Week: 1 2 3 4 5 6 7 8 9 10 11 12 Gross Requirements Scheduled Receipts Projected Available Balance Net Requirements Planned Order Receipt Planned Order Release Gear Box Requirements Week: 1 2 3 4 5 6 7 8 9 10 11 12 Gross Requirements Scheduled Receipts Projected Available Balance Net Requirements Planned Order Receipt Planned Order Release Input Shaft Requirements Crankcase Model 1000 bill-of-materials Engine assembly Gear box = Lead time 2 weeks Used: 1 per engine Input shaft Lead time = 3 weeks Used: 2 per gear box