During a driving safety training for teams (which I can only recommend to everyone) we also carried out a full braking from 50 km. Our caravan brakes, but the wheels do not block completely and you have the feeling it pushes it still. Then I tried to drive with tightened hand brake, but I hardly come from the spot. In some caravans the wheels blocked completely and with some not. They told us that we should check the brakes l assen. On demand from the dealer, I was told that if the wheels of the caravans were completely blocked, they could also break out. However, it will also be due to the rust, because the brake pads first have to grind in. We will now go to a test bench and have this tested. But now the real question: What do you mean, the wheels should block completely with a full braking?