How do you read a Navy dive table?
Depth: For the US Navy Dive Tables depths are measured in feet of salt water. Depths are listed down the far left side of the table. When planning a dive, always round to the next deepest depth.
At what depth do you need decompression stops?
15-20 feet
Because they are known to reduce the risk of decompression sickness (DCS), safety stops should be considered standard procedure for all dives below 33 feet (10 m); they should not be considered optional. The depth most commonly associated with the term safety stop is 15-20 feet (5-6 m).
What is the no decompression limit for 60 feet?
56 minutes
What is the No Decompression Limit for 60 feet? The NDL or No-Stop time for 60 feet / 18 meters is 56 minutes according to the Recreational Dive Planner table.
How deep can you dive without decompression chamber?
A diver at 6 metres (20 ft) may be able to dive for many hours without needing to do decompression stops. At depths greater than 40 metres (130 ft), a diver may have only a few minutes at the deepest part of the dive before decompression stops are needed.
What is the minimum surface interval required?
Surface Interval Time (SIT) must be at least 10 minutes between dives. If your SIT is less than 10 minutes, you must consider your second dive as a continuation of the first dive.
How long can you dive at 90 feet?
A not uncommon 2 tank dive trip might be the first dive at a max of 90 feet with a max time underwater of 35 minutes while the second dive might have a profile of max depth of 60 feet with a max time underwater of 50 minutes. Of course, that is not to say that all divers will dive these profiles.
What is the difference between a safety stop and decompression stop?
Decompression Stop/Deco Stop While a safety stop is in essence a kind of ‘decompression stop’, if the diver has remained within the NDL (no-decompression Limits) throughout the dive, the safety stop is more of a precautionary measure rather than a mandatory stop unlike a decompression dive stop.
What happens if you exceed no-decompression limit?
If a no-decompression limit is exceeded by 5 minutes or less, make an 8-minute stop at 15 feet and remain out of the water for 6 hours before diving again.
At what depth do the bends start?
The Bends/DCS in very simple terms Anyone who dives deeper than 10 metres (30ft.) while breathing air from a scuba tank is affecting the balance of gases inside the tissues of their body. The deeper you dive, the greater the effect. And the longer you stay at depth adds even more to this effect.
How long should a surface interval be between dives?
Surface Interval Time (SIT) must be at least 10 minutes between dives. If your SIT is less than 10 minutes, you must consider your second dive as a continuation of the first dive. NAUI recommends a SIT of at least one hour between dives.
What is the absolute pressure in the ocean at 53 feet?
The absolute pressure in the ocean at 53 feet is: 2.6 atmospheres absolute.