Titanium J8 3000 - Page 52

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The theory of using
To understand how Titanium Winch winches works you should familiarize with the
winching procedure. For winching purposes the resistance to motion of a vehicle
dependant on 4 main factors:
1. The inherent resistance to movement of the vehicle.
2. The total weight of the vehicle.
3. The type of the surface to be transmitted.
4. The gradient up which the vehicle required to be moved.
5. The stage of the broken wheels.
Ad. 1. The inherent resistance to movement of the vehicle depends on:
 Weight of the vehicle
 Damages of the vehicle’s running gear
 Friction in the drive – chain
Ad.2. The total weight of the vehicle includes: all extra equipment, luggages, fuel,
passengers etc.
Ad. 3. The type of the surface. A vehicle in good condition on hard surface will only
require a force of about 4% of its total weight to induce motion, whereas a vehicle to
be winched from a bog will require a pull equivalent to about 50% of the total weight
of the vehicle. The table below shows that different surfaces require proportionate
efforts to produce vehicle movement.
Type of surface
Effort required to move vehicle as a
fraction of total weight
Hard road
1/25 total weight of the vehicle
Grass
1/7 total weight of the vehicle
Sand (hard, wet)
1/6 total weight of the vehicle
Gravel
1/5 total weight of the vehicle
Sand (soft, wet)
1/5 total weight of the vehicle
Sand (wet, dry, loose)
1/4 total weight of the vehicle
Shallow mud
1/3 total weight of the vehicle
Bug
1/2 total weight of the vehicle
Marsh
1/2 total weight of the vehicle
Clay (clinging)
1/2 total weight of the vehicle