ABSTRACT
Chapter 5 furnished a number of different methods for calculating the productivity of a given
piece of equipment. Each of these methods relied on fixed estimates of time and cost. The
concept of a sustained cycle time vs. an instantaneous cycle time was introduced, and this
concept allows the estimator to compensate for the unforeseen interruptions in a typical
equipment production cycle. The sustained cycle time, which might also be called the average
daily cycle time, recognizes that equipment production systems are indeed variable even
though the mathematical model that was used to estimate production is deterministic.
