For those who really serious about if it is possible for a 100M NDL(Air) may like to study Decompression Theroy and tell all of us here.
I did heard few experienced divers visited about 200feet, cold and dark!! Not for Fun.
Ya, this is a good topic to learn. Let's just share more.
For those who had Learned the Enrich Air may know that Maxium depht for a reacreation diver.
When ppo2 is between 1.4 to 1.6. The maxium depht is to be 57M to 66M only (with Air)
So!!!. ... Padi tells you are going to Deco at different ceiling when you dive deeper than 66M.
Hehe, Padi also tells you that your maxium dive is 40M for recreation dive with air for few minutes(Safe)
So, any fool can imagine how danger is it to have a feel of diving 100M!!!
But there are still exceptional,,,Navy guys who prepare for war may allowed their ppo2 just over 2.0.
That 100M is possible for them, but who can tell they never get decompression sickness or killed?
It is year of the rat. If you believe the dive tables, let your robo rat do the job.
Tie a 100M rope to a weight and a dive computer. Drop it to the ocean and pull it up steadily in 6 minutes and see what happen. BTW, I don’t know if the computer will be locked when it exceed ppo2 1.4.
Descending to 333.0 ft at 120fpm ..... Used 13 Cuft AIR PO2=2.33 EAD=333.0ft
---> Warning Working PO2 Exceeded! <-----
->Waypoint at 333.0ft for 1 minutes Used 22 Cuft AIR PO2=2.33 EAD=333.0ft
---> Warning Working PO2 Exceeded! <-----
...The current_ceiling is at 63.47 ft.
Beginning decompression phase.
Ascending to 70.0 ft at 30fpm Used 74 Cuft AIR PO2=0.66 for 1 Minutes
Ascending to 60.0 ft at 30fpm Used 76 Cuft AIR PO2=0.59 for 1 Minutes
Ascending to 50.0 ft at 30fpm Used 79 Cuft AIR PO2=0.53 for 2 Minutes
Ascending to 40.0 ft at 30fpm Used 83 Cuft AIR PO2=0.46 for 3 Minutes
Ascending to 30.0 ft at 30fpm Used 87 Cuft AIR PO2=0.40 for 4 Minutes
Ascending to 20.0 ft at 30fpm Used 94 Cuft AIR PO2=0.34 for 8 Minutes
Ascending to 10.0 ft at 30fpm Used 106 Cuft AIR PO2=0.27 for 18 Minutes
- Dive # 1 Summary -
Total Dive time is 52 minutes.
Total Ascent time is 48 minutes.
CNS Total is 381.1 percent.
Total OTUs are 24
- Summary of Consumed Gasses -
* 0.0 ( 0.0) Cuft of NITROX-50 Used
* 0.0 ( 0.0) Cuft of Oxygen Used
*106.8 (160.1) Cuft of AIR Used
The information displayed by this software is only a simulation.
Using this information to perform an actual dive could KILL you,
or cause serious bodily injury. This software may not have
Buhlmann's Algorithm implemented correctly and most likely has
bugs. Diving with gasses other than air or exceeding the NDL limits
is extremely risky. Never perform any dive if you do not
have the experience, training, and all the proper equipment.
Great. Rolland’s computer can stimulate the dive, no need to drop it to the ocean.
What happen if it ascends immediately after touching the bottom but not “Waypoint at 333.0ft for 1 minutes”. Will it turn to a decompression dive?
Warning: We are talking a rat, not a human. Even Rolland’s robo rat can do this, it doesn’t imply a human can do this because narcosis is ignored and a small mistake would be a death penalty.
警告：我们正在谈白老鼠潜水，不是人类潜水。即使Rolland的机械老鼠可以，不代表人类可以，因为氮醉被忽略，以及小小的错误会是死刑。
Well, I let my rat do a mission impossible work now.
Now, We can call this Super Rat.
It can hold at ppo2=2.33 and desenting @180Feet/mins and Accending 180Feet/mins.
Just touch the bottom at 333Feet and Turn arround, With 180 Feet Rate, when you returned to 243Feet, You aready take 1 mins.
So, you will take 1 mins between 243feet and 333feet, Let just take an average 288Feet (That is still not Reasonable) coz it did make to 333feet.
Now.. Oh!.. The Super rate still got Deco!!!! But Have to spend 3 mins deco only!.
Descending to 283.0 ft at 180fpm ..... Used 7 Cuft AIR PO2=2.01 EAD=283.0ft
---> Warning Working PO2 Exceeded! <-----
->Waypoint at 283.0ft for 1 minutes Used 14 Cuft AIR PO2=2.01 EAD=283.0ft
---> Warning Working PO2 Exceeded! <-----
...The current_ceiling is at 21.42 ft.
