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Aquanox Manual.pdf

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same can be done with three torpedoes, four, etc.<br />

D PA : "Distributed Processor Architecture". Several processors connected by<br />

a data bus; can be operated together or separately.<br />

D S R V: Deep Submersible Rescue Vehicle - specially constructed rescue<br />

submarine.<br />

E L F : Extreme Low Frequency. Same as VLF below; a part of the frequency<br />

range of long waves. Slow, but ideal for underwater communications. 1 letter/30<br />

sec. VLF is faster.<br />

G P S : Global Positioning System. An NVSTAR type satellite locates the exact<br />

position. GNS: Global Navigation System: On-board computer keeps the ship on<br />

course with the help of GPS.<br />

H F : High Frequency. Short wave. Almost unusable below water.<br />

H UL L POPPING : Sound made by the hull’s expansion while surfacing.<br />

HYD RO PH ONE : Underwater directional microphone for the passive<br />

positioning of sound.<br />

K E E L : Lower edge of the boat. Iron ballast.<br />

K N O T S : Measure of speed in nautical miles per hour.<br />

L O FA R : Low Frequency Analyzing and Recording. A technology to represent<br />

tones of the lower frequency band on the screens of modern sonar devices.<br />

NAU TICAL MI LE: Approximately 1.8 kilometers<br />

N A X O S : Radar warning device.<br />

N E G AT IVE BO OST: Slight sinking position. Angle of attack 10-15<br />

degrees.<br />

O B A : Oxygen Breathing Apparatus. Portable system that chemically creates<br />

oxygen for approximately 30 minutes.<br />

R A D A R : Radio Detection and Ranging. Locating device using focused waves<br />

in the centimeter region. The waves are emitted from a sender and reflected by<br />

an object as with the SONAR. The echo is displayed on a screen.<br />

R A M : Radar Absorbing Material. Coating which absorbs, rather than reflects<br />

any radar signals (stealth technology).<br />

R E A R : Back part of the boat.<br />

SI LENT RUNN IN G: The ship runs with minimal sound to avoid being<br />

located, .e.g. when being pursued by another submarine vessel. Low speed, no<br />

unnecessary activities.<br />

S I N S : Ships Inertial Navigational System.<br />

Records all the ship’s movements and thus points to its current location<br />

(orientation system).<br />

S O N A R : Sound Navigation and Ranging. Underwater equivalent of RADAR.<br />

Reacts to sound signals and their echoes. A passive SONAR receives sound<br />

signals from the object, an active SONAR emits a "ping" and waits for its echo.<br />

S O S U S : Sound Surveillance System. A number of passive sonar probes,<br />

established by the NATO as an early warning system. Currently used for<br />

scientific purposes.<br />

TA SK FO RCE : Operational organization.<br />

TA SK GRO UP : A mission team (subdivision) of the Task Force.<br />

T D U : Trash Disposal Unit. Torpedo tube used to dispose of weighted down<br />

waste containers.<br />

TM A: "Target Motion Analysis" to find out the course and speed of the<br />

contact object. Battleships lay in a zigzag course while performing the analysis.<br />

TUB E DIVI NG: Slang expression for torpedo tube check-ups. (In<br />

AquaNox, robots or ROVs - Remotely Operated Vehicles - perform these!)<br />

V L F : Very Low Frequency. See ELF.<br />

Further technical terms from the underwater world can be found on the<br />

AquaNox website www.aquanox.de under the heading “Making of”.<br />

E N C Y C L O P A E D I A<br />

A Q U ATIC APE<br />

Scientists believe an aquatic hominid originated in the Danakil Mountains of<br />

eastern Ethiopia. About 3-5 million years ago, a seawater flood seems to have<br />

cut off a family of hominidae living there from the rest of East Africa. Evolution<br />

then slowly turned these hominidae into sea mammals.<br />

A R G U M E N T S : A layer of fat merged with the skin, extremely thick even<br />

on lean specimens (isolates body heat).<br />

Sweat and tears contain extraordinary amounts of salt. Excretion of excess salt.<br />

Breathing: Human beings are the only mammals (excepting sea mammals and<br />

seals) that can control breathing at will.<br />

The larynx is extraordinarily low in the throat, thus enabling quick inhalation.<br />

Diving reflex: Respiratory organs close automatically. Bronchial tubes and the<br />

bronchi contract.<br />

A R C H A E A<br />

Very old unicellular organisms without a cell nucleus. Two thirds of their genome<br />

is completely different from the genome of all other creatures on this planet.<br />

They are so-called extremophiles, creatures that only feel at ease in an extreme<br />

environment. Four billion years ago, they probably created the origin of all life<br />

near the hot hydrothermal vents.<br />

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