Engine Ops_Hose Line Deployment3.pdf

OVERVIEW This section will demonstrate a few different techniques that can be used to deploy a modified minuteman load Choosing the correct technique when deploying the bundle is key to setting the hose line up in the best possible orientation and minimizing the amount of time it takes to put water...

OVERVIEW This section will demonstrate a few different techniques that can be used to deploy a modified minuteman load Choosing the correct technique when deploying the bundle is key to setting the hose line up in the best possible orientation and minimizing the amount of time it takes to put water on the fire Firefighters must remember that no matter what technique is used, they must fully commit to that technique. This will be explained in further detail below. Being indecisive can result in messy hose deployment and untimely delays Ensure that doorframe when making entry into the structure Regardless of the deployment, it is important to remember to split the door as outlined in the Splitting the Door section of this manual CONTENTS Back Stretch Forward Stretch Split Stretch Second Edition 01/31/22 59 BACK STRETCH Back stretching is accomplished by placing the bundle down, inline, around the point of entry to the structure. The crews will then pull the midpoints of the hose bundles backward away from the structure. These midpoints are marked by the two loops built into the rear of bundle. The main benefit of utilizing the back stretch is that it allows crews to deploy the bundle quickly and efficiently in areas where walking the hose into place with a forward stretch may be difficult, such as the side entry door in-between two houses that are close together. One main drawback of the back stretch is that crews will have to backtrack their steps. For example, they will have to walk up to the drop point, place the bundle down, walk back away from the structure to flake out the bundle, then walk back up to the nozzle and coupling at the entry point. Because of this, a forward stretch is usually preferred in cases where it is possible to do so. Second Edition 01/31/22 Click here to view Vector Solutions video on Performing a Back Stretch 60 FORWARD STRETCH Forward stretching is accomplished by placing the bundle down, inline, at a point away from the structure, picking up the nozzle and the forward to the fire building. There are two main benefits to forward stretching. The first is that crews minimize wasted effort; they deploy the bundle and walk toward the structure where they can then mask up and call for water. There is no need to retrace steps and waste valuable time. The second is that as long as the hose bundle is not placed too close to the structure and has enough room to flake out appropriately, the hose will always follow you. For example, if the bundle is dropped a little too far away, the firefighter can just pull the hoseline into place without having to backtrack. The key to this is fully committing to the forward stretch. It is better to place the bundle a little too far away and walk the hose forward into place, as opposed to placing the bundle too close to the structure. If the bundle is placed too close to the structure on a forward stretch, the firefighter will then have to backtrack and stretch the remaining hose backward since it did not have room to deploy out fully. Second Edition 01/31/22 Click here to view Vector Solutions video on Performing a Forward Stretch 61 SPLIT STRETCH Split stretching is accomplished when the bundle sections of hose are pulled in different directions to flake out the hose line in a restricted area. The main benefit of this split stretch is its application in tight urban environments and hotel/motel style residences with a narrow common access walkway. When split stretching, it is crucial to remember the orientation of the nozzle and first coupling in relation to the door. The nozzle should be in line with the desired entrance path, while the second half of the bundle will most likely be placed in the opposite orientation. By keeping the nozzle and the first coupling in line with the target, inline for advancement. Factors such as the fire location, home layout, and door hinge orientation will help dictate which half of the door to use for the nozzle and first coupling side. To complete a split stretch, the bundle is laid on the ground in line with the target section of hose, is taken back one direction while the second rear facing loop is taken in another direction to use up the extra hose in a small space. The same Second Edition 01/31/22 Click here to view Vector Solutions video on Performing a Split Stretch 62 OVERVIEW Just because CFD operates with pre-connected handlines does not mean that we should not be estimating the hose stretch on every fire One of the biggest detriments to hose advancement is too much hose in the front yard Use the formula below to estimate how much hose is needed to cover the entire structure Remaining hose can be used up by pulling the engine past the structure, allowing for easy ladder access in front of the home and an open working space to flake out attack lines Click here to view Vector Solutions video on Estimating the Stretch EMS runs present a fantastic opportunity to practice our stretch estimation. Ask your crew what they think you will need. Have them run through the exercise and compare results. When estimating the size of a structure, remember that we are not framing a house. Rough numbers are just fine. If in doubt, overestimate rather then cut it short. Keep in mind that a large number of the houses in your running district will have similar lot layouts. Having a basic knowledge of your running district can help you preplan your stretch before you even arrive on scene. section. It does not matter if it is a basement or second floor. Remember the remaining hose is used for the engine to properly pull past the house and is used up in the street. In this example, to pull past the house and manage obstacles. Second Edition 01/31/22 63 GOALS Understand how and where to split cars, with the goal of getting 100 of usable hose on the fire side of the cars along the street This is a great example of how a modified minute man can be beneficial depending on the district layout and the setback to the structure STEPS TO ACCOMPLISH Start by pulling the stack closest to the fire The shoulder load goes wide from the cars The loop should be pulled to the entrance of the location where the cars will be split Shoulder load will rotate 180° (should always turn into the shoulder load to prevent a possible kink from forming) Retrace steps until at a 90° angle from the entrance where the cars will be split Carry the shoulder load between the cars to the fire side Once the shoulder load is through the cars, the loop should be pulled tight to stretch the excess line and move the excess hose out of the street o This will help make sure the excess hose is not caught on the car tires The shoulder bundle can now be deployed and set up for a successful attack Click here to view Vector Solutions video on Splitting Cars For a two-firefighter deployment method, the pump operator pulls the loop section, and the nozzle firefighter pulls the shoulder bundle. Start by pulling whichever section is closest to the building. In this example, it is the loop. This causes the cross over to occur at the tailboard and not closer to the house. The driver pulls the loop to the back tire of the first target car the crew is attempting to split. The bundle is then pulled until it is at a 90° angle to the back tire of the second target car the crew is attempting to split. Second Edition 01/31/22 64 When the nozzle firefighter reaches the back tire of the second car, he rotates away from the target and back toward the engine. The nozzle firefighter then retraces his steps until he reaches the opening between the two cars; he then proceeds to walk between them in a straight line. The driver with the loop section is still waiting at the back tire of the first car. Once the nozzle firefighter walks between the cars, the driver continues to pull the loop section out while staying tight to the cars. The driver pulls until the section is tight and completely out of the hose bed. Second Edition 01/31/22 65 The driver then takes the tight looped section and places it between the two cars. By doing this, the crew has now placed all its workable hose on the fire side of the vehicles and maximized the working length of hose. The pump operator returns to the pump panel to charge the line. The nozzle firefighter bundle on the ground and The nozzle firefighter takes the nozzle and the coupling to the door and prepares to make entry as shown in the photo below. Second Edition 01/31/22 66 The graphics shown below illustrate the example discussed on the previous pages. The loop is pulled by the driver to the back tire of the first target car the crew is attempting to split. The bundle is then pulled past the chosen opening until it is at a 90° angle to the back tire of the second target car the crew is attempting to split. When the nozzle firefighter reaches the back tire of the second car, he rotates away from the target and moves back toward the engine. Second Edition 01/31/22 67 The nozzle firefighter retraces his steps until he reaches the opening between the two cars; he then proceeds to walk in a straight line between the cars. Note: The driver is still waiting at the back tire of the first car with the loop section. Once the bundle is carried through by the nozzle firefighter, the driver operator will then continue to pull the loop until it is tight. After all the hose is clear of the bed, the driver then places the loop section on the other side of the cars. Second Edition 01/31/22 68