Passive Underwater Fire Control Feasibility System (or Study) (PUFFS) is a passive sonar system for submarines. It was designated AN/BQG-4 and was primarily...

sugar-frosted puffed grain breakfast cereal Passive Underwater Fire Control Feasibility System, a US Navy submarine sonar system Douglas AC-47 Spooky (nickname "Puff...

frames 42 and 43) to accommodate the BQG-4 Passive Underwater Fire Control Feasibility System (PUFFS) passive ranging sonar installation, with three tall...

better electronic gear (including the AN/BQG-4 Passive Underwater Fire Control Feasibility System (PUFFS) passive sonar with three shark-fin domes added topside)...

submarine new and larger engines as well as the Passive Underwater Fire Control Feasibility System (PUFFS) passive sonar installation. Modernization was completed...

while towed arrays are passive. An example of a modern active-passive ship towed sonar is Sonar 2087 made by Thales Underwater Systems. Modern torpedoes are...

Sensor System (I-REMBASS) is a passive acoustic sensor, which, with other MASINT sensors, detects vehicles and personnel on a battlefield. Passive acoustic...

series Paschen–Back effect Pascual Jordan Pasotron Passive Underwater Fire Control Feasibility System Passive radiator Patch dynamics (physics) Path-ordering...

as the primary method of underwater detection of submarines. The most effective type has varied between active and passive, depending on the countermeasures...

machines in the AC system for its operation. A voltage sourced converter can therefore feed power to an AC network consisting only of passive loads, something...

"passive" remote sensing (when the reflection of sunlight is detected by the sensor). Remote sensing can be divided into two types of methods: Passive...

sonar, multi-function radar, illumination/fire control radar, long range radar and electronic scanning systems. Atmaca (SSM) RIM-156 SM-2 Block IV (SAM)...

both ambient pressure and controlled pressure single atmosphere systems. The major categories of ambient pressure underwater breathing apparatus are: Scuba...

meeting a congressional mandate for naval fire support. The ship is designed around its two Advanced Gun Systems (AGS), turrets with 920 round magazines...

adequate ventilation is not available or other engineering control systems are not feasible or inadequate. In the United Kingdom, an organization that...

BQG-4 Passive Underwater Fire Control Feasibility Study (PUFFS) sonar system, with three tall domes topside, was fitted. Additionally, fire control upgrades...

and surface-controlled grabbing devices. The system selected for a particular operation depends upon availability, operational feasibility and economics...

unexpected environmental conditions becoming lost or trapped underwater inability to control buoyancy and/or inability to apply thrust sufficiently to ascend...

the Latin word "concretus" (meaning compact or condensed), the perfect passive participle of "concrescere", from "con-" (together) and "crescere" (to...

the only feasible option, as the exterior is typically at a higher pressure than the interior, and external venting is not possible by passive means. These...

general and local ventilation systems. Controls change how the task is performed. Some of the basic work practice controls include: following the laid procedures...

natural "wicking" property that can draw water and nutrients in a passive hydroponic system. If too much water and not enough air surrounds the plants roots...

considered feasible if equipped with weapons and sensors already in service, with the fire-control, torpedo-launching and submarine-detection systems also found...

watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term “submarine” is...

technology (LO technology), is a sub-discipline of military tactics and passive and active electronic countermeasures, which covers a range of methods...

when needed. This modular payload system came to be known as "Standard Flex", or "StanFlex" for short. Feasibility studies during 1983 and 1984 led to...

BQG-4 Passive Underwater Fire Control Feasibility Study (PUFFS) sonar system, with its three tall domes topside, was fitted. Additionally, fire control upgrades...

combat system development program proceeded with far fewer problems, and took the tactical and fire control components from the CCS Mk2 system, and the...

the system can be designed to not reveal potentially sensitive details of the object design and composition. The Multi-Mode Passive Detection System (MMPDS)...

Divers face specific physical and health risks when they go underwater with scuba or other diving equipment, or use high pressure breathing gas. Some of...