Fantastic Diving Program - To Boldly Go

Bah! If it was Christmas you'd be the Grinch!

[quote="Shoka, post: 128428, member: 262"


Wrong, at all times the diver is in equilibrium with the ambient pressure, (or the video shows the consequences). In this respect there is no difference between you and a diver in a standard suit except that diver in standard dress has no way to close his nose to help him clear his ears.


Cheers Harry[/quote]

I believe they used to wear a nose clip. A very effective nose pinch.

If it is any consolation, I'm pretty sure that they arrived at that safety feature after some horrific accidents in the early days of closed diving dress.

The earlier open suits would flood, not crush you. Not so the swanky new closed dress.

Cheers Harry

I've heard that but also seen photographs without.

I guess that at least some divers learned good voluntary control of there Eustachian tubes, because the style of diving adopted was to plummet to the bottom as a matter of diver pride, and to get the job done with the least exposure possible.

I've also heard the traditional red knitted cap doubled as padding for the head if you got rattled around in the suit.

Actually a diver in standard dress is absolute master of the vertical environment, with the huge weight attached to the suit, and the divers control of the exhaust of air from the suit giving close control over buoyancy. They can apply a lot more downward force than a free swimming diver because of the weight they carry, and are sat in what amounts to a huge lifting bag...


Cheers Harry

Nobody seems to have taken me up on this, so here is my best guess.

My answer for cutting the pipe at the divers head is that the poor sod will drown but not get crushed. The pressure differential is only the same as we see standing upright with a reg in our faces.

The others are harder for me to work out. As water replaces air in the hose, the pressure differential drops, the hose full of water is exactly the same as the column of water acting on the diver, but I think the poor sod gets crushed before the hose fills, in both cases.

Harry

Wow, only just seen this... very good to watch, the part about Narcosis and Nitrogen Bubbles would be a useful addition to OW courses... really makes it "visual" for the students..... and also makes it clear what the dangers are..... think students would definitely monitor their ascent rates a little more closely then!!! LOL

thanks for the link, really enjoyed it!

I guess they equalise the same way users of Full face masks do, think about it....... You were taught more ways to equalise than the valsalver during your OW.


Only thing I'd say against it was the comment that the bends are a divers worse nightmare, bullshit they can unbend you, it's a lot harder to undrown you.

They did mention the nasty numbers of how little inspired seawater would kill you.

Harry

Little did I know watching it that I'd be in that same chamber the next day. Very interesting program and I think a trip to the local decompression chamber as part of OW course would be an eye opener for most.