I own three of the Sky King lost model alarms. They seem to work well, and I've never had one in a plane that went down. But I did lose my Zagi a few weeks ago, and was cursing myself that I didn't have one of these locators in the plane at the time. I went searching through the woods for about an hour, and it was tough going. The underbrush was extremely thick. By luck I managed to find it. When I got the plane out I checked to see what had gone wrong. Nothing was working. No motor, elevons, or receiver power. Nothing.  I went to disconnect the LiPo battery, and when the Dean's connector was about half way out suddenly everything turned back on again. Then I plugged the connector all the way back in again, and everything shut down. Unplugged it half way again, and suddenly everything came back to life. Plugged it back in all the way, dead. My connector apparently had gone bad somehow. And even if I had one of these lost model locators in the plane when it went down, it still wouldn't have worked because there would have been no battery connection to supply it with power. When things go wrong, they can really go wrong. I was lucky that I found this plane.

juggler