A view of two Pratt &amp; Whitney JT9D turbofans mounted on a Boeing 747-100. Engine #3 (inboard) is shown with thrust reversers deployed.
<a href="//commons.wikimedia.org/wiki/User:Ariadacapo" title="User:Ariadacapo">Olivier Cleynen</a>
<span class="int-own-work" lang="en">Own work</span>