D-Value = g x
0,6 x T x R / T + R - U
- T = Weight of the towing vehicle including the vertical load on the fifth wheel;
- R = Weight of the semitrailer;
- U = That part of the semitrailer weight which is directly transmitted to the fifth wheel.
- g = Gravitational acceleration; 9.81 m/s2;
- D-Value = Theoretical load for the determination of the theoretical horizontal dynamic force between towing vehicle and steering axle trailer;