Mobile cranes have specified lifting capacities based on their design and configuration. Exceeding the crane's lifting capacity can put excessive stress on the crane's structure and compromise its stability, leading to accidents and potential collapse. Overloading a mobile crane carries significant risks, including the potential for accidents, property damage, and harm to workers or bystanders. Ensuring safe load capacities is essential to protect lives, minimize the risk of equipment failure, and maintain a secure working environment. 5.5 m 2 m B 2 m 2.8 m A 60 KN Figure 1: Mobile crane As mechanical engineering consultant, you are required to design a suitable I-section parallel flange of member A, B and C for the alloy steel crane shown in figure 1. Use South African standard of steel section. It is important to select members that can form symmetrical sections about the plane of loading, eliminating any unsymmetrical bending and torsion.