Read your SCUBA instruments, Part 3: Computer or Bottom timer

[@rexrichard8444]

Great stuff! As a pilot (old school), this reminds me of NDB approaches/navigation. Old saying, “big cuts, fast corrections, and when in doubt, parallel your course”. I love your take a known wrong bearing so you have an idea which way to go when at the ridge...perfect!!

[@Thesponnes]

thanks for this video... now eagerly awaiting your ratio deco vdo!

[@pucioy]

Outbox. I don't have problem with any calculations in my head but as a begginer diver I'm gonna relay on computer. I just don't know yet how much influance nitrogen will have on my calculations :) But thanx for showing me my future way :)

[@UTD_ScubaDiving]

The key is your team. If you do the math with your team it's very unlikely for 2 or 3 divers to make the same mistake at the same time.

[@DivingDeveloper]

10:49 - One pressure gauge vs two on a Twinset. I dive a back-mounted manifold twins and have an analog SPG on one of the first stages and an AI transmitter on the other. I use my AI transmitter, but should that fail, the analog gauge is always there. Plus, it was nice to have when doing valve drills.

[@salprestige2577]

convert to DIR diving dude you wont need AI or stay Stroke without the body bag no offence 👈🏼

[@gijsvanlieshout]

When you calculate 'from the top of your head', do you calculate single level dives (x minutes at Y depth), multi-level dives, or do you use an average (in the depth department)? Just curious. How precise can you calculate in your head?

[@UTD_ScubaDiving]

Hoi Gijs, ik gar er van uit dat je Nederlands spreekt maar ik houw het maar op het engels :-) Very good question, I keep track of avg depth throughout the dive. By thinking ahead and starting with the first time segment. Lets say I stay at the prop of a wreck at 28m and after 8minutes I get bored and ascend to the deck at 20m. Now after 8minutes I simply find the avg by dividing the difference in depth by 2 and adding that to the shallowest depth. So now I have spent 16minutes @ 24m and my Avg is now 24. I can reset the clock in my mind and let's say I stay for 16more minutes at the deck now it's 22 for 32min. If I only spend 8 more on the deck and another 8 on the wheelhouse @ 15m I first act that which is 17,5. For 16min and now again take the difference and add to the 15m which gives me 18,5m (rounded) for 32min dive time But I suggest you join us for our Live Q/A on Ratio Deco this coming Wednesday 3. March at 20:00 cet. We will also cover depth averaging as well as many Ratio Deco topics. Hope to see you there.

[@BurhanMuntasser]

Can you provide the link for your school's website and contact information for me to communicate with you concerning tech. training please?

[@UTD_ScubaDiving]

Sorry buddy, don't know why I missed your comment. But you can reach me at [e-mail] we have really good instructors all over the world. I can put you into contact with them.