Robotic submarines and autonomous underwater vehicles (AUVs) are increasingly being used for military and civilian purposes. The US Navy is testing the use of AUVs to detect mines in very shallow waters where ships and manned submarines cannot operate safely. AUVs can be programmed to systematically scan areas using sonar to locate mine-like objects. Additionally, underwater satellites and autonomous robots are helping with anti-submarine warfare by detecting enemy submarines.
Submarine attack .
What is a submarine?
History of submarine .
Submarine’s Navigation .
How a Submarine works .
Torpedoes .
Life support systems .
World’s First Submarine attack .
hello friends.....
submarine is a work in underwater and easily detect to enemy or underwater travel in the tourist. and this presentation shows, how to submarine work in under water in each parts or marine ship etc.
Submarine attack .
What is a submarine?
History of submarine .
Submarine’s Navigation .
How a Submarine works .
Torpedoes .
Life support systems .
World’s First Submarine attack .
hello friends.....
submarine is a work in underwater and easily detect to enemy or underwater travel in the tourist. and this presentation shows, how to submarine work in under water in each parts or marine ship etc.
We know that mesothelioma patients would rather stay local when receiving treatment,rnso we will review options for private medical centers, surgical consultants, clinical trials,rnand match you up with friendly, local physicians wherever we can.
Sea power session 4-glorious revolution and beachy head for pdfJim Powers
The Second Hundred Years War begins as the Glorious Revolution aligns England and the Netherlands against Louis xiv under the same monarch William iii of Orange. Revised version
We know that mesothelioma patients would rather stay local when receiving treatment,rnso we will review options for private medical centers, surgical consultants, clinical trials,rnand match you up with friendly, local physicians wherever we can.
We know that mesothelioma patients would rather stay local when receiving treatment,rnso we will review options for private medical centers, surgical consultants, clinical trials,rnand match you up with friendly, local physicians wherever we can.
Sea power session 4-glorious revolution and beachy head for pdfJim Powers
The Second Hundred Years War begins as the Glorious Revolution aligns England and the Netherlands against Louis xiv under the same monarch William iii of Orange. Revised version
We know that mesothelioma patients would rather stay local when receiving treatment,rnso we will review options for private medical centers, surgical consultants, clinical trials,rnand match you up with friendly, local physicians wherever we can.
Briefly describe how the development of steam powered ships transfor.pdfprajeetjain
Briefly describe how the development of steam powered ships transformed naval warfare.
Solution
Development of steam powered ships
And transformation in naval warfare
A steamship, often referred to as a steamer, is an ocean faring seaworthy vessel that is propelled
by one or more steam engines that typically drive (turn) propellers or paddlewheels. The first
steamships came into practical usage during the early 1800s;
The first steam engines worked by filling a cylinder with steam, then condensing it to water. The
vacuum created drew the piston into the cylinder. These “atmospheric” engines were useful for
pumping out mines and other tasks where their weight was not important. They were far too
heavy and bulky to use aboard ships, however. James Watts’s improved steam engine drove the
piston in the opposite direction—expanding steam, rather than atmospheric pressure on a
vacuum was the driving force. Such engines could be made small enough to power a ship. Their
earliest use was to turn a pair of huge side wheels.
Steam gave navies a great strategic advantage. Steam warships no longer depended on weather
and could cross the oceans much faster than sailing ships. “Seizing the weather gauge”
(maneuvering into the best location to take advantage of the wind) had long been a favorite tactic
of British seamen. It no longer gave any advantage. For that reason, Britain, although it was the
home of the first steam engines and it utterly depended on its navy for its primacy in world
affairs, tried to retard the development of steam-powered ships. British naval personnel were the
most skilled in the world; British shipyards devoted to building sailing men-of-war were the
biggest in the world; British technology in preserving food for long journeys, manufacturing the
heavy, short-range cannons, called carronades, and everything else needed for wooden, sail-
driven warships, led the world. If the world’s navies went to steam, all of that would be
worthless.
In 1828, the British admiralty expressed their views on steam-powered warships:
Their lordships feel it is their bounden duty to discourage to the utmost of their ability the
employment of steam vessels, as they consider that the introduction of steam is calculated to
strike a fatal blow at the naval supremacy of the Empire.
Steamships. In his classic study, Sea Power in the Machine Age, Bernard Brodie observed that
navies were relatively late in utilization of the technological advances of the machine age.
