Aerial Apparatus Fireground Operations

Session Reference: 1 Topic: Aerial Apparatus Fireground Operations Time Required: 3 References:    • Truck Company Fireground Operations, Second Edition, Chapters 2, 8, And 11    • Essentials Of Fire Fighting, Third...


            (7) Availability and combustibility of fuel

            (8) Size of fire force

            (9) Fire fighting equipment on hand

       c. Worst combination would be recent dry weather, strong winds blowing toward exposures, area

           of closely space frame buildings, severe fire difficult to reach, plenty of easily ignited materials

           located between fire building and exposures, limited personnel and apparatus response on first

           alarm, and poor water supply

       d. First alarm assignments should be reviewed periodically for fire force and equipment response

       e. Where exposure hazards great, number of companies responding on first alarm should be

            increased

  3. Exposure protection

      a. Choosing the stream

           (1) Fog streams more effective than solid streams for exposure protection

           (2) Solid streams should be used when distance, wind, or thermal updraft a factor

           (3) Greater intensity of fire, heavier the aerial exposure stream needed

            (4) If water supply a problem, smaller, adequately supplied, stream more effective than weak

                  stream from larger nozzle

         b. Directing the stream

             (1) Since water transparent, radiant heat passes through it

             (2) Stream must be directed onto surface of exposure in such way that it washes down side

             (3) If exposed building taller than fire building, most vulnerable area above level of fire - first

                   exposure stream should be directed just above most vulnerable area

             (4) Burning embers and ignited materials can be convected up to exposures

             (5) Aerial stream directed into fire and its smoke column can decrease exposure hazard

             (6) Exposure stream can be alternately directed onto exposure and fire

             (7) When exposure so long that one stream cannot protect it completely, attempt must be

                    made to position second stream

E. Elevated Handlines

  1. Operating from a platform

       a. Handline with nozzle should be tied to platform railing before platform raised - nozzle and one

           foot of hose should extend out in front of railing

       b. Do not raise platform until nozzle operator secured to railing with ladder belt

       c. If stream directed in through window, place basket so nozzle at center slightly below bottom

           part of window

       d. Once fire in area of window knocked down, basket can be moved above sill to allow horizontal

            penetration

        e. When fire thoroughly knocked down, handline can be advanced into building

  2. Operating from an aerial ladder

       a. Usually elevated handline directed through window

       b. If fire showing at window, ladder should be raised but not placed close to building

       c. Fire fighter operating nozzle should take line up ladder to proper position and tie to center of

          ladder

       d. Nozzle should be centered in window just below sill

       e. If no fire showing, place ladder at window before fire fighter takes line up ladder

       f. Fire fighter working on ladder must wear ladder belt

       g. Ladder operator must be careful not to activate the extension-retraction control when rotating

          ladder

       h. Elevated stream can be untied and move into building when fire at window is knocked down

       i. In some situations, handline operated from ladder while ladder pipe in operation above

NOTE: The instructor may want to demonstrate particular techniques with aerial units prior to the students practicing those techniques during practical application.