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Scuba Forum / General / September 2004Air travel after SCUBA
Anyone experience problems getting on an aircraft shortly after doing a few days of SCUBA diving? From what I understand it is necessary to wait 36 hours after doing 2 or more dives before you travel by air or you can get bent. John Stewart >Anyone experience problems getting on an aircraft shortly after doing a few >days of SCUBA diving? From what I understand it is necessary to wait 36 >hours after doing 2 or more dives before you travel by air or you can get >bent. You can always get bent, even if you don't dive and don't fly... However, to reduce the chance of getting bent to an acceptable minimum the traditional advice has been to wait a minimum of 24hrs. Recently, data have been collected which seem to show that a minimum of 18 hrs does equally well. All of this applies to flying in a pressurized aircraft in which the cabin pressure altitude does not exceed 8000 ft. This include virtually all commercial aircraft. If you are flying in an unpressurized aircraft, or if you are traveling by land to altitudes in excess of 8000 ft, you should take the precaution of waiting longer. -- Charlie Hammond -- Hewlett-Packard Company -- Ft Lauderdale FL USA (hammond@not@peek.ssr.hp.com -- remove "@not" when replying) All opinions expressed are my own and not necessarily my employer's. > Anyone experience problems getting on an aircraft shortly after doing a few > days of SCUBA diving? From what I understand it is necessary to wait 36 > hours after doing 2 or more dives before you travel by air or you can get > bent. > > John Stewart general rule is 24 hours > Anyone experience problems getting on an aircraft shortly after doing a few > days of SCUBA diving? From what I understand it is necessary to wait 36 > hours after doing 2 or more dives before you travel by air or you can get > bent. If you get bent flying, you were bent when you got on the plane. I've flown with as little as 6 hours from dive to fly. Brian Edmonton, Alberta www.mossmanscuba.com >> Anyone experience problems getting on an aircraft shortly after doing a few >> days of SCUBA diving? From what I understand it is necessary to wait 36 [quoted text clipped - 4 lines] > >I've flown with as little as 6 hours from dive to fly. I've flown 18 hours after 6 days of hard diving. No problems. Or maybe I just got lucky. >Brian >Edmonton, Alberta >www.mossmanscuba.com  Signaturedillon When I was a kid, I thought the angel's name was Hark and the horse's name was Bob. >I've flown with as little as 6 hours from dive to fly. > > I've flown 18 hours after 6 days of hard diving. No >problems. Or > maybe I just got lucky. Ya thats what I was wondering. Some dive places make you take two days off before traveling but not many. Im sure loads of people get in diving right up to the last possible moment and say "what the f.ck" and get on the plane and are fine. John >If you get bent flying, you were bent when you got on the plane. Unprovable, unsubstantiated Bullshit. >I've flown with as little as 6 hours from dive to fly. So what? I've skated on thin ice, and petted strange pit-bulls without getting bit. What you have gotten away with in the past is immaterial. Notwithstanding, you don't mention what kind of diving you were doing. Getting on a plane after a decompression dive on trimix with O2 is considerably less risky than getting on a plane after a week of 5 dives a day on air. Using the same algorithm that gets one out of the water to get you to 10000 feet will often show that your 6 hour wait was all that was called for. e.g. ============================================================================= E:\zplan>zplan Waypoint at 240ft for 20:00 (24) on Trimix 18.0/45.0, PPO2 1.487, END 132 Norm Stop at 70ft for 1:00 (31) on Nitrox 50.0, PPO2 1.559, END 70 Norm Stop at 60ft for 2:00 (33) on Nitrox 50.0, PPO2 1.408, END 60 Norm Stop at 50ft for 3:00 (35) on Nitrox 50.0, PPO2 1.256, END 50 Norm Stop at 40ft for 4:00 (40) on Nitrox 50.0, PPO2 1.105, END 40 Norm Stop at 30ft for 7:00 (46) on Nitrox 50.0, PPO2 0.954, END 30 Norm Stop at 20ft for 9:00 (55) on 100% Oxygen, PPO2 1.605, END 20 Norm Stop at 10ft for 15:00 (70) on 100% Oxygen, PPO2 1.303, END 10 TOTAL DECO TIME: 41 minutes. DIVE RUN TIME: 70 minutes. CNS Total: 53.6% OTU's: 103 Time to Fly: 5.0 Hours ============================================================================ Not that I'd dive Zplan anymore, but the algorithmic implementation is inscrutable. For someone diving 5 or more hours a day for a week, the same calculations will result in ~20 hours. bullshark >>If you get bent flying, you were bent when you got on the plane. > [quoted text clipped - 42 lines] > > bullshark Acutally Iv only been diving once on a resort course in a 30 feet shallow two tank dive in Key Largo, FL You obviously know alot more than I do about it. I was just trying to plan a trip to mexico and get in a 3 to 4 day certification and possibly a few more dives. But thanks for the Info. Ill have to learn what all that stuff you just said means. John Stewart John general rule is 24 hours. There are a lot of factors. By the way Im looking at going to one of those all cozumel, mx all inclusive resorts that has diving. Any suggestions on decent places to stay and dive in mexico with reasonable certification prices? Thanks John Stewart >>If you get bent flying, you were bent when you got on the plane. > [quoted text clipped - 42 lines] > > bullshark John - get certified before you go. Are a least the classes - do the referral dives there. > John - get certified before you go. Are a least the classes - do the > referral dives there. Ok thanks for the advice Joe Heeeyyyy, it's our old (and I mean old in the nicest way) friend bullshark; ever figure out that DIN valve thing yet? > >If you get bent flying, you were bent when you got on the plane. > > Unprovable, unsubstantiated Bullshit. No less bullshit than the current unproven, unsubstantiated recommendations. > Not that I'd dive Zplan anymore, but the algorithmic implementation > is inscrutable. > > For someone diving 5 or more hours a day for a week, the same calculations > will result in ~20 hours. Calculations, shmalculations-algorithm, shmalgorithm. I'll let you slide ruler boys argue about numbers while I continue to do what the numbers say I can't do. Brian Edmonton, Alberta
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