Engineering guides
Understand the assumptions, input requirements and meaning of your calculation results.
01Piping
Pipe OD, ID and wall thickness: what to check
Distinguish nominal pipe sizes from actual dimensions before calculating weight or velocity.
02MarineDraft and trim: get the sign right
Understand mean draft, bow and stern trim, and reference-length gradients.
03CADDrawing scales and AutoCAD SCALE factors
Convert drawing lengths and distinguish geometry scaling from viewport and printing settings.