TB 151 - Progressive Hose Lay and Smokey Pack Flashcards
The progressive hose lay is the METHOD in which the desired TECHNIQUE to suppress a brush or grass fire in the Wildland/Urban Interface is accomplished.
The technique to suppress brush/grass fires involves:
COMPLETE containment and control and mop up of the fire through PERIMETER CONTROL
What two LAFD methods are used for deploying brush hose?
-Simple Hose Lay
-Progressive Hose Lay
The SIMPLE Hose Lay is a CONTINUOUS line being advanced around the fire with NO JUNCTIONS in between.
Advantages and disadvantages:
Advantages:
-MINIMAL FRICTION LOSS due to minimal fittings
Disadvantages:
-to extend with additional hose, water flow must be stopped
-no safety line if flare up occurs behind nozzleman
-difficult to use in mop-up due to length of hose lay
_______ and _______ remain the standard method for advancing hose in the Simple Hose Lay.
-Wet Line/Dry Line
-A Continuous Line
Which method of deploying brush hose is very effective for SMALL FIRES in grass and light brush?
-Simple Hose Lay
(1” or 1½” double jacketed attack lines may be used)
A Progressive Hose Lay is a hose lay that starts from the supply source and PROGRESSES along the perimeter of the fire. It uses a continuous application of water while extending the lay and allows for a series of lateral junctions at _____ ft intervals
100 ft
Progressive Hose Lay:
The main line being “progressively” extended around the entire perimeter of the fire is referred to as the ______.
Trunk line
Progressive Hose Lay:
- Each junction will have a 1” line with a 1” nozzle attached and be connected to a 1½” gated wye through a 1½” to 1” reducer, referred to as a ________.
- What type of 1” nozzle (GPM) is attached?
- LATERAL
- 10/40 Dual Gallonage 1” nozzle
Progressive Hose Lay advantages and disadvantages:
Advantages:
-continuous water
-safer for direct attack due to laterals for flare ups
-1” attack line increases speed and decreases work load
-easier for steeper topography
-multiple attack lines on spot fires
-efficient in mop-up
Disadvantage:
-higher FRICTION LOSS due to fittings (5-10psi each)
What method of deploying brush hose is preferred to support hand crews constructing line?
Progressive Hose Lay
Policy when using a Progressive Hose Lay to provide for perimeter control:
Companies shall utilize a minimum of 1½” hose line for the trunk line and a 1” hose line for the _____ and ______ lines.
attack and lateral lines
Each drop of a Progressive Hose Lay shall consist of the following:
•100’ 1½” Single Jacket Hose (Minimum size for the trunk line)
•100’ 1” Single Jacket Hose (Attack and lateral line)
•1½” Gated Wye with one 1½” to 1” Reducer
•1” Nozzle (10/40 Dual Gallonage)
•(2) Rubber Bands OR ladder straps to secure gates.
A Company given the task of establishing a progressive hose lay is expected to, at a MINIMUM, be able to put in how many drops?
3 drops
The ______ Pack Lightweight Hose System is a pre-assembled pack of single jacket lightweight hose, which allows rapid deployment of packs and extension of line with an uninterrupted supply of water.
Smokey Pack
A company compliment of Smokey Packs will consist of 4 complete packs and one Starter Roll.
Each Smokey Pack weighs approximately 26 lbs. and shall contain the following:
(1) - 100’ section of 1” single jacket lightweight hose
(1) - 100’ section of 1½” single jacket lightweight hose
(1) - 1½” lightweight gated wye
(1) - 1½” to 1” reducer
(2) - 1” Forestry adapter (NST to NPT and NPT to NST) white for identification
(1) - 1” nozzle (10/40 Dual Gallonage)
(1) - 1½” nozzle (18/80 Dual Gallonage, 1 Per Company)
(1) - Backpack
(2) - Rubber bands
Smokey Pack Assembly:
“24 inches male back from female coupling”
“Secure hose every 8-10 ft”
Smokey Pack Starter Roll Assembly:
24” to start!