Beginning decompression phase.
Ascending to 30.0 ft at 180fpm Used 22 Cuft AIR PO2=0.40 for 1 Minutes
Ascending to 20.0 ft at 180fpm Used 23 Cuft AIR PO2=0.34 for 1 Minutes
Ascending to 10.0 ft at 180fpm Used 23 Cuft AIR PO2=0.27 for 1 Minutes
- Dive # 1 Summary -
Total Dive time is 7 minutes.
Total Ascent time is 5 minutes.
CNS Total is 40.8 percent.
Total OTUs are 7
- Summary of Consumed Gasses -
* 0.0 ( 0.0) Cuft of NITROX-50 Used
* 0.0 ( 0.0) Cuft of Oxygen Used
* 23.4 ( 35.1) Cuft of AIR Used
*The information displayed by this software is only a simulation.
Using this information to perform an actual dive could KILL you,
一百米使用一般空氣有氮醉跟氧中毒的風險（先不管回程的減壓要多久）
很多東南亞當地潛導都說他們幹過這種一百米的事情
先問問自己 用一般空氣下一百米前
你曾經用空氣最深的經驗是幾米？
上次也是听人说过,如果下潜的速度快一些的话,用普通空气潜到五六十米是没问题的.
氮醉可能在40米就发生，氧中毒在50多米也就开始发生，用水肺潜水的话上升速度不能太快，这样算下来到一百米处减压时间绝对要超过，先不说可不可能，至少这是极具危险性的，非常危险！
下到那么深需要用氮，氧和氦气组成的Nitox才能完成，而且都很危险。
据我所知，除了用Nitox外就只能自由潜水到那么深的深度了，循环呼吸系统也可以。
三氣混合是trimix, 不是nitrox
一般玩空氣的極限都在65米上下 氮醉可以靠鍛鍊克服 氧中毒擺明了極限就在1.6 pp02 跟鍛鍊比較無關
但是就算是用空氣下到65米 一般都會在淺水處設減壓站 或是身上帶著減壓氣瓶
這已經是技術潛水的層次了 要受訓才能這樣玩
至於一百米...我知道的 東南亞那些本地潛導去那邊都是不得已的 多半是被水流帶下去的 非有意為之
而且多半都是一生只幹過一兩次（多半是意外 但是幸運回來 也有很多沒回來的 那你就沒辦法聽他吹噓了） 這種事情等於玩命 保險不賠的
there are old divers and there are bold divers, but there are no old bold divers.
这问题有点象 “普通一把傘100米高空跳下来？有可能么？”
如果有正式学习过潜水的，答案应不难找到。
很高兴老兄身体不舒服沒冲动跟他去，否则就看不到你这问题了。 但我还是怀疑他只是吹牛，下次你叫他表演一下给你看看便是了，毕竟这样的持异功能人士不多见
俺很认真！
虽说“没看见不等于不存在”，但是有必要这样吗？
Do the Way like a Free diver
yes, free diving to more than 100m is possible (for the professional).
but scuba diving using air to more than 100m is close to possible (especially coming up as fast).
For those who really serious about if it is possible for a 100M NDL(Air) may like to study Decompression Theroy and tell all of us here.
I did heard few experienced divers visited about 200feet, cold and dark!! Not for Fun.
that is a good topic to learn .... anyone, any good informations??
that is a good topic to learn .... anyone, any good informations??
Ya, this is a good topic to learn. Let's just share more.
For those who had Learned the Enrich Air may know that Maxium depht for a reacreation diver.
When ppo2 is between 1.4 to 1.6. The maxium depht is to be 57M to 66M only (with Air)
So!!!. ... Padi tells you are going to Deco at different ceiling when you dive deeper than 66M.
Hehe, Padi also tells you that your maxium dive is 40M for recreation dive with air for few minutes(Safe)
So, any fool can imagine how danger is it to have a feel of diving 100M!!!
But there are still exceptional,,,Navy guys who prepare for war may allowed their ppo2 just over 2.0.
That 100M is possible for them, but who can tell they never get decompression sickness or killed?
呵呵 发现这里面真的好多很专业的人噢
谢谢指导了
有一种可能，他是带着水肺，但是是仿照自由潜水的方法下潜、上升，要求他的自由潜水的功力较深，下潜、上升时尽量少呼吸（有可能要少到整个过程才呼吸几口气，才不会有减压的危险），下潜时间尽量短。但还是非常危险，非专业人士，特别是没经过训练的，下潜途中没有安全保障的，不要轻易尝试。
It is year of the rat. If you believe the dive tables, let your robo rat do the job.
Tie a 100M rope to a weight and a dive computer. Drop it to the ocean and pull it up steadily in 6 minutes and see what happen. BTW, I don’t know if the computer will be locked when it exceed ppo2 1.4.
