Scales, ContinuedTypes of scalesArchitect scales are the most common in a Navy Drafting shop, followed bythe chain or civil engineer’s scale. Mechanical engineer’s scales are alsofound in some shops.ARCHITECT’S SCALE: This scale is the most common because itmeasures increments in terms of feet and inches. It has eleven scales on sixscale faces. All scale faces are double numbered except for the 16 scalewhich stands alone. The 16 scale equates to a standard ruler. The architect’sscale is open divided with the fully subdivided increment divided into 12(inches). Lay off feet using the main scale to the right of the 0 mark. Layoff inches from the subdivided increment to the left of the 0 mark.Figure 2-62 shows the scales on an architect’s scale.Figure 2-62. —Faces on an architect’s scale.Continued on next page2-52
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