Progress in steampower development was followed closely by the various admiralties—Great
Britain, France, and the United States being most active. During the nineteenth century, the
steam warship was by far the most important of the great naval revolutions, the most significant
such innovation in warships since the fifteenth century. Steampower completely revised naval
tactics and strategy; now ships could go anywhere, any time. During a transition period at
midcentury, the largest warships retaine.
We know that mesothelioma patients would rather stay local when receiving treatment,rnso we will review options for private medical centers, surgical consultants, clinical trials,rnand match you up with friendly, local physicians wherever we can.
The U.S. Navy's christens its huge $7bn stealth ship that looks like a fishing boat on radar
My recommendation
Ecuador need ships of good quality, with equipment of tactital operations and radars for the drougs embarcations located in the sea.
Need ships for the sea security, with good armament how the US Navy Army.
It is an English project for class XI for the chapter WE'RE NOT AFRAID TO DIE .....IF WE CAN ALL BE TOGETHER. This is an amazing and interesting topic. Work like a pro and become a director😀
We know that mesothelioma patients would rather stay local when receiving treatment,rnso we will review options for private medical centers, surgical consultants, clinical trials,rnand match you up with friendly, local physicians wherever we can.
We know that mesothelioma patients would rather stay local when receiving treatment,rnso we will review options for private medical centers, surgical consultants, clinical trials,rnand match you up with friendly, local physicians wherever we can.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
1. ROBOTIC
SUBMARINES
a large crewed autonomous vessel.
However, historically or colloquially,
submarine can also refer to medium-
sized or smaller vessels (midget
ABSTRACT
submarines, wet subs), remotely
Today’s Navy is a blue-water force--its operated vehicles or robots. The
strengths are in the depths, not the adjective submarine in terms such
shallows -- but it’s preparing for a as submarine cable, means "under the
brown-water fight.
sea". The noun submarine evolved as a
The adaptations and inventions that shortened form of submarine boat (and
allow sailors to not only fight a battle, is often further shortened to sub).[citation
but also live for months or even years needed]
For reasons of naval
underwater are some of the most brilliant tradition submarines are usually referred
developments in military history. to as "boats" rather than as "ships",
Not so long ago, a naval force worked regardless of their size
entirely above the water; with the Although experimental submarines had
addition of the submarine to the standard been built before, submarine design took
naval arsenal, the world below the off during the 19th century, and they
surface be “Studying the creatures at were adopted by several different navies.
these vents, and comparing them with Submarines were first widely used
species at other vents around the world; during World War I (1914–1918) and
will help us to understand how animals now figure in many large navies.
disperse and evolve in the deep ocean,” Military usage includes attacking enemy
said Jon Copley with the University of surface ships or submarines, protection,
Southampton. blockade running, ballistic missile
submarines as part of a nuclear strike
INTRODUCTION force, reconnaissance, conventional land
attack (for example using a cruise
A submarine is a watercraft capable of
missile), and covert insertion of special
independent operation underwater. It
forces. Civilian uses for submarines
differs from a submersible, which has
include marine science, salvage,
more limited underwater capability. The
exploration and facility
term submarine most commonly refers to
inspection/maintenance. Submarines can
2. also be modified to perform more the bathyscaphe, which in turn was an
specialized functions such as search-and- evolution of the diving bell.
rescue missions or undersea cable repair.
Submarines are also used in tourism, and
for undersea archaeology.
Most large submarines consist of a
cylindrical body with hemispherical
(and/or conical) ends and a vertical
structure, usually located amidships,
which houses communications and
sensing devices as well as periscopes. In
modern submarines this structure is the
"sail" in American usage, and "fin" in
European usage.
FIRST SUBMERSIBLES
A "conning tower" was a feature of
earlier designs: a separate pressure hull
above the main body of the boat that
allowed the use of shorter periscopes.
There is a propeller (or pump jet) at the
rear and various hydrodynamic control
fins as well as ballast tanks. Smaller,
deep diving and specialty submarines
may deviate significantly from this
traditional layout.
