No matter how big your boat is when you are lost you are a small object in a large ocean.
Coast Guard reminds mariners not to use emergency flares as celebration tools during 4th of July
Given that the cheapest flare set costs about $33 and expires 42 months after manufacturing, the Sirius substitute may be a "no brainer."
The Royal Yacht Association has challenged the United Kingdom’s requirement that recreational vessels carry flares, saying that new technologies can offer better, safer options.