2 in 2 out

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Permalink Reply by Dave LeBlanc on May 21, 2009 at 2:43pm

Chris Truty said:

Here's an example of where the fire service has held on to something way too long, that is the interior attack and the "unprofessionalism" of an in-the-window knockdown. We spend way too much time trying to find our way to a room during an interior attack at the risk, often unnecessarily, of our own. There is no better way to help a victim (if there is one) than to put the fire out or at least knock it down AS QUICKLY as possible. Why? This allows for much more rapid entry into a much safer environment. I've seen firefighters take charged hose lines past vented windows and then take an additional 5 mins to find their way to the room where they were just at and the fire has now grown significantly (What do you think happened to the victim?). Interior combustible compositions have changed dramatically in the last 20 years and flammable and toxic atmospheres now exist way beyond the fire area. We can now put 200+gpm rapidly onto a fire, with preconnects if so desired, which will overwhelm most 1 or 2 room fires. No one is saying we have to use indirect attacks and upset thermal balances and everything else that goes along with saving a potential victim or use opposing streams, but putting water on the fire as rapidly as possible will do more than anything else to help all of us. RIT teams (2-in 2-out) must be a requirement but they're less important if the fire is in the process of being extinguished.

And were does the fire go?

I was taught attack from the unburned side, and push the fire out the burned side. Sticking a hoseline in a vented window will push fire into the rest of the building. It will also upset the thermal balance and send huge quantities of steam throughout the building.......

Do the best you can with what you have, but don't justify a wrong decision by saying it is an old tactic that needs to go away. Maybe you can't advance a line into the seat of the fire, or maybe there is no reason to. But you aren't helping a victim in another room by pushing heat, smoke and steam into their area.......

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Permalink Reply by Bryan Lafleur on May 22, 2009 at 6:12am

Chris, I wholeheartedly agree with you. I was also taught to ALWAYS attack from the unburned to the burned, and to NEVER stick a nozzle in a window if going offensive. When I came on shift there were some old guys who told me to the contrary. At that time I doubted them, but I have since learned that it is SOMETIMES ok to wring out a window, I always do it with a straight stream, and I don't see where it pushes any fire, and very little if any steam into other rooms. I have also learned that it is SOMETIMES better to not come from the unburned side when it requires long and/or twisting turning stretches. Again, I always use the straight stream and haven't seen where it pushes fire. To call either unprofessional is short sighted and hard headed. There is nothing unprofessional about being efficient.



Chris Truty said:

Here's an example of where the fire service has held on to something way too long, that is the interior attack and the "unprofessionalism" of an in-the-window knockdown. We spend way too much time trying to find our way to a room during an interior attack at the risk, often unnecessarily, of our own. There is no better way to help a victim (if there is one) than to put the fire out or at least knock it down AS QUICKLY as possible. Why? This allows for much more rapid entry into a much safer environment. I've seen firefighters take charged hose lines past vented windows and then take an additional 5 mins to find their way to the room where they were just at and the fire has now grown significantly (What do you think happened to the victim?). Interior combustible compositions have changed dramatically in the last 20 years and flammable and toxic atmospheres now exist way beyond the fire area. We can now put 200+gpm rapidly onto a fire, with preconnects if so desired, which will overwhelm most 1 or 2 room fires. No one is saying we have to use indirect attacks and upset thermal balances and everything else that goes along with saving a potential victim or use opposing streams, but putting water on the fire as rapidly as possible will do more than anything else to help all of us. RIT teams (2-in 2-out) must be a requirement but they're less important if the fire is in the process of being extinguished.

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Permalink Reply by Dave Tessier on May 22, 2009 at 11:09am

Eliminating the use of a window to during an offensive attack shouldn't be a rule of ops. It's an option if the conditions allow for it. Keep your options open.
I hear alot of guys saying an the indirect attack will automatically disrupt the thermal layers. Not true...if done correctly. Read some of Grimwood 's papers and some of the other research papers. Using a straight/solid stream will however result in disrupting thermal layers if not directed at the seat of the fire.
If you don't have enough manpower on scene to make entry (using 2in/2out) then I'd suggest you look at some options available and research their effectiveness. An exterior offensive attack using some of the researched tactics is one of them.
You could also consider making PPA your option....if you knew when your next in truck was coming. It would make your environment and the victim's much more safe if you absolutely couldn't wait till the next truck is due....and it can be done with 4 ff's safely.
We have to get away from "this is what I've been told" and start looking at some of the research thats being done out there to protect our own asses and assist us in protecting others.

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Permalink Reply by Tom Vogel on May 22, 2009 at 11:30am

A very interesting debate, with two very important components, safety and proper fire attack method. Following the OSHA standard, if your staffing is not sufficient to meet the regs, you really do not have any options, if as you state, there is clearly no life hazard.

