Andy Davis Technical Diving Blog Sidemount Technical Wreck Resources and Articles 2020-07-24T03:22:30Z http://scubatechphilippines.com/scuba_blog/feed/atom/ WordPress http://scubatechphilippines.com/scuba_blog/wp-content/uploads/2017/10/cropped-Vitruvian-logo-color-2017-32x32.png Andy Davis http://www.scubatechphilippines.com <![CDATA[Why do tech divers use two computers?]]> http://scubatechphilippines.com/scuba_blog/?p=15336 2020-07-24T03:22:30Z 2020-07-24T03:21:05Z Andy Davis Technical Diving Blog

Why do tech divers use two computers? Technical diving requires redundancy of safety-critical equipment. If something fails, you still have to complete the planned decompression to surface safely. Being able to track time and depth for a decompression ascent is obviously critical to that requirement. It can be done (or backed up) with a written […]

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Andy Davis http://www.scubatechphilippines.com <![CDATA[Scuba Q and A: Steel or Aluminium Cylinders]]> http://scubatechphilippines.com/scuba_blog/?p=15073 2019-08-07T13:13:38Z 2019-08-07T13:13:38Z Andy Davis Technical Diving Blog

Scuba Q and A: Steel or Aluminium Cylinders Q. Do professional divers prefer aluminium or steel scuba tanks, or is it a purely personal choice? Answer: The choice of scuba cylinder material is ultimately a personal factor, although there are informed logics that can help determine that choice. The biggest influencing factor is the diver’s […]

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Andy Davis http://www.scubatechphilippines.com <![CDATA[A Performance Guide To Managing Narcosis | Technical Scuba Diving]]> http://scubatechphilippines.com/scuba_blog/?p=1420 2019-08-07T13:13:37Z 2019-08-07T13:13:37Z Andy Davis Technical Diving Blog

Under The Influence: A Performance Guide To Managing Narcosis By Barry Fowler, Ph.D.* This paper was originally prepared for habitat divers using nitrogen-oxygen mixes, where narcosis becomes a key limiting factor to performance. – Ed. Breathing hyperbaric air causes a syndrome of behavioral and subjective effects called nitrogen narcosis, which limits the work efficiency of divers and […]

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Andy Davis http://www.scubatechphilippines.com <![CDATA[Technical Diving Skills | Reaching Your Valves]]> http://scubatechphilippines.com/scuba_blog/?p=334 2019-08-07T13:13:36Z 2019-08-07T13:13:36Z Andy Davis Technical Diving Blog

Technical Diving Skills – Reaching Your Valves This article, posted at DiveDIR, gives great advice on how to reach your valves when conducting valve shutdown procedures.  It’s the most comprehensive analysis of this key skill attribute that I’ve read to date.  They call it the ‘ultimate guide’… it really is! Direct Link: http://www.divedir.com/Drills-and-Skills/valve-drills-the-ultimate-guide.html Sample: Reaching Your […]

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Andy Davis http://www.scubatechphilippines.com <![CDATA[The Varying Permeability Model (VPM) for Dummies]]> http://scubatechphilippines.com/scuba_blog/?p=4845 2019-08-07T13:13:35Z 2019-08-07T13:13:35Z Andy Davis Technical Diving Blog

VPM For Dummies The Varying Permeability Model (VPM) for Dummies By Kevin Watts   Blog editorial:  I reproduced this article, for wider dissemination, from it’s original location at RebreatherWorld forum This article attempts to provide a basic framework for looking at the VPM. My hope is that a diver who may be intimidated or frustrated […]

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Andy Davis http://www.scubatechphilippines.com <![CDATA[Don’t Get Gas Mugged | A Predictable Strategy for Stress Free Air Sharing Emergencies]]> http://scubatechphilippines.com/scuba_blog/?p=4827 2019-08-07T13:13:34Z 2019-08-07T13:13:34Z Andy Davis Technical Diving Blog

Don’t Get Gas Mugged! – A Predictable Strategy For Stress-Free Air Sharing Emergencies by Andy Davis I see lots of debate on scuba diving social media about optimal regulator configurations for air sharing. Divers debate the pros and cons of ‘traditional’ octopus, AIR2 systems, using the long hose, spare air and pony systems, primary share […]

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