J'B's Reactive Load Bank, used in conjunction with a Resistive Load Bank, provides "point-of-use" load, where 400 Hz power is required. Load testing with only a resistive load will not provide a load with 0.8 power factor. This in turn will not show the true voltage drop when an aircraft is connected at full load. The combination of inductive reactance provided by the Reactive Load Bank and the resistice load provided by the Resistive Load Bank will yield a power factor of 0.8 lagging. This is the specified power factor in Mil-Std-704E. Also, the Reactive Load Bank will accept one or two aircraft cables, permitting full load test of power source up to 84 KVAR.