1. Drawbar configuration Adjustable? Separate technical unit No In-plane? Yes Integral part of chassis Yes Stepped offset? No Angled < 10° No Yes No Large shear area? No Yes Rigid drawbar classification

2. Decision guidance for rigid drawbar classification 1.Is the drawbar adjustable in length, height or inclination? 1.YES: SEPARATE TECHNICAL UNIT 2.NO: continue to item 2 2.Is the drawbar in-plane with the chassis frame? 1.YES: INTEGRAL PART OF THE CHASSIS 2.NO: continue to item 3 3.Is the drawbar offset from the chassis plane giving a distinct step in force flow? 1.YES: continue to item 4 2.NO: continue to item 5 4.Is the length of the individual shear plate connecting the drawbar to the chassis frame more that four times the vertical off-set of the drawbar from the mid-plane of the chassis frame? 1.YES: INTEGRAL PART OF THE CHASSIS 2.NO: SEPARATE TECHNICAL UNIT 5.Does the drawbar have a section that is inclined more than 10 degrees from the plane of the chassis frame? 1.YES: SEPARATE TECHNICAL UNIT 2.NO: INTEGRAL PART OF THE CHASSIS 2013 sept 03Bolennarth Svensson, VBG & Didier Turlier, Lohr

3. H L Drawbar Frame L/H≥4 : Large shear area L/H<4 : Small shear area 2013 sept 03Bolennarth Svensson, VBG & Didier Turlier, Lohr Large shear area criterion

4. L H Drawbar Frame 2013 sept 03Bolennarth Svensson, VBG & Didier Turlier, Lohr Large shear area criterion H L Drawbar Frame Large shear area – Integrated part Small shear area – Separate technical unit Force transfer in shearing Force transfer in bending