<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle C_{N}}"><semantics><mrow class="MJX-TeXAtom-ORD"><mstyle displaystyle="true" scriptlevel="0"><msub><mi>C</mi><mrow class="MJX-TeXAtom-ORD"><mi>N</mi></mrow></msub></mstyle></mrow><annotation encoding="application/x-tex">{\displaystyle C_{N}}</annotation></semantics></math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/977915dd0fc4be599697ee95efb498350bad48f8" class="mwe-math-fallback-image-inline" aria-hidden="true" style="vertical-align: -0.671ex; width:3.353ex; height:2.509ex;" alt="{\displaystyle C_{N}}"></span> of a missile with grid fins depending on roll angle, according to Timothy Wayne Ledlow II in his thesis Integration of Grid Fins for the Optimal Design of Missile Systems <a rel="nofollow" class="external text" href="https://etd.auburn.edu/bitstream/handle/10415/4111">/Ledlow_Thesis.pdf;sequence=2</a>.
<a href="//commons.wikimedia.org/wiki/User:Bernard_de_Go_Mars" title="User:Bernard de Go Mars">Bernard de Go Mars</a>
<span class="int-own-work" lang="en">Own work</span>