There are stability reasons associated with wanting the wing to angle <i>upward</i>, which is a characteristic of low-wing designs:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Dihedral_%28aeronautics%29" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Dihedral_%28aeronautics%29</a>