Trimix Diver Rescues a free diver at 130meters

[NikySportsPromotion]

I didn't see him equalize once, do these guys have eardrums?

[58016428]

Fukenburgen krazydergun!!!!!!

[scubaengineering]

Dr Maurice Cross at the DDRC(UK) reserched all this many years ago - the work is not widely known, however, it is established observation. and the subject of a BBC documentary. Hope this helps.

[cebaztian]

And how do you know all this?! Sound like pure guesses to me!

1) the heart rate drop (bradycardia) is NOT under mind control.

2) The freediver is NOT just sitting there waiting to be rescued. It is more likely he is narced (N) out of his mind and THINKS the sled is going up even though its standing still.

[Bettlebonnet]

@cebaztian you ever freedived? No. Your comment speaks for it's self. You oxygen thief

[asmordi]

you can get decompression sickness only by breathing from a tank (air) .it's the nitrogen bubbles expending in your body

[FreediveUKvideos]

A very good example of keeping calm under pressure! Im a freediving instructor, so just for a matter of clarity..... No you cant get a lung over expansion injury from freediving (although you can get decompression sickness after repetitive deep dives)..... Blackout can occur at any depth although it is more common in the last 20 m of a dive due to a drastic drop of 02 partial pressure.... A reverse block is unlikely here considering equalised effectively to 130m.

[marlo916]

how dis he not get the bends?

[Born2Die83]

@marlo916 You only get the bends from breathing compressed air.

[marlo916]

@Born2Die83 ah.. makes sense. thanks

[marinefish321]

yea girlslikdivin24 but there are good scuba diving stories on the net also. The myscubastory site has dive accident videos and stories, along with lots of other videos and stories on diving! Type mscubastory into google, and its the first one! enjoy

[metelfann3]

wow that would suck balls if the free diver got a reverse block

[pariscavernicola]

@metelfann3 Do you have an idea what is a reverse block at that depth?

[metelfann3]

@pariscavernicola Not sure what you are asking but it would kill you at that deaph a reverse block is when you are going down equilizing you add air to your ears but a reverse block will only happen in one ear normaly and it is where the added air stays in and will not come out

[pariscavernicola]

@metelfann3 Dude have you ever been down there on free diving style......? well when you do you will know there is NOT such as thing on free style.Usually happens to scuba divers. AT 200ft free diving style and going up at the suface on a huge speed the amount of gas pressure into the inner ear so big that just wont happen the reverse block my friend.

My theory is that the "MIND" of the whole human body gets so much concentrated that it wont just happen cause the MIND sees what it wants.

[metelfann3]

@pariscavernicola Its not likely i know but it was a joke it would suck if that happened I snorkle and free dive and scuba i know but it would really suck

[b0ngfr0sch]

its german... the commentator says that the trimix driver RESCUE diver rescues him. he is not just accidently there its the "life insurance"

[scubaengineering]

@b0ngfr0sch Clever boy - You win tonight's star prize. Read the Comments string below for further elucidation :-)

[Ralphsmongler]

@b0ngfr0sch How did you know? You must get a lot of tail from being really smart.

[edmonddantes64]

He is unconscious for at least 30 seconds before that diver does anything...what the hell?

[natalia9316]

what about the blackout?

[pariscavernicola]

@natalia9316 blackout occurs at shallow waters close to the surface...

[RagingOblivion]

i dont think that a diver was just "passing by" lol what kind of random assumption is that obviously he was there to see or assist in the dive

[scubaengineering]

@RagingOblivion ...I get quite a few of these type of responses. Read comment string below, and all will be revealed. Cheers./B2

[megalops07]

Was he paralised??? WTF? Good he's alive!

[drox69]

scuba diver and a free diver team work huh! so we can't talk shit to bubble blowers anymore. Great job!!!

[StealY0urFace]

I'm callin BS on the title.

[scubaengineering]

@StealY0urFace Clever Boy. You may want to read some of the comments below from the individuals involved.

[StealY0urFace]

@scubaengineering "a trimix diver who just happens to be pasing by unjams him and saves the day" Theres no way that actually happened. 8)

[TrackStar828]

@StealY0urFace "I call BS on the title". The title says a diver saved a free diver, which did happen. Do you mean, I call BS on the description? moron

[StealY0urFace]

@TrackStar828 "a trimix diver who just happens to be pasing by unjams him and saves the day" odds of that are 1 in a billion at that depth. But if it is real, that's insane.

[TrackStar828]

@StealY0urFace I agree I don't think that is very likely lol. But the title is correct. A diver did save him. Is the description correct? I don't think so either.

[t10parwani]

such a good freediver.. stayed calm never moved so he doesnt consume his O2

[MMAkempy123]

thats extremely danger the pressure change could have killed him .



