This standard provides details of bend radii used in the manufacture of rigid tubes. It also provides details of
the minimum length of straight permissible between such radii during manufacture.
This standard applies to rigid tubes conforming to EN 3717 and produced only in ASD materials.
BS EN 3658:2008 Referenced Document
EN 3717 Aerospace series - Tubes - Selection for engines fluid systems
BS EN 3658:2008 history
2008BS EN 3658:2008 Aerospace series - Tube bend radii, for engine application - Design standard