Originally Posted by DABurleigh
Excellent reference, Keith
I have come across mention of minimum front axle weight in the context of adding a rear load. For motorhome traction with front wheel drive, this could be a problem, though probably only when one has a beefy rear axle
However, finding information on minimum front axle load specifications is difficult. Your thoughts would be welcome.
I've got lots of photographs similar to the one you put in your post - they all come from what used to be the Warsaw Pact countries and the Asian / Indian sub-continent......
However, to deal with your comment on safe minimum front axle weights, of course there is a limit to maintaining a safe minimum weight to prevent loss of traction on a FWD vehicle, just as there is a limit on any vehicle, think about steering and braking.
I wouldn't know where to look for minimum weights, but, it's worth bearing in mind that provided you don't exceed the maximum permitted weight over the rear axle, you don't need to worry about the front axle losing traction, this will have been taken care of during design.
Other than that, I've no idea, but do know that at the design weights maximum braking effort will be provided to each wheel at normal road speeds and steering / traction will be positive.
Perhaps one of our technical guys, I'm sure there must be someone with more than a smidgin of vehicle design experience amongst us, will be able to give a clearer answer.