Your comment reminded me of a video I saw on Youtube which highlights the utility of having a reliable beacon for rescue services to track your location:<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=jTiGU5TiYCE" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=jTiGU5TiYCE</a><p>They were flying a Cessna 170B into a remote part of Alaska in August 1989 when they encountered an engine failure. They survived, and the plane was recovered shortly thereafter (performing an engine swap in the field no less!), but I think it illustrates pretty well the sorts of circumstances where you want something <i>reliable</i> for search and rescue teams to follow. (The video and its description are light on details regarding the type of device used.)