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+title: "Back dart depth factor"
+- - -
+
+How far down does the back dart go from the waistband. This is a factor of the Natural Waist To Seat measurement.
+
+## Effect of this option on the pattern
+
+![This image shows the effect of this option by superimposing several variants that have a different value for this option](penelope_backdartdepthfactor_sample.svg "Effect of this option on the pattern")