Footprint, traction and getting bogged.
The modern vehicles we use to get around are designed to achieve a balance between pressure to gain resistance and low pressure to avoid compaction ( on soft surfaces )
Most of these machines are designed to be flexible in use .
Not sure you can say the same about all those people who buy 4WD's . They buy the thing expecting it to work without thinking .
We country folks have to wear the fears of those who know zilch about the environment . Many are plain lethal with their wide tyres even on a good road
Paradoxically many have a 4WD and yet don't know how to avoid getting bogged.
Typically human beings who get bogged blame the technology rather than their own ignorance . This error also leads to poor advice , fear and irrational comments.
-- You can avoid high compaction by lowering tyre pressures which on conventional tyres ( not so much wide tyred bikes which have very low pressures ) rapidly decrease ground pressure and the risk of sinking on the surface .
- you need to avoid breaking the surface of the soil by wheel spinning as the roots in the surface soil provide a reinforcing effect . ( many Australian soils have sodic subsoil horizons which have very little cohesion when wet ) They" turn to soup " as we say .
-- if you can't traverse the above soils in a 2WD it is sound advice to suggest you shouldn't even use a 4WD.
Because Lake Colac has dried out several times in the last decade and not had much water in it , the still unstable organic clays are a little more stable than they were in 2009 . They are still like driving on jelly but the cohesion forces while weak are strong enough to prevent you drowning if you break through .the dried crust on top . You can always, sit or lie down and wait for help .
Labels: bog a duck