Just checking what all of your thoughts are on rib blank layout with respect to the rolling direction of aluminum sheets. I understand the long axis of the rib should be perpendicular to the rolling direction of the sheet from the manual (ie. the grain and lettering runs top to bottom on the rib rather than tip to tail). I will be cutting out blanks soon and wanted to make sure. It seems like the scrap I would gain from being able to fit more ribs on less metal would be worth it as I will have more to practice riveting on. I am much more concerned about rivets failing than the ribs since I thought that the listed strength properties of a metal didn't take into account the grain direction. I've also seen pictures and videos of other aircraft builders with the lettering running parallel to the wing chord and I can't find a specific mention on grain in any of the Bingelis books. Thanks for the help. sorry if I'm splitting hairs here.