Aircrane, Inc.’s N47B is staged at the US Forest Service Helibase, Sunriver Airport Oregon (S21), assisting at the Crane Prairie Complex Fire. Mfg. in 1957 and converted to turbo power in 1975.
<a href="//commons.wikimedia.org/wiki/User:Tequask" title="User:Tequask">Tequask</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>