Crash fire tender
Classification of requirement
The ACFT shall consist of a water tank of capacity
indicated below with necessary fittings:
Class SeIf-Defence
Water Capacity
Litres
Class I upto 4500
Class 11 4501 upto 6500
Class 111 6501 upto 9000
Class IV 9001 and above
The primary extinguishing agent shall be either AFFF or protein based with 3 percent or 6 percent foam
concentrate.
A mid-ship mounted pump driven of the vehicle PTO shall be fitted having a minimum output of 4000 l/rein at a delivery pressure 8.5 kg/cm2 and suction lift 1.5 m.
The pump shall also be capable of minimum output 3000 l/rein at higher pressure of not exceeding 12.5 kg/cm2 to suit the monitor output for same suction mode.
The air field crash fire tender (ACFT) shall be capable of the following minimum performance with
the monitor mounted on the roof cabin and two hand lines on either side:
A minimum output through monitor at pressure not exceeding 12.5 kg/cm2 of 3000 I to give effective monitor throw of 55 m of specified quality foam.
A minimum output of 5001 of foam to each of the hand-lines on either side of the ACFT to give a minimum effective throw specified foam of 25 m at pump delivery pressures not exceeding 8.5 kg/cm2 and using 30 m specified hose, and
It shall be possible to operate the monitor and two hand-lines simultaneously at pump delivery pressure of 8.5 kg/cm2.
Dimensions and other performance requirements
Acceleration For Class 1 0-80 kmph in
25 s and for Class 2 and
above 0-80 kmph in 40s
Maximum speed 100 km per hour
Maximum angle 30 degree
of approach
Inter axle clearance 458 mm (minimum) ( 12°min)
Under axle clearance 305 mm (minimum)
Side slope 20 percent
Gradability 50 percent
Stability 30/28/26124° (minimum)
Foldability 608 mm
Turning circle radius Less than 3 lengths of ACFT
Steering pad circle 30 m radius at 30 kmph
Articulation 300 mm (minimum)
Braking efficiency
with full load 10.7 mat 32 kmph and 40 m
at 64 kmph for Class 1 to 3
and 12 m and 50 m for
Class IV
Pump capacity 4000 l/rein (minimum) at
8.5 kg/cm2
Steering Right hand drive preferably
Drive on all wheel
For more information related read IS 951
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