From left to right, Sikorsky H-3 Sea King, Bell AH-1 Sea Cobra, and the Bell UH-1 Iroquois.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/34819825@N08">Pacific Aviation Museum</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/pacificaviationmuseum/3231627383/">Pacific Aviation Museum Hangar 79 - helicopters</a>