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  2. Anti-personnel obstacle breaching system - Wikipedia

    en.wikipedia.org/wiki/Anti-Personnel_Obstacle...

    The anti-personnel obstacle breaching system (APOBS) is an explosive line charge system that allows safe breaching through complex antipersonnel obstacles, particularly fields of land mines. The APOBS is a joint DOD program for the U.S. Army and the United States Marine Corps .

  3. Obstacle Collision Avoidance System - Wikipedia

    en.wikipedia.org/wiki/Obstacle_Collision...

    The Obstacle Collision Avoidance System (OCAS) is designed to alert pilots if their aircraft is in immediate danger of flying into an obstacle. OCAS uses a low power ground-based radar to provide detection and tracking of an aircraft's proximity to an obstacle such as high buildings , power line crossings, telecom towers or wind turbines .

  4. Aviation obstruction lighting - Wikipedia

    en.wikipedia.org/wiki/Aviation_obstruction_lighting

    Aircraft warning lights at the Mannheim telecommunications tower, in the background the bright torchlight of a steam cracker, in the distance warning lights from wind turbines Structure using a white strobe Structure using a Red/White Strobe Closeup of an aircraft warning light on top of a highrise in Changzhou, China Closeup of an aircraft warning light on top a factory facilities Structure ...

  5. Ground proximity warning system - Wikipedia

    en.wikipedia.org/wiki/Ground_proximity_warning...

    A ground proximity warning system (GPWS) is a system designed to alert pilots if their aircraft is in immediate danger of flying into the ground or an obstacle. The United States Federal Aviation Administration (FAA) defines GPWS as a type of terrain awareness and warning system (TAWS). [ 1 ]

  6. Demining - Wikipedia

    en.wikipedia.org/wiki/Demining

    Deminers clear an area of vegetation and then divide it into lanes. A deminer advances along a lane, swinging a metal detector close to the ground. When metal is detected, the deminer prods the object with a stick or stainless steel probe to determine whether it is a mine. If a mine is found, it must be deactivated. [35]

  7. Wire obstacle - Wikipedia

    en.wikipedia.org/wiki/Wire_obstacle

    The effectiveness of any wire obstacle is greatly increased by planting anti-tank and blast antipersonnel mines in and around it. Additionally, connecting bounding anti-personnel mines (e.g. the PROM-1) to the obstacle with tripwires has the effect of booby-trapping the obstacle itself, hindering attempts to clear it.

  8. Anti-collision light - Wikipedia

    en.wikipedia.org/wiki/Anti-collision_light

    Detailed view of a Beacon light on a Tu-154. Beacon lights are flashing red lights fitted on the top and bottom fuselage of an aircraft usually on larger passenger aircraft. Their purpose is to alert ground crew and other aircraft that an engine is starting up, running or shutting down, or that the aircraft is about to start moving.

  9. Bangalore torpedo - Wikipedia

    en.wikipedia.org/wiki/Bangalore_torpedo

    The U.S. Anti-Personnel Obstacle Breaching System (APOBS) is being brought into service as a replacement to the Bangalore for path-clearing due to its ease of use, effectiveness, and flexibility – it can clear a path several times longer than the Bangalore torpedo. [citation needed]