Wing-root shear box diagram with shear flows and idealized areas labeled. The distribution of areas is arbitrary and set by a design team.
<a href="//commons.wikimedia.org/w/index.php?title=User:MightyJoeAYoung&amp;action=edit&amp;redlink=1" class="new" title="User:MightyJoeAYoung (page does not exist)">MightyJoeAYoung</a>
<span class="int-own-work" lang="en">Own work</span>