North American T-6G Texan, Pratt &amp; Whitney R-1340-AN-1 Wasp radial engine, 600 hp (450 kW).
<a href="//commons.wikimedia.org/wiki/User:Cjp24" title="User:Cjp24">Cjp24</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>