Ladders 2- Mo- Aerial Ladders Flashcards
Who shall assist Chauffeur of Aerial with proper placement of apparatus?
OV
-while operating at fire/emergency the apparatus shall NOT be backed up unless the chauffeur has the assistance of at least one guide person
Place apparatus how many feet from building?
25 to 35 feet
- city sidewalk is 13 feet from building line to curb
- 35 feet from curb to curb
- place apparatus in CENTER of street
- line up center of turntable with window, using sidewalk makings
Officer or OV can assist with the initial placement of apparatus
2 methods use to attain accuracy in lining up the ladder with a window are?
a. experienced member- sighting along ladder rail of TOP SECTION
B. less experienced member-sighting along the UNDERSIDE of the ladder beam on top sliding section
Recommended distance from tip of objective?
2” to 6”
- for RESCUE- use 2” position
- at extreme angle (7 story building)- allow ladder to BARELY TOUCH the building
Positioning ladder at a window?
ladder tip should be less than 6” over the window sill
-placement must allow for unimpeded access/egress from window
When only one aerial ladder can be used and endangered occupants are not in vertical alignment, place the turntable ____between locations?
MIDWAY
-remove most seriously exposed first
Placing Aerial alongside fire escape?
tip 2” away from face of building and about 1 to 3 feet above balcony railing
-whenever possible, place ladder on least exposed side
Narrow Frontage building?
30 feet or less in width
-positon turntable in the center of the building
Large Frontage building?
OVER 30 feet
-no condition or victims showing- place center of the turntable approx. 15 feet from the side wall passed on your approach
this allows for:
- easy forward movement for less experienced member (tiller FF should leaves wheels lined up with tractor)
- more clear frontage for BACKSTRETCH
- backing up would be impractical/time consuming
Placement of Aerial is dependent on 4 conditions?
- immediate rescue
- size of the frontage of building to be covered in case of future need(NOT HEIGHT)
- smoke, heat, or fire causing an exposure that would endanger a victim, a member or the LADDER
- area or street conditions that might hamper optimum positioning
Chocks for Aerial ladder?
one set on EACH side of apparatus
When fire covers extensive floor area and more than one apparatus is needed and contact cannot be made with 2nd ladder company…
be cognizant of response patter of 2nd truck
A. 2nd ladder response brings them into street behind you, proceed to FAR end of building
B. 2nd ladder will respond from opposite end, position near end of fire building
Venting with Aerial Ladder…
- aim at upper window panels, just above sash, and extend WITHOUT t hitting the sides or tops of window frames
- only SLIGHT EXTENSION through window/this will avoid striking ceiling
- NOW, LOWERING ladder usually cracks horizontal sash allowing for complete vent—if angle becomes extreme, just LOWER ladder inside so BEAM breaks window
OV (tiller FF) sets chocks and stabilizers…alternative method, when staffing is available is?
one member assigned to INBOARD side….
OV TAKES OUTBOARD side, thus, OV can observe building
While Chauffeur is operating ladder (victim removal)…
OV must observe building continuously, for other trapped victims
Climbing ladder while extending or retracting is …
PROHIBITED
-IN EXTREME emergency (serious exposure to high heat or flame will movement of the ladder with the FF AND VICTIM on it be justified
OV, ascends later, followed by Chauffeur…OV will?
climb in window, assist victim out feet first to the LCC…then CLOSE DOOR to fire area and search
Descend with ambulatory victim?
place yourself ONE RUNG Below the rung the victim is standing on…descend in UNISON…keep victim between YOU AND LADDER AT ALL TIME and maintain PHYSICAL CONTACT with victim
- steeper angles- have victim grasp rungs
- talk to victim/reassure/have them look straight/up
- those not familiar with ladders have tendency to flatten themselves against rungs, this will make your position easier