electric submarines continued to be used as they were better in coastal waters and less expensive, while also much quieter than earlier nuclear subs. There have also been major advances in sensors and weapons.

During the Cold War, the United States and the Soviet Union played what was described as a 'cat-and-mouse' game of detecting and even trailing enemy submarines. As the West enjoyed a considerable advantage in the quality of its technology, by the early 80s U.S. attack submarines were almost as quiet as an equivalent body of seawater, a benchmark the Russian Navy did not reach until after the collapse of the Soviet Union. Indeed, the technological difference between the rival powers were so huge, that Soviet subs in the early days could be heard 'across the Atlantic' (in one hyperbole), and Soviet subs were forced to periodically 'clear the baffles' through high-speed, 'jinking' maneuvers that themselves generated noise.

Since the Second World War, several wars, such as the Korean War, Indo-Pakistani War of 1971 and the Falklands War, have involved the use of submarines. However, the importance of the submarine has shifted to an even more strategic role than the disruption of merchant shipping, with the advent of the nuclear submarine carrying nuclear weapons to provide second-strike capability. To counter the threat of these submarines, hunter submarines were developed in turn. Later submarine-launched land-attack missiles were employed against Iraq and Afghanistan. 


The role of the submarine has extended with the use of submarine-launched autonomous unmanned vehicles. The development of new air independent propulsion methods has meant that the diesel-electric submarine's need to surface, making it vulnerable, has been reduced. Nuclear submarines, although far larger, could generate their own air and water for quite extended durations, meaning their need to surface was limited in any case.

In today's more fractured geopolitical system, many nations are building and/or upgrading their submarines. The JMSDF has launched new models of submarines every few years; South Korea has upgraded the already capable Type 209 design from Germany and sold copies to Indonesia. Russia has improved the old Soviet Kilo model into what many are calling equivalent to the 1980s-era 688-class, and so on.

The comments of military historian John Keegan, in his book about naval warfare: "The Price of Admiralty," as to all roles of surface warships will be taken over by submarines, takes no account of a modern Seawolf situation, where submarines are the target for destruction. 


It is though true that at the moment they are the only naval units capable of evading conventional intelligence capabilities (space satellites, airplanes etc.) that a fight between evenly matched modern states could bring to bear on them. The whole point of development is to create a mis-match in technology, to maintain an edge. As Clint Eastwood said in the western 'A Fistfull of Dollars' - "In these parts a man's life depends on a mere scrap of information."



Das Boot, a film by Wolfgang Petersen



A modern submarine is a multi-role platform. It can conduct both overt and covert operations. In peacetime it can act as a deterrent as well as for surveillance operations and information gathering.

In wartime a submarine can carry out a number of missions including:

* Surveillance and information gathering
* Communication of data
* Landing of special operations forces
*Attack of land targets (first cruise missile fired from sub, Gulf War, USS Louisville, Jan 1991)
* Protection of task forces and merchant shipping
* Denial of sea areas to an enemy

The United States Navy says, "Submarines require no vulnerable underway logistics chain nor depend on mutual defense from other platforms for survivability."







Solicitation Number: DARPA-BAA-13-20


Agency:   Other Defense Agencies
Office:     Defense Advanced Research Projects Agency
Location:  Contracts Management Office


Synopsis - Added May 02, 2013 8:12 am


DARPA is soliciting innovative research proposals of interest to the Defense Sciences Office. Proposed research should investigate innovative approaches that enable revolutionary advances in science and technology. Specifically excluded is research that results primarily in evolutionary improvements to the existing state of the art.




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FBO DARPA opportunity

Submarine Warfare

List of sunken nuclear submarines

Battle Pirates




HMS Astute 1st of Class BAE Systems

HMS Vanguard- Trident

INS Sindhurakshak - explosion & sinking

Lusitania - Torpedo attack

Predator - Covert submarine hunter/killer

Seawolf - Autonomous wolf pack deployment of Predator mini-subs

U Boats - 1st and 2nd World Wars

U20 - Kapitan Leutnant Walther Schwieger

USS Alabama

USS Bluefish WWI submarine

USS Bluefish - Nuclear submarine

USS Flying Fish

USS Nautilus - 1st nuclear submarine & subsea north pole passage

USS Scorpion







FICTION Operation Neptune - An advanced nuclear submarine is hijacked by environmental extremists intent on stopping pollution from the burning of fossil fuels. The extremists torpedo a number of oil wells as part of a campaign to cause energy chaos, with bigger plans to come. If you enjoyed Under Siege or The Hunt for Red October, this is a must for you.




Operation Wolverine, Seawolf robotic battleship network



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