<a href="https://en.wikipedia.org/wiki/Wright_R-3350_Duplex-Cyclone" class="extiw" title="en:Wright R-3350 Duplex-Cyclone">Wright R-3350 Duplex-Cyclone</a> of the <a href="https://en.wikipedia.org/wiki/Lockheed_P-2_Neptune" class="extiw" title="en:Lockheed P-2 Neptune">Lockheed SP-2  H (P2V 5) Neptune</a> US Navy 131542 (c/n 426-5423) in the Historic Aircraft Restoration Project on <a href="https://en.wikipedia.org/wiki/Floyd_Bennett_Field" class="extiw" title="en:Floyd Bennett Field">Floyd Bennett Field</a> (hangar B) in the <a href="https://en.wikipedia.org/wiki/Gateway_National_Recreation_Area" class="extiw" title="en:Gateway National Recreation Area">Gateway National Recreation Area</a> (NY, NJ). The Wright R-3350 Duplex-Cyclone was a twin row, supercharged, air-cooled, radial engine with 18 cylinders.
<a href="//commons.wikimedia.org/wiki/User:Ad_Meskens" title="User:Ad Meskens">Ad Meskens</a>
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<span class="int-own-work" lang="en">Own work</span>