学到不少，又复习了一下潜水和高氧的知识。虽然可行，但是还是不要去做，毕竟活着的是幸运而已。。。
Let the rat do the test
Descending to 333.0 ft at 120fpm ..... Used 13 Cuft AIR PO2=2.33 EAD=333.0ft
---> Warning Working PO2 Exceeded! <-----
->Waypoint at 333.0ft for 1 minutes Used 22 Cuft AIR PO2=2.33 EAD=333.0ft
---> Warning Working PO2 Exceeded! <-----
...The current_ceiling is at 63.47 ft.
Beginning decompression phase.
Ascending to 70.0 ft at 30fpm Used 74 Cuft AIR PO2=0.66 for 1 Minutes
Ascending to 60.0 ft at 30fpm Used 76 Cuft AIR PO2=0.59 for 1 Minutes
Ascending to 50.0 ft at 30fpm Used 79 Cuft AIR PO2=0.53 for 2 Minutes
Ascending to 40.0 ft at 30fpm Used 83 Cuft AIR PO2=0.46 for 3 Minutes
Ascending to 30.0 ft at 30fpm Used 87 Cuft AIR PO2=0.40 for 4 Minutes
Ascending to 20.0 ft at 30fpm Used 94 Cuft AIR PO2=0.34 for 8 Minutes
Ascending to 10.0 ft at 30fpm Used 106 Cuft AIR PO2=0.27 for 18 Minutes
- Dive # 1 Summary -
Total Dive time is 52 minutes.
Total Ascent time is 48 minutes.
CNS Total is 381.1 percent.
Total OTUs are 24
- Summary of Consumed Gasses -
* 0.0 ( 0.0) Cuft of NITROX-50 Used
* 0.0 ( 0.0) Cuft of Oxygen Used
*106.8 (160.1) Cuft of AIR Used
The information displayed by this software is only a simulation.
Using this information to perform an actual dive could KILL you,
or cause serious bodily injury. This software may not have
Buhlmann's Algorithm implemented correctly and most likely has
bugs. Diving with gasses other than air or exceeding the NDL limits
is extremely risky. Never perform any dive if you do not
have the experience, training, and all the proper equipment.
dive safe or take up golf!!!!
Great. Rolland’s computer can stimulate the dive, no need to drop it to the ocean.
What happen if it ascends immediately after touching the bottom but not “Waypoint at 333.0ft for 1 minutes”. Will it turn to a decompression dive?
Warning: We are talking a rat, not a human. Even Rolland’s robo rat can do this, it doesn’t imply a human can do this because narcosis is ignored and a small mistake would be a death penalty.
警告：我们正在谈白老鼠潜水，不是人类潜水。即使Rolland的机械老鼠可以，不代表人类可以，因为氮醉被忽略，以及小小的错误会是死刑。
Well, I let my rat do a mission impossible work now.
Now, We can call this Super Rat.
It can hold at ppo2=2.33 and desenting @180Feet/mins and Accending 180Feet/mins.
Just touch the bottom at 333Feet and Turn arround, With 180 Feet Rate, when you returned to 243Feet, You aready take 1 mins.
So, you will take 1 mins between 243feet and 333feet, Let just take an average 288Feet (That is still not Reasonable) coz it did make to 333feet.
Now.. Oh!.. The Super rate still got Deco!!!! But Have to spend 3 mins deco only!.
Descending to 283.0 ft at 180fpm ..... Used 7 Cuft AIR PO2=2.01 EAD=283.0ft
---> Warning Working PO2 Exceeded! <-----
->Waypoint at 283.0ft for 1 minutes Used 14 Cuft AIR PO2=2.01 EAD=283.0ft
---> Warning Working PO2 Exceeded! <-----
...The current_ceiling is at 21.42 ft.
Beginning decompression phase.
Ascending to 30.0 ft at 180fpm Used 22 Cuft AIR PO2=0.40 for 1 Minutes
Ascending to 20.0 ft at 180fpm Used 23 Cuft AIR PO2=0.34 for 1 Minutes
Ascending to 10.0 ft at 180fpm Used 23 Cuft AIR PO2=0.27 for 1 Minutes
- Dive # 1 Summary -
Total Dive time is 7 minutes.
Total Ascent time is 5 minutes.
CNS Total is 40.8 percent.
Total OTUs are 7
- Summary of Consumed Gasses -
* 0.0 ( 0.0) Cuft of NITROX-50 Used
* 0.0 ( 0.0) Cuft of Oxygen Used
* 23.4 ( 35.1) Cuft of AIR Used
*The information displayed by this software is only a simulation.
Using this information to perform an actual dive could KILL you,