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The trench effect is a combination of circumstances that can rush a fire up an inclined surface. It depends on two well-understood but separate ideas: the Coandă effect from fluid dynamics and the flashover concept from fire dynamics: The Coandă effect is the tendency of a fast stream of gases to bend towards, and adhere to, nearby surfaces.
The 30-degree angle of the escalators was discovered to be crucial to the incident, and the large number of casualties in the fire was an indirect consequence of a fluid flow phenomenon that was later named the trench effect, a phenomenon completely unknown before the fire. The conclusion was that this newly discovered trench effect had caused ...
Suppressive fire can be delivered by any weapon or group of weapons capable of delivering the required intensity for the required period of suppression. Suppressive fire may be direct or indirect. However, suppressive fire capabilities of different weapons vary, most notably in the size of the area of their suppressive effect.
Enfilade fire—gunfire directed against an enfiladed formation or position—is also commonly known as "flanking fire". [1] Raking fire is the equivalent term in naval warfare. Strafing, firing on targets from a flying platform, is often done with enfilade fire. It is a very advantageous, and much sought for, position for the attacking force.
Mount Hood ' s former position was revealed by a trench in the ocean floor 1,000 feet (300 m) long, 200 feet (61 m) wide, and 30 to 40 feet (9.1 to 12.2 m) deep. The largest remaining piece of the hull was found in the trench and measured 16 by 10 feet (4.9 by 3.0 m). All 296 men aboard the ship were killed.
In British and Canadian military argot it equates to a range of terms including slit trench, or fire trench (a trench deep enough for a soldier to stand in), a sangar (sandbagged fire position above ground) or shell scrape (a shallow depression that affords protection in the prone position), or simply—but less accurately—as a "trench".
With Meghann Fahy, Chase Sui Wonders, and ultimate cool girl Sky Ferreira in attendance and Smashing Pumpkins on the soundtrack, Holstein prepared to do what she does best: set fire to our New ...
Life-net used in Ringtheater fire in Vienna December 8, 1881. On August 19, 1902, the New York City Fire Department conducted its first real-life rescue with the Browder life net. During rescue operations at a tenement fire that killed five people, a baby was dropped from a fourth-floor fire escape into a life net, and survived uninjured. [5]