Altitude Diving
Altitude Diving
So after trying and failing to find an altitude specialty class locally, I've decided on the self study method of learning to dive at altitude.
I figured there may be some transplants around from some of the more elevated states that are familiar with diving at altitude who can give me some pointers. Anybody?
Anyone have some good recomended reading on the subject? Any instructors on the board who have experience diving at altitude? All help appreciated.
Jake
I figured there may be some transplants around from some of the more elevated states that are familiar with diving at altitude who can give me some pointers. Anybody?
Anyone have some good recomended reading on the subject? Any instructors on the board who have experience diving at altitude? All help appreciated.
Jake
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- Aquaphile
- Posts: 172
- Joined: Tue Jun 20, 2006 7:22 pm
There are many divers in the Tahoe area (~6500 ft) that don't do anything "special"
In the no deco setting a normal ascent would be 30ft/min with 1 min stops every 10ft starting at 50% of your max depth.
Working out the relative pressure changes, you'll see that sea level to 6500 ft is equal about 7 ft of water.
In the no deco setting a normal ascent would be 30ft/min with 1 min stops every 10ft starting at 50% of your max depth.
Working out the relative pressure changes, you'll see that sea level to 6500 ft is equal about 7 ft of water.
- thelawgoddess
- Pelagic
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hey nwbrewer, my boyfriend and i are total mountain people and want to learn about altitude diving, too. would you be interested in finding some semi-private instruction together?
"Life without passion is life without depth."~J.Hollis
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- Pinkpadigal
- I've Got Gills
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- Joined: Thu Jun 22, 2006 12:19 pm
One of the instructors in my store (David Fessler) is certified to teach Alititude diving. He has done different types. If anyone is interested in the specialty, just call the shop and we can set it up.
Amy Rhodes
PADI Master Instructor #183890
A-2-Z Scuba Instruction
http://www.a2zscuba.com
*******************
PADI Master Instructor #183890
A-2-Z Scuba Instruction
http://www.a2zscuba.com
*******************
- nice-diver
- Compulsive Diver
- Posts: 379
- Joined: Mon Nov 27, 2006 11:24 am
hi
abit late maybe
If you drive up and dive the same day, then the first dive is actuall a repetative dive(i think). If you drive up the day before, your body aclimates to the decreased pressure and the dives start just like a sea level dive. The actual depth and the theoretical depth varies with the altitude that must be taken into account (computers will correct themselves automatically;read your manual) If you are at 5000 feet and dive to 70 feet on your depth gauge; the depth to use for the tables would be 84 feet which can limit you bottom time
spend the night and use the modified depth tables, and have fun in the cold clear water.
not an expert, just trying to help
abit late maybe
If you drive up and dive the same day, then the first dive is actuall a repetative dive(i think). If you drive up the day before, your body aclimates to the decreased pressure and the dives start just like a sea level dive. The actual depth and the theoretical depth varies with the altitude that must be taken into account (computers will correct themselves automatically;read your manual) If you are at 5000 feet and dive to 70 feet on your depth gauge; the depth to use for the tables would be 84 feet which can limit you bottom time
spend the night and use the modified depth tables, and have fun in the cold clear water.
not an expert, just trying to help
Hey, we used to dive altitude all the time (being land locked and all)... The NAUI advanced book is really pretty worthless, however, the NAUI Master Diver book has a small section on atlitude diving on page 170-176. This book is by far the best 'text book' I have seen and would reccomend buying it for general reference anyway. If you are going to the HC trip in December we can discuss altitude diving with you... there really isn't much too it and Im not sure its worth paying for a class anyway. They make altitude tables and many computers adjust for altitude. I hope this helps, you should be able to purchase the book w/o the class, if you can't let me know, I have a few copies.
SOME PEOPLE ARE LIKE SLINKIES..... THEY ARE NOT REALLY GOOD FOR ANYTHING ... BUT THEY STILL BRING A SMILE TO YOUR FACE WHEN YOU PUSH THEM DOWN A FLIGHT OF STAIRS
http://www.flickr.com/photos/cera17
http://www.flickr.com/photos/cera17
Hey Cera, I just noticed your post, thanks for the reply. I'll see what I can do about finding a copy of the Master diver text. I won't be able to make the HC trip unfortunately.
I'm still diving tables for now, I was looking at picking up the NAUI RGBM Altitude tables for diving in the Cascades. I know a lot of people just trust their computers to do the altitude compensation for them, but I kind of like understanding what's going on before trying something new like that.
Jake
I'm still diving tables for now, I was looking at picking up the NAUI RGBM Altitude tables for diving in the Cascades. I know a lot of people just trust their computers to do the altitude compensation for them, but I kind of like understanding what's going on before trying something new like that.
Jake
I agree that know what is going in is key!! I didn't know that NAUI had RGBM Altitude tables??? Hum, those things are multiplying... I blame Weinke!!!! ha ha
SOME PEOPLE ARE LIKE SLINKIES..... THEY ARE NOT REALLY GOOD FOR ANYTHING ... BUT THEY STILL BRING A SMILE TO YOUR FACE WHEN YOU PUSH THEM DOWN A FLIGHT OF STAIRS
http://www.flickr.com/photos/cera17
http://www.flickr.com/photos/cera17
NAUI has RGBM Tables for, 0-2,000, 2,000-5,000 and 5,000-10,000 feet for air, EAN32 and EAN36.
I read Weinke's Diving Above Sea level. Lot's of information, and a lot of formula's that require a good grasp of decompression theory to understand. (Which I don't yet have, but I'm working on it.) ](*,)
Scuba.com has them,
http://www.scuba.com/shop/product.asp?c ... lue=058190
and I know NWSD will get them for you if you ask.
Jake
I read Weinke's Diving Above Sea level. Lot's of information, and a lot of formula's that require a good grasp of decompression theory to understand. (Which I don't yet have, but I'm working on it.) ](*,)
Scuba.com has them,
http://www.scuba.com/shop/product.asp?c ... lue=058190
and I know NWSD will get them for you if you ask.
Jake
Yes, I will try to remember to bring one... I need to check on the cost, I think they are kinda spendy, Ill look in the morn and let you know.
SOME PEOPLE ARE LIKE SLINKIES..... THEY ARE NOT REALLY GOOD FOR ANYTHING ... BUT THEY STILL BRING A SMILE TO YOUR FACE WHEN YOU PUSH THEM DOWN A FLIGHT OF STAIRS
http://www.flickr.com/photos/cera17
http://www.flickr.com/photos/cera17