diving

[buzzc152]

Now, I really should know this having learnt human perf verbatim BUT what are the guidelines concerning flying and diving ?

I'm sure it is something along the lines of 'no flying within 24 hours of diving to a depth of more than 30 feet'

Does anyone know the exaxt figures ? I'm taking up scuba diving and would love to be able to chuck the diving kit in the buzzmobile and fly of to some remote place and do some diving. So were not talking about airline flying just GA to 3000 ft ish.

[NineEighteen]

I understood that it's only really a problem if flying above the 500mb pressure level (roughly FL180). It depends very much on how deep you're going to be. Amazingly, a depth of 10 metres (30') means you have the 'weight' of 2 atmospheres on top of you instead of just the one; and 20m is 3 atmospheres etc...

Maybe a posting in the medical forum would be a good idea or better still a chat with an AME.

I believe you're correct about the 24hr rule but personally I'm scared witless by the whole DCS scenario and will stick to paddling....forever! :D

[Julian]

Buzz,

24 hours is the rule of thumb most organisations use for recreational diving and its a good one to stick to.

If you then progress into the realms of technical diving then you may want to look into a bit more closely, if you have been undertaking extended length dives at depth on mixed gas then this will certainly effect it. As will the difficulty or exertion you encounter during the dive.

[Flying Boat]

It depends upon the system you are studying diving with.

PADI is based upon American Navy standards, BS-AC is based upon Royal Navy experience and studies.

I am a BS-AC Club Instructor and the BS-AC88 tables allow you to fly once you have a tissue code of B, that is as little as 4 hours from surfacing as a tissue code G. Taken from a level 1 table (Air pressure of 984millibars). Not advisable though, for safety's sake, you can never tell how susceptible you are to Decompression Illness.

The greater the depth the shorter the exposure to the increased pressure, you can be saturated (needing a deco stop) after 51 minutes at 18 metres, that is just on one dive.

For example; after a dive at 18 metres for between 17mins & 37mins, you will be a code D, wait just over an hour, change to a code C. Dive to 15metres, for no more than 24 minutes and surface a code F. Code G is a decompression stop code. Wait for 4 hours to a code B, 15 hours for a code A (no nitrogen left in the body).

A beginner is never recommended to do a decompression dive.

The tables are written to air on the side of safety.

It is always wiser to extend the time between surfacing and flying.

Before worrying about this question, whichever system you choose to dive with, study hard, learn to be a good diver then you will be able to make your own educated judgement as whether to dive & then fly.

Enjoy your training & studying, and welcome to the wonderful world of diving.

FB:D

P.S: I remember, during the Dive Leader theory lessons, the bottom of most slides had the word 'death' on it.

[BIG MISTER]

Flying Boats right when he says read up and be careful !

Working near LGW I have had to give Ambulance Escorts (or Fast Runs as we call them) to a number of people returning from a diving trip and having landed in a very bad way.

We have an understanding with the Ambulance crews......If they turn off their blue lights.....theres no need to hurry anymore ! ! ! ! ! :( :( :(

Sad but true.....read up and then be safer than the book says !

ENJOY !!!!!

:}