A Company produces mechanical probe to update OWSVS (Offensive-Warfare-Support-Vehicle- Systems). For the process of making a mechanical probe, 10 process steps are needed. It is calculated that the scrap rate and rework rate are 12% and 9%, respectively. The average setup time, average machining (operational) time and the average non-operational time can be expressed as: 2.4 hours, 9.6 minutes, and 9.6 hours, respectively.

a) With a batch size of 520 mechanical probes, what must be Manufacturing Lead Time (MLT) in hours?

b) With 8 hours per shift and two shifts per day, if the plant works 5 days a week, what is the MLT in weeks?

c) If the availability factor can be expressed as 81%, then what must be the value of MLT? (in hours and weeks)