There really is a reason for those expiration dates. These devices use a variety of chemicals, all of which can deteriorate over time, either limiting burn time or altitude, or causing the device to fail altogether. We found expired hand-held flares that were very hard to ignite or didn't seem to burn as brightly as they should, and meteor flares that didn't fly as high or burn as long as their advertised claims. A few failed to fire at all. From our experience, small boats in daylight near shore and with heavy boat traffic should consider carrying three hand-held smoke flares to guide assistance vessels to them.
Smoke is the best option for day-only signaling.
Also consider that exposure justifies expenditure. Attending demonstrations of proper handling and use of these devices that are offered by many U.S. Power Squadrons and U.S. Coast Guard Auxiliary flotillas is a great way to gain firsthand knowledge. All Rights Reserved.