This is a loose print matching the planform of a MiG-21 wing. It has spars in it, as well as bosses to retain a carbon-fiber rod if you wish. That would allow you to connect two of these through a fueselage. Prints open side down with no support.Printed open side down, in PLA, at 220 degrees, with no support. If you don't have a good fan blowing on the piece, you might want to run a minimum-time-per-layer plugin to your software if you had it; otherwise the last layer won't have time to harden before the next is laid upon it.