Truck Company

Ventilation increases survival chances

I read with interest the letter from George Cowan (March 1997) in which he states that "Class A foam has changed the need for or possibly even the priority of ventilation." The Class A foam application described in his letter is essentially an indirect fog attack, which experience has shown should not be used where victims may be trapped or the spread of fire to uninvolved areas cannot be contained. Ventilation is still required in an occupied structure to reduce temperatures and remove smoke an

CLAYMONT (DE) COLLAPSE RESCUE TRUCK

BY JOHN J. O`CONNELL, FIREFIGHTER, CITY OF NEW YORK (NY) FIRE DEPARTMENT; AND MIKE MOORE, TRAINING OFFICER, CLAYMONT (DE) FIRE COMPANY

BUSINESS CLASS ALL-WHEEL-DRIVE TRUCKS

Freightliner Corporation: Factory all-wheel drive includes Marmon-Herrington 12,000- and 16,000-lb. front-drive axle ratings. 16,000-lb. axle has planetary hub-reduction, and provides three inches of additional ground clearance compared with standard single-reduction front-drive axles. Available in 4 x 4 and 6 x 6 configurations. (503) 735-8535.

ULTRA-CONTAINMENT POOLS

UltraTech International, Inc.: Provides secondary containment for drums, tanks, equipment, and vehicles. Sidewalls designed to collapse in either direction and spring back to vertical position. Allows users to roll drums or drive trucks over sidewalls. Containment pools require no setup or assembly. Available in standard sizes from four feet 3 six feet 3 one foot to 15 feet 3 66 feet 3 one foot. Chemical-resistant. (800) 353-1611.

FIRST-DUE

You are the officer of the first-arriving engine company for this fire. As you proceed down the street toward the address, smoke is visible rising into the afternoon sky. The chief reports that he will be delayed, so the fire is yours to run. The initial response to this incident is two engines and one truck company, with a total of 12 firefighters.

VENTING WINDOWS

One of the major fireground functions of a truck company is to ventilate the fire building. Window ventilation, also referred to as horizontal ventilation, provides generally the largest and most direct ventilation of the fire area. At structural fires, vertical ventilation--opening skylights, bulkheads, and scuttles--should be undertaken before horizontal ventilation.

TEMPEST CONTROLLED AIR-STREAMS positive-pressure ventilation blowers have been certified under the

TEMPEST CONTROLLED AIR-STREAMS` positive-pressure ventilation blowers have been certified under the new Air Movement Control Association Inter-national (AMCA) Standard 240. The new testing method allows testing of any blower, shrouded or caged.

HAZ-MAT RESPONDS TO LEAKING BATTERY ACID

Recently, the City of New York (NY) Fire Department responded to a report of a truck fire in an industrial area in the East New York section of Brooklyn. Fire companies in this area are among the busiest in the city, with most responding to more than 5,000 alarms a year. Due to the large volume of commercial traffic in this area, a truck fire report is a common occurrence. On arrival, however, it was immediately obvious to the responding units that this was not going to be any routine operati

THIS TIME, GET THE ROOF!

Last month, we left you, the member of the truck company assigned to vertical ventilation, at the roof of a fire building where the fire was a floor below the top floor. Remember that ventilation tactics for a top- floor fire differ from those for a fire that is not under the roof! But that should be evident in our discussions of this topic in past issues.

T-3000 ARFF VEHICLE

Oshkosh Truck Corporation: 3,000-gallon water tank capacity, 420-gallon foam tank capacity. Around-the-pump foam proportioning system, preset to three or six percent. Roof turret is nonaspirating and manually controlled from inside cab, with 600- to 1,200-gpm discharge rate. (414) 235-9150.