Diver Down Flags - Boating, Swimming, SCUBA Safer and Smarter
Monday, August 31, 2009
Jolie Bookspan, M.Ed, PhD, FAWM
We listened underwater until the propeller sound deepened, showing it was going away. We surfaced, and looked, and saw the boat turn around and head straight back for us. I thought it might be checking if we were all right, but Dad pushed all our heads back under. The boat smashed the water directly overhead again. Maybe the boat came to "finish us" but with the benefit of the doubt, maybe he just wasn't looking where we he was going again.
We dodged trouble. We are divers and have and use diver down flags. Boats not observing them is another problem. Every year, boats hit swimmers and scuba divers, and injure, disfigure, dismember, and kill them. Know your flags and prevent tragedies:
The Diver Down flag has a red background with diagonal white bar. It is notice to boaters that scuba divers are in the area and to keep clear. It was designed in the late 1950's so that boaters would not suddenly find themselves running over divers surfacing in their path. The "Diver-Down Flag" may be attached to a floating surface buoy and dragged around by a diving group if they will be ranging far from the entry point, or used as a stationary line for descents and ascents. It may also be flown by a boat used for divers. Some states prohibit flying the diver-down flag if divers are not in the water at the time. In that case, the dive boat will (is supposed to) raise the flag during dive activity then lower after all divers and swimmers are back onboard
A second and different diver flag designated by the International Code of Signals (ICS) was designed to protect the diving vessels. Technically, if diving operations restrict the boat's ability to maneuver, for example, attached scientific equipment, communication lines, air hoses, or other attached equipment, then a blue and white "ALPHA (alfa) flag is required. Not all dive boats are restricted so are not required to fly it, but may because it looks nautical and cool and is a diving symbol. The Coast Guard reminds, "The ALFA flag is a navigational signal intended to protect the vessel from collision."
If you are boating, keep your boat clear of Diver Down areas. Please watch the surface for those without diver down flags - swimmers and the slow moving manatee (sea cow). Every year, hundreds of manatees are killed in the state of Florida alone, by collisions with boats. It is their leading cause of death, contributing to rapidly dwindling numbers.
Enjoy your boating with attention and concern. Learn rules of the road and diver flags, don't drink and drive (leading cause of boating accidents). Care for others in the water.
Related Fitness Fixer:
- Three Common Swimming and SCUBA Myths in the News Again
- Respiratory Muscle Training for Swimming, Diving, and Running
- Exercise and Fitness in Decompression Sickness Risk
- Swimming and Pulmonary Edema Part I
- Nutrition for Endurance Swim Training
Not Related, Random Fitness Fixer:
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I make posts from fun mail and success stories. Before asking questions, see if your answers are already here - click labels under posts, links in posts, archives at right, and the Fitness Fixer Index. Why not try fun stuff, then contribute! Read success stories of these methods and send your own.
Subscribe to The Fitness Fixer, free. Click "updates via e-mail" (under trumpet) upper right.
See Dr. Bookspan's Books, take a Class, get certified DrBookspan.com/Academy.
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