TABLE 4.2 CAPACITY INFORMATION FOR MACON CONTROLS TIME STANDARD Component Processing (hr/unit) Setup (hr/lot) Lot Size (units/lot) 0.05 1.0 60 DEMAND FORECAST Pessimistic Expected 15.000 18,000 10.000 13,000 17,000 25,000 Optimistic 25,000 B 4.5 80 0.20 0.05 17.000 40,000 8.2 120 overheating. Each of these units must be processed by a machine that Macon considers to be their process bottle- neck. The plant operates on two 8-hour shifts, 5 days per week, 52 weeks per year. Table 4.2 provides the time standards at the bottleneck, lot sizes, and demand forecasts for the three units. Because of demand uncer- tainties, the operations manager obtained three demand forecasts (pessimistic, expected, and optimistic). The manager believes that a 20 percent capacity cushion is best. 7. Macon Controls produces three different types of con- trol units used to protect industrial equipment from