Submarines have one of the largest The Drebbel, the first navigable submarine
ranges of capabilities in any vessel, The first submersible with reliable
ranging from small autonomous information on its construction was built
examples to one- or two-person vessels in 1620 by Cornelius Drebbel,
operating for a few hours, to vessels a Dutchman in the service of James I of
which can remain submerged for 6 England. It was created to the standards
months such as the Russian Typhoon of the design outlined by English
class - the biggest submarines ever built mathematician William Bourne. It was
and in use. Submarines can work at propelled by means of oars. The precise
greater depths than are survivable or nature of the submarine type is a matter
practical for human divers. Modern deep of some controversy; some claim that it
diving submarines are derived from was merely a bell towed by a boat. Two
improved types were tested in
3. the Thames between 1620 and 1624. In 5. It may be of unspeakable benefit for
2002 a two-person version of Bourne's submarine experiment
design was built for the BBC TV
programme Building the IN THE AMERICAN CIVIL
Impossible by Mark Edwards, and WAR
successfully rowed under water
at Dorney Lake, Eton.
Though the first submersible vehicles
were tools for exploring under water, it
did not take long for inventors to
recognize their military potential. The
strategic advantages of submarines were
set out by Bishop John
Wilkins of Chester, England,
in Mathematicall Magick in 1648:
1. This private: a man may thus go to
any coast in the world invisibly, without
The adjective submarine in terms such
discovery or prevented in his journey.
as submarine cable, means "under the
sea". The noun submarine evolved as
2. This safe, from the uncertainty of
The 1862 Alligator, first submarine of
Tides, and the violence of Tempests,
the United States Navy. It was designed
which do never move the sea above five
by the French engineer, Brutus de
or six paces deep. From Pirates and
villeroi. During the American Civil war
Robbers which do so infest other
both sides successfully built working
voyages; from ice and great frost, which
submarines. The Confederate States of
do so much endanger the passages
America submarines were all designed to
towards the Poles.
attack the Union blockade of Southern
3. It may be of great advantages against ports. Two operational unnamed
a Navy of enemies, who by this may be Confederate submarines were spotted
undermined in the water and blown up. during the latter half of 1861, one in
James River in Virginia and another in
4. It may be of special use for the relief New Orleans. The United States Navy
of any place besieged by water, to was first interested in submarines as a
convey unto them invisible supplies; and way to clear obstacles. Interest in attack
so likewise for the surprisal of any place submarines began at least by May 1861,
that is accessible by water. when French engineer Brutus de villeroi
4. tested an early submarine design in depths of up to 6,000 meters. New
Philadelphia harbor in what may have developments in robotics have also led to
been an effort to attract the Navy’s the creation of AUVs, or Autonomous
attention. Most Confederate submarines Underwater Vehicles. The robotic
were built under the auspices of the submarines are programmed in advance,
Confederate Secret Service rather than and receive no instruction from the
the Confederate Navy, with only three surface. HROV combine features of both
being well known and documented. ROVs and AUV, operating
Others, both Confederate and Union, are independently or with a cable Argo was
known to have existed but their names employed in 1985 to locate the wreck of
and designs have escaped the historical the RMS Titanic; the smaller Jason was
record. In all, evidence indicates that a also used to explore the ship wreck.
combined total of over twenty
operational submarines were built by
both sides during the conflict.
UNMANNED SUBMARINES
One of the first unmanned deep sea
vehicles was developed by the
University of California with a grant
from the Alan Hancock Foundation in
the early 1950s to develop a more
economical method of taking photos
miles under the sea with an unmanned
steel high pressure 3,000lb sphere called
a benthograph which contained a camera According to the BBC, UK’s newest
and strobe light. The original autonomous underwater vehicle known
benthograph built by USC was very as Autosub6000 is on its way to explore
successful in taking a series of the deepest undersea volcanoes in the
underwater photos till it became wedged Caribbean. The robotic submarine can
between some rocks and could not be dive as far as 6000 meters and it will be
retrieved. complemented by the remote controlled
ROVs, or Remote Operated Vehicles, submarine Isis. The robots will explore
are seeing increasing use in underwater the volcanoes all along the Cayman
exploration. These submersibles are Trough with Autosub6000 going first to
piloted through a cable which connects locate the volcanic vents at the bottom of
to the surface ship, and they can reach the ocean and Isis going second to
5. collect samples around the vents. The of-concept artificial lateral line system. It
two submarines will help scientists learn enables a distant touch hydrodynamic
more about life in the deep ocean; the imaging capability to critically augment
team on board the vessel James Cook sonar and vision systems. We show that
which will be heading to the Cayman the artificial lateral line can successfully
Trough expects to find many new perform dipole source localization and
species during the expeditions. Robots hydrodynamic wake detection. The
are helping us explore so much of nature development of the artificial lateral line
we could never hope to explore is aimed at fundamentally enhancing
ourselves in the near future. Several human ability to detect, navigate, and
robots are currently studying the surface survive in the underwater environment.
