GEOMETRY AND CAD / FIELD NOTE 07
Chord, Arc Length and Rise on Curved Panel Drawings
The straight chord, curved arc and rise from the chord describe different dimensions. Using one value in place of another changes both the interpretation of the part and the stock estimate.
What to check on your project
Label each dimension explicitly and include the section plane and endpoints. Where the profile is not circular, send the section curve itself. Agree whether the face, back or neutral geometry is being dimensioned.