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Cobb Co. GA House Fire
A structure fire on 11-19-2007 did significant damage to a house in Acworth, Ga. Cobb Co. Fire & Emerg. Svc. Engines 11,24,18 and 8 handled along with Rescue 11, Truck 8, Air/Light 26 and (Batallion) Car 104
Photo courtesy of Capt. Keith Shoemacher, Atlanta Fire Dept. and published with his permission.
A structure fire on 11-19-2007 did significant damage to a house in Acworth, Ga. Cobb Co. Fire & Emerg. Svc. Engines 11,24,18 and 8 handled along with Rescue 11, Truck 8, Air/Light 26 and (Batallion) Car 104
Photo courtesy of Capt. Keith Shoemacher, Atlanta Fire Dept. and published with his permission.
Seems like a good illustration of the pumping power for someone not familiar with the equipment.
Added by Vince Conroy on 26 October 2008.
Added by Vince Conroy on 26 October 2008.
Vince, there is no doubt that is quite a volume of water being pumped, but would you know to where it is being directed? It appears to be right of the fire structure that is why I was wondering if it was to protect ajoining structures, ,
Added by Pavel on 26 October 2008.
Added by Pavel on 26 October 2008.
All US Class 1 pumpers are required to have a deck gun. The maximum flow can range from a low of 325 gpm to over 500 gpm. (1200 to 1900 liters)
They are used in many different situations of course, but the main purpose is often one of the following three:
1- A "tank dump" in the initial stages of a fire, to provide an attack while hydrant connections are being made and lines are being laid out. Depending on flow and tank size, this phase can last from one to three or four minutes.
2- Direct protracted external attack in the "surround and drown" role. The advantage is that one firefighter can deliver a large volume of water for a very long time if necessary, but its effectiveness does depend on pumper placement, so it is not always practical.
3- Protecting exposures. This can often be critical, and the first priority if the burning structure is well alight - especially in windy conditions. It is impossible to say if this is what is being pictured here, but it seems very likely.
Added by Rob Johnson on 05 September 2018.
They are used in many different situations of course, but the main purpose is often one of the following three:
1- A "tank dump" in the initial stages of a fire, to provide an attack while hydrant connections are being made and lines are being laid out. Depending on flow and tank size, this phase can last from one to three or four minutes.
2- Direct protracted external attack in the "surround and drown" role. The advantage is that one firefighter can deliver a large volume of water for a very long time if necessary, but its effectiveness does depend on pumper placement, so it is not always practical.
3- Protecting exposures. This can often be critical, and the first priority if the burning structure is well alight - especially in windy conditions. It is impossible to say if this is what is being pictured here, but it seems very likely.
Added by Rob Johnson on 05 September 2018.
Comment removed at request of Commentor
Comment removed at request of Commentor
Andy:
The designation is often intended to distinguish pumpers which meet NFPA specifications for structural pumpers as distinct from brush units, which are not required to have deck guns, although of course some do. CalFire has established the classes for brush pumpers, which have been adopted in many other states too.
So you will see Class 1 lettering on many pumpers which are not operated by ISO Class 1 fire departments too....
Cobb County is however one of the 178, or so they claim.
ISO ratings do influence fire insurance premiums for businesses and property owners, so cities try to obtain Class 1 status when they can, although sometimes the requirements can be a bit excessive.
Added by Rob Johnson on 07 September 2018.
The designation is often intended to distinguish pumpers which meet NFPA specifications for structural pumpers as distinct from brush units, which are not required to have deck guns, although of course some do. CalFire has established the classes for brush pumpers, which have been adopted in many other states too.
So you will see Class 1 lettering on many pumpers which are not operated by ISO Class 1 fire departments too....
Cobb County is however one of the 178, or so they claim.
ISO ratings do influence fire insurance premiums for businesses and property owners, so cities try to obtain Class 1 status when they can, although sometimes the requirements can be a bit excessive.
Added by Rob Johnson on 07 September 2018.
Pierce
Added by Pavel - Western Australia on 04 January 2008.