of Mars looking for water and traces of A submarine will have a variety of
past or current life while these two sensors determined by its missions.
submarines will help us understand life Modern military submarines rely almost
on our planet. The Lunar X-Prize is entirely on a suite of passive and active
determined to prove that robotic sonars to find their prey. Active sonar
missions to the Moon can be both cheap relies on an audible “ping” to generate
and an effective method for scientific echoes to reveal objects around the
research (not that the latter has not been submarine. Active systems are rarely
proved already by NASA’s planetary
used, as doing so reveals the sub’s
rovers but those were definitely not presence. Passive sonar is a set of
cheap.) Scientific applications for sensitive hydrophones set into the hull or
robotics are by far the most valuable and trailed in a towed array, generally
worthwhile of all robotics endeavors
several hundred feet long. The towed
undertaken today. array is the mainstay of NATO
submarine detection systems, as it
SENSORS reduces the flow noise heard by
Nearly all underwater vehicles and operators. Hull mounted sonar is
surface ships today use sonar and vision employed to back up the towed array,
for imaging and navigation. However, and in confined waters where a towed
sonar and vision systems face various array could be fouled by obstacles.
limitations, e.g., sonar blind zones, dark Submarines also carry radar equipment
or murky environments, etc. Evolved for detection of surface ships and
over millions of years, fish use the lateral aircraft. Sub captains are more likely to
line, a distributed linear array of flow use radar detection gear rather than
sensing organs, for underwater active radar to detect targets, as radar can
hydrodynamic imaging and information be detected far beyond its own return
extraction. We demonstrate here a proof- range, revealing the submarine.
6. Periscopes are rarely used, except for
position fixes and to verify a contact’s
identity. Civilian submarines, such as the
DSV Alvin or the Russian Mir
submersibles, rely on small active sonar
sets and viewing ports to navigate.
Sunlight does not penetrate below about
300 feet (91m) underwater, so high
intensity lights are used to illuminate the
viewing area.
The Nautile submarine, owned by the
French Research Institute for
Exploitation of the Sea (IFREMER).
Bruno Barnouin, a spokesman for
SUBMARINE STEMS IFREMER, told New Scientist the
TANKER'S OIL LEAKS repairs ought to reduce the amount of oil
A submarine repairing the sunken leaking from the ship’s hull to less than
prestige oil tanker has finished its work – one tonne per day. The original rate was
its operators claim they have stemmed estimated to be more than 100 tonnes per
99 per cent of the leaking. The tanker day. He says the Spanish government,
was patched where it lies, on the floor of who funded the work, will now inspect
the Atlantic, 3.5 kilometers below the the repairs.
surface. It was damaged in November by Metal shot
severe weather off the north-west coast The Nautile performed its first dive on
of Spain and was towed 200 kilometers 16 December. The submarine’s crew
out to sea, where it sank. Oil has already used the submarine’s robotic arms to
polluted hundreds of kilometers of the patch about 20 different leaks in the
Spanish coastline. Prestige’s hull. The challenges posed by
the leaks varied, so a number of different
repair techniques were used. One
solution involved placing metal plugs
over ruptures and securing these using
weighted bags. In another, a bag of metal
shot was inserted into a tube leaking oil.
Barnouin says the patches may last up to
7. 40 years, but admits they could Tenerife and Barbados. It has a diameter
deteriorate much more quickly. of 10,000 to 13,000 feet. The team will
Pumped up use a remote controlled underwater
vehicle to try and recover samples from
“It’s a step in the right direction,” says
what should be the Earth’s exposed
Simon Cripps, director of the World
mantle; mantle is the material that is
Wildlife Fund’s International Marine
found under the Earth’s crust but cannot
Programme, but even a tonne a day is a
be reached normally.
serious ecological problem, he says.
