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Diver down flag being flown on a dive ship. The use of the red and white flag, which was created in the early 1950s by Navy veteran Denzel James "Doc" Dockery of Michigan, and popularized by Ted Nixon of US Divers, [4] is required by law or regulation in many US states, Canada, [5] and some other countries (e.g. Italy). [6]
The elementary naval diver insignia is the Scuba Diver Insignia, awarded upon qualifying as a basic naval diver. Previously, the Scuba Diver Insignia was awarded in two degrees, one for officers and one for enlisted. The Navy eliminated the Scuba Diver Officer insignia in the 1990s, but it remains in service within the Coast Guard.
The remaining insignia are awarded for deep sea dive qualifications and are issued in the degrees of Second Class, First Class, and Master Diver. Combatant diver insignia is issued to graduates of the Combatant Diver Course, who are typically in the recon community. This badge features a Dräger LAR-V rebreather and low-profile diving mask. [10]
Most countries require diving cylinders to be checked on a regular basis. This usually consists of an internal visual inspection and a hydrostatic test. The inspection and testing requirements for scuba cylinders may be very different from the requirements for other compressed gas containers due to the more corrosive environment in which they ...
Hauser started scuba diving in 1966 and was an editor of Skin Diver Magazine from 1969 to 1971. [5] In 1979 she became publicist for the Diving Equipment Manufacturers (now Marketing) Association (DEMA [ 6 ] ), and came up with the bumper sticker program, "Discover Diving," [ 7 ] a label that went on to become a major promotional jingle in the ...
The history of scuba diving is closely linked with the history of scuba equipment.By the turn of the twentieth century, two basic architectures for underwater breathing apparatus had been pioneered; open-circuit surface supplied equipment where the diver's exhaled gas is vented directly into the water, and closed-circuit breathing apparatus where the diver's carbon dioxide is filtered from ...
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