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When I look back on some of the events that occurred in the fire service during 2017, my mind immediately goes to the countless number of devastating fires that have occurred in large wood-frame buildings under construction, or as Fire Engineering Technical Editor Glenn Corbett likes to call them, “toothpick towers.” Buildings under construction are some of the most challenging fires we face and, depending on the amount of passive and active fire protection that has been installed or is operational, it can be a losing battle from the start. In this article, we are going to look at one aspect of...

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Editor Note: The mechanical advantage of a Halligan has been a recent topic on some training forums. A friend of mine decided to sit down and put on paper what many of us explain when teaching the use of the Halligan. Before you read this I would like to start by saying this is an article for firefighters that like to keep working towards a better understanding of what they are doing and why they are doing it. Does a firefighter need to know the complete break down of mathematics regarding the leverage of the Halligan to force a door correctly?...

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This video describes fire behavior in ventilation limited structures using live fire demonstrations, computer fire modeling (Fire Dynamics Simulator) and ATF field testing. The vast majority of fires encountered by fire investigators and firefighters are ventilation limited, meaning that the size and location of flames are regulated by sources of ventilation.  

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This is one of those topics that usually generates many different opinions due to personal experiences. Anyone that has been around small engines, or enjoys working on 2-stroke motors will usually be somewhere along the lines of what we are going to suggest. With that said if you have different ideas or another way that is tried and true for you, then you are welcome to throw it in here for everyone to discuss. Troubleshooting a flooded saw in the field could make or break whatever task you have been assigned to. We all know that if the saws are not checked,...

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The UL Firefighter Safety Research Institute is currently conducting a 3-year project on the impact of fire attack utilizing interior and exterior fire streams on firefighter safety and occupant survival. The project includes several sets of experiments to examine different principals of fire attack. Air flow experiments were conducted to determine how air moves within a structure dependent on the type of hose stream chosen and how it is applied given various ventilation openings and interior versus exterior deployment. Water flow experiments were conducted to determine water mapping within compartments based on the type of tactic chosen utilizing an interior...

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