It is designed for a gap.
If there was none, tolerances could allow the attachment bar to pull up tight and never clamp tight on the leg... and you would have no way to know.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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