A cutaway of a fourteen-cylinder Pratt &amp; Whitney Twin Wasp aircraft piston engine. The maximum output power was close to 1000 hp. This sectioned engine was photographed on display in a museum in Germany.
<a href="//commons.wikimedia.org/wiki/User:Ariadacapo" title="User:Ariadacapo">Olivier Cleynen</a>
<span class="int-own-work" lang="en">Own work</span>