Let's try describing our OW student in main lines and then drill down from there.
How about this (in no particular order):
A beginning scuba diver should be competent in the following:
- diving on open circuit scuba to depths of 30 meters on air in non-overhead and within the no decompression limits.
- showing competence and calm handling in identifying and solving common equipment related problems such as a lost or flooded mask, a broken fin strap, leaking or flooded regulator etc.
- showing competence and calm handling in identifying and solving common physically related issues under water such as dizziness, fatigue, blockage in an air space, nausia and so forth.
- showing competence and good judgment in the evaluation of conditions and making a diveplan appropriate for the conditions, team ability, and the gear being used.
- showing competence and effective handling of "emergencies". This includes, but is not limited to self-rescue techniques, rescue of another diver under water and on the surface and knowledge of local EMS procedures etc.
- consistent control over buoyancy within a bandwidth of 1 metre and the ability to hover at will for extended periods of time in order to avoid contact with the bottom with respect to protecting sensitive marine life
- shows effective finning technique appropriate for minimizing silting and to protect sensitive marine life
- has the ability to plan and execute a dive in various environments, including salt and fresh water, limited vizibility, (night or turbid water), currents up to 2kt, surface conditions consistent with winds up to Bft force 5.
- the ability to navigate a straight out-and-back navigation pattern over a total distance of 300m or 40min with a deviation of less than 20 metres from the start/exit point.
- the ability to swim continuously for 20 minutes
- understands the physiology, biomechanics, and physics at work while scuba diving
- understands the workings of the haldane decompression model and it's implications for dive planning
out of time. Can we build on this?
R..