PANEL LAYOUT AND ATTACHMENTS / FIELD NOTE 17
How to Specify Surface Deviation on Curved Panels
A tolerance needs a reference surface, measurement direction and inspection condition. A single deviation value does not explain where the panel is supported or which edge conditions matter.
What to check on your project
Agree on the approved model revision, measuring method, alignment datums and reportable zones. Specify how the team will treat trim edges and returns separately from the visible face. Have the design team set project values.