I'm preparing a article for possible publication on the journal “Progress in Aerospace Sciences” (published by Elsevier).
I plan to reuse some figures cited from articles published and copyrighted by AIAA.
I tried the Copyright Clearance Center, but to be honest, I may not accept the price.
Thus, I'm trying to contact directly with the authors (the lead author if no correspondence author is noted).
Can the authors grant me the permission?