Alfa Flag: A blue-and-white International Code Flag A (or Alfa flag), at least 3.3 feet (one meter) high and visible from all directions, must be displayed on vessels on federally controlled waters. This flag indicates that the vessel is involved in a diving activity.
What do dive flags mean?
A dive flag indicates that scuba divers are nearby. In some areas, flying a dive flag while scuba diving is required by law, but in general it’s a good idea for safety reasons. Dive boats fly a flag to let other vessels know that divers are below. You can fly a flag from a dive float you take with you into the water.
What are the two diver-down flag?
Two Types of Diver Down Flags
The most commonly used of the two is the diver down flag, which is a red flag with a white diagonal stripe. The alpha flag, which is internationally recognized, is a blue and white colored pennant tail flag.
What color flag for scuba diving?
1.2.
That year, the Inter-Governmental Maritime Consultative Organization (IMCO), which did not see the need to include a new flag in the nautical code, chose the alpha flag (white and blue) to indicate diving operations. It is therefore internationally recognized and in use.
What flag is for diving? – Related Questions
What color do you lose first diving?
Red is the first to be absorbed, followed by orange & yellow. The colors disappear underwater in the same order as they appear in the color spectrum. Even water at 5ft depth will have a noticeable loss of red. For this reason, strobes are usually used to add color back to subjects.
What is the golden rule of scuba diving?
If you had but 30 seconds to teach someone to scuba dive, what would you tell them? The same thing Mike did — the Golden Rule of scuba diving. Breathe normally; never hold your breath. The rest, in most cases, is pretty much secondary.
What color flag means sharks?
The red flag is used as a warning that a shark has recently been seen, that there is higher than usual shark activity or that there are known conditions for high shark activity. The red flag will be flown every time after a shark has been seen, for one hour.
What colors stand out underwater?
The hardest colors to distinguish are the light blue and white. Darker colors are more visible on the light pool bottom, but they can often be confused with leaves, dirt, or shadows and you should try to avoid swim suits with lots of dark colors as well. The clear winners are the neon colors pink and orange.
What is the Colour best seen underwater?
A new study conducted by Mustang Survival, and sponsored in part by WorkSafeBC’s Research Secretariat program, found that fluorescent green immersion suits routinely beat standard oranges, reds, and yellows in terms of visual detection in water – particularly in low-light conditions.
Do you get a yellow card for diving?
The game’s rules state that “attempts to deceive the referee by feigning injury or pretending to have been fouled (simulation)” must be sanctioned as unsporting behaviour which is misconduct punishable by a yellow card. The rule changes are in response to an increasing trend of diving and simulation.
What is the number one rule for diving?
Always breathe continuously. Never hold your breath. As I mentioned earlier, this is arguably the “number one rule” of scuba because breath holding while scuba diving can lead to serious injury, even death.
What is the hardest difficulty in diving?
The most difficult dive to perform, for the record, is the reverse 1½ somersault with 4½ twists off the 3-meter board.
How far can you dive without certification?
On the other hand, you should know that recreational divers are not allowed to go deeper than 40 meters/ 130 feet, and they must take a course that provides them the necessary skills to do that. We are talking about the PADI Deep Diver Specialty.
How deep can a beginner scuba dive?
The industry standard depth limit for recreational divers is 130 feet (39 m) at sea level. During the basic scuba certification, students experience depths of 30-60 feet (9-18 m), and a “deep” dive is considered more than 60 feet (18 m).
How long can you dive at 200 feet?
According to the U.S. Navy Dive Table 5 (1999), five minutes of bottom time at 200 feet requires 7:40 of mandatory decompression at 10 feet.
Who should not scuba dive?
“If you can reach an exercise intensity of 13 METS (the exertion equivalent of running a 7.5-minute mile), your heart is strong enough for most any exertion,” he says. You also need to be symptom-free. If you have chest pain, lightheadedness or breathlessness during exertion, you should not be diving.
Is it OK to pee while scuba diving?
Be Safe!
In our previous blog article we have explained that it is perfectly normal to have the urge to pee while diving. It’s the body’s natural reaction to the underwater environment, conditions and also to the fact that you needed to stay hydrated prior to the dive.
Why do sharks not bite scuba divers?
To put it most simply – we are not their food. They do not seek us out, we are not a natural prey of sharks, and they do not like the taste of humans! It is not right to say that sharks do not attack divers, however such incidents are extremely rare.