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would be more usefull to have not 100 kg and 100 liters of displacement, but 200 and 300 for example to understand better the example. 100 and 100 makes it a little bit confusing for learning.
Thanks very much for your video. And when I following your video and calculate a dive, I can’t find a correct answer, because the other Instructor said different. Can you help me to calculate this Question please?? “You are to use the Recreational Dive Planner Table or eRDPML: A diver is planning a series of 3 dives. Assume he will use minimum surface intervals, follow all Recreational Dive Planner rules and dive the following exact profiles: Dive 1 - 24 metres for 26 minutes; Dive 2 - 12 metres for 85 minutes; Dive 3 - 11 metres for 61 minutes. In minutes, approximately how long will the entire dive profile take to complete-from start to finish?” The answer I did was 425. The Instructor is 362.
Regarding the lift bag question, how do you know if the object weighs more than 7kg? In reality, you can’t… despite the weight belt suggestion. In my opinion the question should be reconsidered by PADI. Anything you cannot pick up and stow easily needs a lift bag, right?
What is a diver´s pressure group after a dive to 64 feet for 41min,? N,P,S,R?
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Thank you for this amazing explanation. I´m only a humble owd and at a very beginning of my underwater journey. But thanks to you I got answers for a lot of questions I had. You rock!
Hi, newly certified instructor here, I had a gap in my understanding of the half-times, compartments, m-values and surface interval credit, and your video series really helped me fill that gap. Thank you, this is all very clear now! One thing I am wondering though is why the tables were designed using a 60/120 minute gas washout tissue compartments intead of using the EE washout theory? If I understand well, the EE washout theory is a closer representation of the current nitrogen loading in each compartment, so why not using it in our models for surface interval calculation?
You would not be able to put it on a 2 sided slate if you used EE, it would become a kind of 3d thing! The advances in computing since they were made is what has made EE more commonplace.
Very well done 👍. If you get your tanks filled at altitude, would there be any difference in N2 and O2 ratios? Or is it still the same (just partial pressures are reduced), once tank is pressurized to 200bar it ends up the same. Thank you.
Great review! I’m a nurse that is a major respiratory system nerd and always love to reup my knowledge Tao thanks. Trying to get into diving rn. Wish I did it when I lived in Utila…. 😑