Cripps adds that the Spanish government Because of the extreme depth, a manned
should find a way to retrieve the submarine mission is not possible. As a
remaining oil from the prestige as result, the team will use an autonomous
quickly as possible. “It’s the only underwater vehicle that is essential a
solution,” he told New Scientist. remotely controlled robot with enough
Between 17,000 and 20,000 tonnes of oil on-board decision making to make the
is thought to have leaked from the tanker operator’s job easier. The robot will land
so far, leaving about 60,000 tonnes of oil at the bottom of the crater and drill into
still on board. Much of the leaked oil has the mantle in order to return rock
washed up on the north-west coast of samples back to the ship. In addition, the
Spain, severely damaging the local robot will use its on-board mapping
fishing industry and wildlife. Some oil instruments to create a 3D map of the
has reached the Atlantic coast of France. ocean’s floor.
The Spanish government is currently
considering a proposal by the Dutch
salvage.
Remote controlled robot
to help solve the
mystery of Earth’s
missing crust
A 12-member team of British scientists
are on the way to the middle of the
Atlantic Ocean in an effort to answer the
questions around Earth’s missing crust
deep in the bottom of the ocean.
According to CNN, the hole is about
16,400 feet under the surface of the
Atlantic and located half way between
8. AUVs in Navy Underwater satellites
Seventy-four percent of Persian Gulf and autonomous
waters are shallower than 180 feet. And robots help the hunt
in what the Navy terms very shallow
water – from about 40 feet to the 10-foot
for enemy
depths where waves begin to break – submarines
mines pose an especially acute threat.
There, where ships and manned subs
can’t venture, the Navy traditionally
relies on dolphins to find and mark
mines, and on human divers to set
charges nearby, then swim away before
they explode. The work is painstakingly
slow and dangerous. That’s why military
planners would love to send in a team of
AUVs instead. The AUVs in the Navy
Seals’ tests are programmed before
being dropped into the water. Each
vehicle dedicates itself to a discrete
portion of the harbor, covering it in a Additionally, the lethality of these
series of parallel runs -- a tactic called Submarines may sound like a bit of an
old school Hunt for Red October style
“mowing the grass.” Scanning 150 feet
threat, but Anti-Submarine Warfare
in each direction with sonar, the robot
planning is still vital.
subs note the location of all mine-like
objects. To keep their bearings, they
Diesel-electric submarines are a growing
continually send signals to two threat for four primary reasons. They can
transponders that the Seals have dropped be built a relatively low cost in
in the water at predetermined locations. comparison to traditional platforms and
(The subs are programmed to know have therefore proliferated in numbers-
where the transponders are, so by arguably in numbers that exceed our
assessing how long it takes for their maritime platforms.
signals to bounce back, they ascertain
their own location.) After a few hours, Diesel electric subs have also grown
when the robot subs have covered the while their acoustic signatures are lower
making them harder to detect.
entire harbor, they gather at an appointed
place to be retrieved.
9. SATELLITES IN THE OCEAN A typical military mission for an AUV is
- DASH to map an area to determine if there are
any mines, or to monitor a protected area
DARPA’s Distributed Agile Submarine (such as a harbor) for new unidentified
Hunting or DASH program will detect
objects. AUVs are also employed in anti-
and locate submarines over vast areas in
submarine warfare, to aid in the
both deep and shallow water.
detection of manned submarines.
Scientists use AUVs to study lakes, the
DASH is a sort of an underwater version
of a satellite capable of operating at ocean, and the ocean floor. A variety of
extreme depths in Open Ocean. Known sensors can be affixed to AUVs to
as “subullites,” these are being measure the concentration of various
developed for deployment on deep sea elements or compounds, the absorption
enemy sub stake outs. or reflection of light, and the presence of
microscopic life. Additionally, AUVs
The underwater satellites will be mobile, can be configured as tow-vehicles to
quiet and unmanned. deliver customized sensor packages to
specific locations.
Just like a satellite in the sky, it will have
a large field of view- but in this case of
the water overhead so that it can scan
upwards and from great depths detect the
quiet diesel electric subs.
To hunt submarines in the shallower
continental shelf waters, state of the art
mobile sensors will hunt from above
rather than from below the threat. For
this area, non-acoustic sensing will be
deployed.
Conclusion
AUVs have been used for a limited
number of tasks dictated by the
technology available. With the
development of more advanced
processing capabilities and high yield
power supplies, AUVs are now being
used for more and more tasks with roles
and missions constantly evolving.