What is the ascent rate when diving?
The answer varies among scuba certification organizations. Some organizations list a maximum ascent rate of 30 feet/9 meters per minute, while others allow a faster ascent rate. For example, old PADI dive tables (based on the US Navy Dive Tables) allow a maximum ascent rate of 60 feet/18 meters per minute.
When diving at higher altitudes the proper ascent rate is?
1) Ascent rate is half the sea level max rate: 9 meters / 30 feet per minute or slower.
What is the proper rate of ascent?
Despite the lack of definitive consensus on what ascent rate divers should use, “slow” is a good way to go. The U.S. Navy and the National Oceanic and Atmospheric Administration (NOAA) use a rate of 30 feet per minute, and recreational dive-training-agency recommendations range from 30 to 60 feet per minute.
How long does it take divers to ascend?
The 30-feet-per-minute rule still applies, so if you’re at 15 feet when you start, it should take 30 seconds to surface. For a more in-depth look at making a safe ascent in the last few feet, read How to Make a Safe Ascent after Your Safety Stop.
What is considered high altitude diving?
For some divers living in landlocked places, learning to dive at high altitude is a necessity. With motivation, proper training and a sound dive plan, any diver can elevate their skills and enjoy altitude diving. Altitude is typically considered a factor in dives higher than 1,000 feet (305 meters) above sea level.
When diving at altitude above 300 meters 1000 feet What is the answer?
Any time you scuba dive at an altitude higher than 300 metres/1000 feet above sea level, you’re altitude diving. If you’re ready to discover a hidden world where few have ventured, then the PADI Altitude Diver Specialty course is for you.
How long can you scuba dive at 30 feet?
BSAC and PADI no-stop dive times:
9 metres (30 feet) dive depth: BSAC no decompression time limit of 243 minutes (PADI Tables 205 minutes).
How long can you scuba dive at 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 free dive without decompression?
There’s a bit of physics and physiology involved in a full explanation, but the short answer is: 40 metres/130 feet is the deepest you can dive without having to perform decompression stops on your way back to the surface.