I'm hoping to find out more about lasers for survival at sea. I started a thread, about Man Overboard, hoping lasers might be a simple addition to being found. It is easy to be 100's of miles from any other person or help, you and the person left on the boat are on your own. It's up to the boat you fell off to find you or you will die. Lasers might just be what makes the difference. Thanks for your help.