Analytics Exercise 21-1 (Algo) Recently. Phil Harris, the production control manager at Brunswick, read an orticle on time-phased requirements planning. He was curious about how this technique might work in scheduling Brunswick's engine assembly operations and decided to prepore an example to ilustrote the use of time-phased requirements plonning. Phil's first step was to prepore 8 master schedule for one of the engine types produced by Brunswick: the Model 1000 engine. This schedule indicates the number of units of the Model 1000 engine to be assembled each week during the lost 12 weeks ond is shown on the next page. Next. Phil decided to simplify his requirements plenning exomple by considering only two of the meny components that ore needed to complete the ossembly of the Model 1000 engine. These two components, the gear box and the input shaft, are shown in the product structure diagram below. Phil noted that the gear box is assembled by the Subassembly Department and subsequently is sent to the main engine assembly line. The input shaft is one of several component parts monufactured by Brunswick that are needed to produce a gear box subossembly. Thus, levels 0,1 , ond 2 ore included in the product structure diogrom to indicate the three menufacturing stages that are involved in producing on engine: the Engine Assembly Deportment, the Subossembly Deportment, and the Machine Shop. The menufocturing lead times required to produce the gear box and input shaft components are also indicated in the product structure diogram. Note that two weeks ore required to produce o batch of geor boxes and that all the geor boxes must be delivered to the assembly line parts stockroom before Mondoy morning of the week in which they ore to be used. Likewise. It takes three weeks to produce o lot of input shafts, and all the shafts that are needed for the production of geor boxes in o given week must be delivered to the Subassembly Deportment stockroom before Monday morning of that week. In preparing the MRP example Phil planned to use the worksheets shown and to make the following assumptions: 1. Twenty wo gear boxes are on hand ot the beginning of Week 1 , and eight gear boxes are currently on order to be delivered at the start of week 2. 2. Forty five input shefts are on hand at the stort of Week 1 , and 25 ore scheduled for delivery at the beginning of Week 2 . a. Initially, assume that Phil wants to minimize his inventory requirements. Assume that each order will be only for single period. Calculate the net requirements and planned order releases for the gear boxes and input shafts. Ass done using lot-for-lot (L4L). (Leave no cells blank - be certain to enter "O" wherever required.) Gear Box Requirements Input Shaft Requirements