Do you think this is a qualified CESA？

[MidOH]

I get that. But I wanted to experience it that way as well.

Entanglement, or the odd chance Im dropping my rig on the way up.

 

[Doc]

Not to standards.

Neither are yellow fins.

 

[tursiops]

Neither are yellow fins.

Have you EVER made a serious post?

 

[Angelo Farina]

I notice a number of things done wrongly:.
1) kicking style really horrible and inefficient. The student should learn to swim with fins before taking a diving course...
2) reg in mouth. There is no reason for removing it. It is just dangerous.
3) he is not exhaling continuously. Also this is very dangerous, even in a pool.
4) I do not understand what he is doing with the power inflator. During a real vertical CESA he should dump some air...

 

[Bob DBF]

I noticed he didn't even exhale on his actual ascent, which was the only part that really counts. I believe that training an emergency procedure by doing something completely different is better served by intellectual understanding alone.

 

[rick00001967]

so first of all i congratulate anyone who even understood the original post.

second, our shop starting doing horizontal cesa a long time ago so i have no issue with that.

what i would have an issue with is the fact that the diver was not exhaling. not at all.

i also do not support the idea of removing the reg from the mouth. i taught my students to NEVER take their reg out unless they have a working one to replace it.

and last, i personally would not encourage the idea of disconnecting the bc inflate hose. i understand you are trying to make sure they do not cheat but any instructor should be able to easily tell if they hit the inflate button.

i cannot recall if the diver had their right hand on a weight pocket. we teach one hand on hose, one on a pocket.

on the plus side it looked like they were neutral, they did have the hose in hand ready to dump as required to control ascent, they were looking where they were going, and they were moving at a nice easy pace. they also looked to be manually inflating at the surface.

 

[tursiops]

so first of all i congratulate anyone who even understood the original post.

second, our shop starting doing horizontal cesa a long time ago so i have no issue with that.

what i would have an issue with is the fact that the diver was not exhaling. not at all.

i also do not support the idea of removing the reg from the mouth. i taught my students to NEVER take their reg out unless they have a working one to replace it.

and last, i personally would not encourage the idea of disconnecting the bc inflate hose. i understand you are trying to make sure they do not cheat but any instructor should be able to easily tell if they hit the inflate button.

i cannot recall if the diver had their right hand on a weight pocket. we teach one hand on hose, one on a pocket.

on the plus side it looked like they were neutral, they did have the hose in hand ready to dump as required to control ascent, they were looking where they were going, and they were moving at a nice easy pace. they also looked to be manually inflating at the surface.

So would you have passed this student? Does it really matter if he did some things right, if he did some dangerous things wrong?

 

[rick00001967]

So would you have passed this student? Does it really matter if he did some things right, if he did some dangerous things wrong?

sorry but was that a serious question? hard to tell these days. i would have thought my response was pretty clear.
imho both the student and the instructor need to be retrained and how to perform a proper cesa.

 

[Doc]

Have you EVER made a serious post?

Okay, okay… FLIPPERS.

Better now?

 

[LEO1982]

Depending upon your agency, it is a standards violation to remove the regulator from the mouth. This is pretty much true everywhere in the world. A thread a few years ago indicated that Belgium was the only place that still allowed CESAs with the regulator out. This practice followed a UHMS study that found that CESA was by far the number one exercise associated with student fatalities, and the diver inhaling water and drowning during the ascent was the primary reason.

A primary rule of performance instruction is to make the practice as much like the real life as possible. In real life, you absolutely want the OOA diver to keep the regulator in the mouth for two reasons.

1. It will prevent the diver from inhaling water and drowning
2. During the ascent, as ambient pressure decreases, the diver will be able to inhale air from the tank. That is only true if the regulator is in the mouth.

In the real world, if the diver begins the OOA ascent while reasonably close to neutrally buoyant, then the air in the BCD will expand. In order to maintain control, the diver will need to learn to dump air during the ascent. Divers should never need to add air to the BCD to ascend, unless that have dumped too much too soon while overweighted.

Thank you for your reply

This is not an exam or teaching. The reason for this is that I said that it is very difficult to do CESA in a 1.5-deep swimming pool according to the standard (the standard is: length 9 meters, time not less than 30 seconds, suspension, forward horizontal swimming can not touch the bottom or Out of the water, the mouth makes a sound and keeps spitting out bubbles) If it is difficult to do it in a pool with a depth of 1.5 meters, it will sink in the second half, and kicking the fins may speed up. The video sender thinks it is easy and he can do it, so we call made a bet,
In order to prevent the other party from cheating, we asked the other party to remove the REG second stages in the mouth (to avoid secretly inhaling on the way) and unplug the BCD LP hose (to avoid secretly inflating on the way)

he sent this video
I said "this is not CESA, you didn't exhale continuously during the whole process",
He said "I'm done, this is CESA" so I want to see what everyone thinks

And please forgive me that English is not my mother tongue, I translated it through GOOGle