anyone break the flying rule?
- Thread starter durian
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scubasean
Contributor
durian:
Are you asking if folks have flown within 12 hours? Or are you asking for folks to reply if they have had a DCS event occur as a result? I'm not sure what "too soon" means, unless you are asking about potential DCS hits.
Yup, before we knew any better.durian:
Gary D.
toni_al
Guest
The facts are
if you enjoy cigarettes - then later on you may suffer from lung cancer
and
if you fly early after diving - you may get DCS
Simple as that it is your free choice - do not complain later the facts are clear
if you enjoy cigarettes - then later on you may suffer from lung cancer
and
if you fly early after diving - you may get DCS
Simple as that it is your free choice - do not complain later the facts are clear
In the early days, I did fly before 24 hours (actually the rules allowed as soon as 12 for certain profiles) and had a problem..durian:
That being said.. The rules are based on nitrogen based diving..
In the last several years, I HAVE done dives with considerable decompression requirements and have flow as soon as 8 hours without any problems whatsoever.. To increase safety, I used all the proper decompression gases, used oxygen on the surface for a while to increase off gassing but MOST imortantly I was not diving a gas with ANY nitrogen in it.. I saccept the consequences if anything happens. If I have to fly sooner than I want I will dive Heliox.. helium offgasses about 2.7 times faster than nitrogen.. the slowest nitrogen "compartment" generally used is around 640 minutes, for helium divers its 240 minutes.. so being out of water 24 hours for an air/nitrox diver is about a bit over 8 hours for the heliox diver
H2Andy
Contributor
there are a few different "minimum periods" out there. For example, the U.S. Navy tables recommend that you wait at least two (2) hours before you board a plane after making a single no-decompression dive. wow that's short. on the other extreme, the U.S. Air Force says you should wait 24 hours.
DAN's recommendations (based on maximum altitude exposure of 8,000 feet / 2,440 meters, i.e. the cabin pressure of commercial airliners) are:
*A minimum surface interval of 12 hours is required before ascent to altitude in a commercial jet airliner (altitude up to 8,000 feet).
* Divers who plan to make daily, multiple dives for several days or make dives that require decompression stops should take special precautions and wait for an extended surface interval beyond 12 hours before flight. The greater the duration before flight the less likely decompression sickness is to occur. According to on-going research, DAN suggests a minimum of 17 hours after repetitive or decompression dives.
http://www.diversalertnetwork.org/medical/faq/faq.asp?faqid=54
DAN's recommendations (based on maximum altitude exposure of 8,000 feet / 2,440 meters, i.e. the cabin pressure of commercial airliners) are:
*A minimum surface interval of 12 hours is required before ascent to altitude in a commercial jet airliner (altitude up to 8,000 feet).
* Divers who plan to make daily, multiple dives for several days or make dives that require decompression stops should take special precautions and wait for an extended surface interval beyond 12 hours before flight. The greater the duration before flight the less likely decompression sickness is to occur. According to on-going research, DAN suggests a minimum of 17 hours after repetitive or decompression dives.
http://www.diversalertnetwork.org/medical/faq/faq.asp?faqid=54
octotat
Contributor
I haven't flown too soon after diving but did make the mistake of diving at altitude (5000 feet) and then drove over a 10,000 foot pass about 4 hours later. I should have checked my route more closely as I didn't realize I would be going over any passes. Luckily it was a short duration dive at fairly shallow depths, but it's a good reminder to not only plan your dive carefully, but also your actions afterward.
Probabally about 25-30 instances of doing 2 NDL dives on Saturday (last dive in the late afternoon), then going skydiving on Sunday morning.
Typical rec depths and times, jumping from 11,000' MSL. This was when the best knowledge indicated that you were safe to fly after you fell off the repetitive table.
Not a single niggle, this was when I taught at UCD which has a chamber. We did a doppler scan once after diving/jumping and came up with zip.
All the best, James
Typical rec depths and times, jumping from 11,000' MSL. This was when the best knowledge indicated that you were safe to fly after you fell off the repetitive table.
Not a single niggle, this was when I taught at UCD which has a chamber. We did a doppler scan once after diving/jumping and came up with zip.
All the best, James
Durian- why would you ask this question? Have you, or are you wondering if you could get away with it in the future. Sheez man, don't tempt fate.
Dr. Bill
Dr. Bill
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