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  2. Frag Kit 6 - Wikipedia

    en.wikipedia.org/wiki/Frag_kit_6

    Frag Kit 6 adds about 1,000 lb (450 kg) of extra weight (100 lb per sq ft) and 12 inches (300 mm) of width on each side of the vehicle (2 feet overall) over the previous Frag Kit 5 Humvee armor. The doors are so heavy, troops may need a mechanical assist device to open and close them and so wide drivers may require built-in visual references so ...

  3. Plastic explosive - Wikipedia

    en.wikipedia.org/wiki/Plastic_explosive

    A C-4 charge packed onto a marine anchor chain. Plastic explosives are especially suited for explosive demolition of obstacles and fortifications by combat engineers as they can be easily formed into ideal shapes for cutting structural members and have a high enough velocity of detonation and density for metal cutting work.

  4. Blast gate - Wikipedia

    en.wikipedia.org/wiki/Blast_gate

    A blast gate is a gate valve used to focus a dust collection system's vacuum pressure for maximum dust (or other material) extraction at the desired location. Blast gates are positioned near individual pieces of machinery and operate by being closed by default, blocking air flow.

  5. Gate valve - Wikipedia

    en.wikipedia.org/wiki/Gate_valve

    Gate valves may have flanged ends drilled according to pipeline-compatible flange dimensional standards. Gate valves are typically constructed from cast iron, cast carbon steel, ductile iron, gunmetal, stainless steel, alloy steels, and forged steels. All-metal gate valves are used in ultra-high vacuum chambers to isolate regions of the chamber ...

  6. Bremer wall - Wikipedia

    en.wikipedia.org/wiki/Bremer_wall

    A Bremer wall, or T-wall, is a twelve-foot-tall (3.66 m) portable, steel-reinforced concrete blast wall of the type used for blast protection throughout Iraq and Afghanistan. The Bremer barrier resembles the smaller 3-foot-tall (0.91 m) Jersey barrier, which has been used widely for vehicle traffic control on coalition military bases in Iraq ...

  7. Blast damper - Wikipedia

    en.wikipedia.org/wiki/Blast_damper

    Blast dampers usually employ some type of blade held open with tension from a spring. The damper blades close automatically when pressure overcomes the resistance offered by the spring. Various models differ in the amount of blast protection (e.g. 1 bar/14.5 psi or lower amounts of protection) and whether they stay closed after the blast or ...

  8. Blast shelter - Wikipedia

    en.wikipedia.org/wiki/Blast_shelter

    A blast shelter is a place where people can go to protect themselves from blasts and explosions, like those from bombs, or in hazardous worksites, ...

  9. Backblast area - Wikipedia

    en.wikipedia.org/wiki/Backblast_area

    The backblast area is a cone-shaped area behind a rocket launcher, rocket-assisted takeoff unit or recoilless rifle, where hot gases are expelled when the rocket or rifle is discharged. [1]

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