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In the early 1970s, National Foam, Inc. invented alcohol-resistant AFFF technology. AR-AFFF is a synthetic foam developed for both hydrocarbon and polar-solvent materials. Polar solvents are combustible liquids that destroy conventional fire-fighting foam.
1967 In the wake of the 1967 USS Forrestal fire, which happened off the coast of north Vietnam—"one of the worst disasters in U.S. naval history"—in which 134 people were killed and the U.S. Navy aircraft carrier was almost destroyed, the US Navy began to make it mandatory for its vessels to carry Aqueous Film Forming Foams (AFFF) on board ...
AFFF was developed in the 1960s under Project Light Water in a joint venture between 3M and the U.S. Navy. AFFF forms a film that floats out before the foam blanket, sealing the surface and smothering the fire by excluding oxygen. AFFF is widely used for ARFF firefighting at airports, often in conjunction with purple-K dry chemical.
Airport crash tenders offer relatively good acceleration for their size and weight, are able to negotiate rough terrain outside the airport area, carry large capacities of water and fire fighting foam, are fitted with powerful high-capacity pumps and water/foam cannons, and are capable of delivering firefighting media over long distances.
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GE-Aviation acquires Smiths Aerospace for £2.4 billion 2007 GE Oil & Gas acquires Vetco Gray for US$1.9 billion. [19] [20] 2007 GE Plastics is sold to SABIC for US$11.6 billion. [21] 2008 GE Oil & Gas acquires Hydril Pressure & Control for US$1.12 billion from Tenaris, who retains possession of Hydril Premium Connections. [22] [23] 2008
The unit is then filled with 1.5 US gallons (5.7 L) of water and class A foam, AFFF, FFFP or commercial detergent is added to the water in a 1% ratio for class A fires and a 3%-6% ratio for class B fires. Typically, the tip of the smooth-bore application nozzle is then cut off to allow the foam to properly expand.
National Geographic (formerly The National Geographic Magazine, [3] sometimes branded as Nat Geo [4]) is an American monthly magazine published by National Geographic Partners. [5] The magazine was founded in 1888 as a scholarly journal, nine months after the establishment of the society, but is now a popular magazine.