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How long does 80 Cubic Foot Aluminum Compact Neutral Tank last under water?
Wiki User
∙ 14y ago
This is a question that has no one answer, because the question is too general.
It depends on the divers physiology or breathing (SAC) rate, and the depth of the dive. As one dives deeper the gas in a tank compresses, and the deeper the diver goes, the more air is consumed with each breath.
A divers SAC rate is dependent on a number of variables, in general physical exertion, the divers body mass, and experience. New divers generally have much high SAC rates vs. experienced divers. Large divers have higher SAC rates as they have larger lung capacity.
The AL80 (aluminum 80CF) tank is the most common tank in the world, and an AL80 allows most divers to reach their NDL (no decompression limit) at recreational depths.
The fact that the tank is Neutrally buoyant has no bearing on the amount of gas in the tank. A Neutrally buoyant 80CF tank offers no advantage over a standard AL80 which is generally approx 4lbs positive when empty. The advantage of a neutrally buoyant tank is that it is approximately 1lbs negative in the water when empty. The allows the diver to remove about 5lbs from the weight belt or pockets.
OW certification classes explain the factors involved in determining SAC rates and time at depth, but the only way to arrive at an answer for each individual is to get certified, and dive.
Wiki User
∙ 14y ago
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