Assertion: hovercraft's skirt | /r/CapableOf | reduce drag and air-cushion losses
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Source sentences:
text: This segmented, or finger-type, addition to the basic bag skirt became the version most commonly used because worn segments could be replaced quickly and economically and because the independent action of each finger allowed the whole skirt to conform much more closely to the operating surface beneath, reducing drag and air-cushion losses.