Determine the maximum weight in kN to one decimal point (1 DP) of the engine that can be supported without exceeding the tension given in Parameter 1 (P1) in chain AB or 1.1 x P1 in chain AC. (Example, if the maximum tension allowed in AB is P1 = 4.2kN, then the maximum tension allowed in AC is 1.1 x 4.5 = 4.95kN.) The maximum weight of the engine in kN rounded to 1 DP is?