The method for operating the nozzle in my opinion is the proper one for suppression, a straight or solid stream at the ceiling being rotated or moved side to side. As several have stated, pushing the fire is not the concern, but rather heat and toxic gases. The nozzle is rotated in this manner to help push heat and gases away from the hose team, if you are doing this from an outside position, the heat and gases will have nowhere to go but into the structure. The other question is how to get at any extension from this vantage point if it is outside of the reach of the stream?

In the initial post, the fire conditions described seemed indicative of a fire that is not fully developed, as it mentions breaking the window for the stream placement. Certainly there could be a good volume of fire, but not enough to cause the window to fail yet. One other possible consideration is while the line is being stretched, take the window and hit it with the can to keep it contained while getting the line charged and in position. This will also leave you with a ventilation point to push the heat and smoke out. You can knock down a good volume of fire with a can, with limited disturbance of the thermal balance.

Probably the most important thing is that if you have to operate in this manner, that all members are trained to be on the same page. Once sufficient manpower is on scene and an interior attack is initiated, all outside operations must cease. As was noted, having a fire pushed on you from an outside line is miserable experience. Members need to know that once firefighters are inside, all exterior lines need to stop operating. You need to find what works best for your Department, but training is key if this is how you will operate. A good resource to view is the Methods of Structure Fire Attack video by Andy Fredericks that Fire Engineering put out a few years ago. It is a great way to learn more about the different methods of attack and some of the misnomers about each. Operating from the exterior would be my last choice on a manageable fire, but as we are seeing like the recent fire in San Bernardino where the 3 man crew had no other choice due to Departmental rules, sometimes it may be unavoidable, but it definitely against good firefighting tactics.

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Permalink Reply by Larry Lasich on May 22, 2009 at 1:24pm

Adam Miceli said:

Larry Lasich said:

I'd like to see a breakdown on how meny times we go into marginal conditions for a search/rescue that result in people being removed that were still alive 1 month later and how meny resulted in dead or injured firefighters. I have a gut feel that, like ignition sources and exposures, we bring victims to the incident.

We did not start the fire, and there isn't anything that we can do to make it better. If we do everything right and we are very lucky, we can only keep it from getting worse.

Terrorists like to kill first responders. They have a reason to. If we aren't there, everyone dies, every time.

Larry, one must also ask, how often a marginal attack or aggressive search reveals unexpected occupants? While we struggle to reduce all LODDs how many of us die as a result of over aggressive tactics for the situation vs. numerous other factors? I think we can all agree that a measured risk assessment is called for in every incident regardless of victims, construction and fire. Fires are extremely dynamic events that we cannot know all the variables to before we act.

On the terrorist thing? How many of our brothers or sisters have been injured or killed in an attack directly targeting them? It's more hype. We have to do our jobs and stop worrying about the things that don't factor in much and focus on the key issues like Physical Fitness and driving safer.

When I qualified the question by saying "still alive after a month" I want to know if the unexpected victim has 100 percent CO saturation and terminal thermal insult to their airway. You know that we grab people that are called at the scene or when they reach a hospital.

It is the job of the Crew leaders, Company Officers and IC to evaluate building and fire conditions while they are doing their 360 and during interior operations. If you are watching while a smoked over second story window is being forced and you start seeing flame rolling across the ceiling, is anything alive in that room. If the door to the room is open, are the conditions the same on the whole floor. If the room is pre-flash over, why would you send your guys into it?

Attic truss w/ metal gussets? 10 min of impingement. OSB joist? 5 min of impingement. Room and contents on the windward side w/ 20-30 mph winds? 1000 deg wall of flame moving through the house if the windows break or the doors fail. I'm just saying that we need to look at the conditions, understand what it's telling us and make our stratagy and tactics fit the conditions.

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Permalink Reply by David Polikoff on May 25, 2009 at 8:30am

Dave LeBlanc said:

I think that I have some concern with the notion that 2 in and 2 out is our saving grace. The standard was not originally designed for the Fire Service, and in my mind leaves us in a position of doing more work with less firefighters. At the same time it provides us with a false sense of security, as we are being lead to believe that 2 firefighters outside are enough to rescue 2 firefighters inside.

Now before you tar and feather me......I am not saying we should throw the baby out with the bath water. However I am not sure that 2 in and 2 out provides us with what we need when it comes to deciding when and how to attack a fire in a building.

Look into Phoenix's studies after the death of Brett Tarver. Look at how many firefighters it took to locate a mising firefighter, let alone perform the rescue.

Do you think it is possible that 4 people on the hoseline, stretching and venting may produce a quicker, safer, better result?

Amen, I have been saying the same thing since its inception. It allows the fire to burn longer while the firefighters wait on the outside for the 2 out to arrive. Keep the 2 in 2 out for what it was meant to be; confined space rescue.

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