[drummertoaster]

Doesnt he get lung expansion injury from the rate he went up?

[scubaengineering]

@drummertoaster Consider that this is a breath hold dive. he takes a breath of air at the surface which doesn't burst is lungs(no injury, as per normal). He then descends to great depth that compresses his lungs to 1/14 of their previous volume(no injury), then ascends to the surface where the air in his lungs cause them to expand to normal size(no injury) - So at all times his lungs never exceed normal size, and thus a lung expansion injury(lungs forced larger than normal) does not occur.

[marinefish321]

hmm ok seadiver2 but there are also good dive stories and videos on the net... try the myscubastory site. type myscubastory into google and its the first one

[mtb416]

I bet he was so damn pissed.

[Tarzan07330]

i've got a question. these divers that i see not pinching their noses or moving their jaw about...how are they equalizing? what's their technique?

[scubaengineering]

@Tarzan07330 he is likelt using a BTV techniqueThe BTV (VTO) Maneuver

Stands for 'Beance Tubaire Volontaire'. In the 1950's the French navy developed a technique for middle ear equalization called 'Voluntary Tubal Opening'. This technique is difficult to teach and only approximately 30% of taught can perform it reliably. Muscles of the soft palate are contracted while upper throat muscles are employed to pull the Eustachian tube open, similar to yawning or wriggling the ears.

[Tarzan07330]

@scubaengineering thank you so much for the information! that's actually how i equalize for scuba, i just didn't realize there was a specific name for it. i really want to get into freediving this summer. i haven't done any training or anything, but static apnea just sitting down out of the water is just over 2 min now. so i'm hoping to find some techniques/training to increase that time. any tips?

[scubaengineering]

@Tarzan07330 take care of the obvious stuff 1st - stop smoking, drinking and get very aerobicaly fit. Then learn how to relax the entire body and mind by meditation. i personaly do best on an empty stomach, with a clear head, well rested and super relaxed. BTW, It would appear that the worlds elite breath hold divers(not me!) even have their heart pulse rate under mind control and can drop their pulse rates down to 20bpm or even less .. and can fight breathing spasm kicks when breathless

[Tarzan07330]

@scubaengineering damn! that's crazy!! i pole vault for my college, so i'm in okay shape. not much though, because they won't allow us to run endurance. they only let us run sprints, which isn't the best way to increase endurance for something like this...at least i don't think it would be. but i do have a problem with a rapid heart beat. my heart beat normally runs in the 60s and up to the 70s. so i'll have to work on that. thanks for the tips!

[Tarzan07330]

@scubaengineering o and i've never and never will smoke or drink. i'm pretty picky about what i put into my body. i figure if i'm gonna be doing a lot of extreme sports, my body already has enough stress and abuse on it. lol

[iiwillywonkaii]

@Tarzan07330 If your serious about freediving/apnea you should look into doing a freediving course. I learnt the basics by going spearfishing with my mates, but the best way to get better in apnea is to be properly trained in the the different techniques by other experienced freedivers/qualified insructors.

[Tarzan07330]

@iiwillywonkaii yeah, i've been looking for some courses. i found one that's offered in columbus, oh. i go to school in youngstown, oh but i'm from penfield, oh. i'm gonna contact somebody about it in the summer. i'm just busy right now with school and track. but i do want professional help to get better.

[Tarzan07330]

@scubaengineering since you helped out the first time, maybe you could answer me one more thing. i see guys diving with goggles and not masks for insanely deep dives...how do they equalize the goggles? wouldn't the pressure cause eye damage?

[scubaengineering]

@Tarzan07330 On one film of a breath hold dive attempt to 100m/330ft, I saw the breath hold diver flooding his goggles with a balanced saline solution prior to putting them on, taking great care not to spill any of the solution - if the goggles are entirely flooded there would be no 'mask squeze, though vision would be blurred of course. This is the likely solution used, since there would not be enough air in the lungs to equalize any additional external air spaces at great depth.

[Tarzan07330]

@scubaengineering ok. i guess i just don't understand the point of having goggles then if they're just going to be filled with water...?

[edmonddantes64]

@scubaengineering that is a good observation...I didn't know they did that. Good post. informative. thanks.

[ldennison1]

@scubaengineering There is also a highly extreme technique I read about where the diver actually allows the sinus cavity and middle ear to flood with liquid (which displaces the air, thereby getting rid of the need to equalize with techniques like Vasalva). This is performed by a record-breaking free diver named Patrick Musimu, who forces his nostrils open, and the seawater fills the cavity as he descends (I think...it's a bit insane). How is this safe? No freaking clue. Amazing tho..

[vanished88]

@scubaengineering I never knew that it was a special technique. I have always done this since I was a little kid, It was instinctual for me.

[MRUndrwatrhuntr]

122m Not bad but Herbert nietsch has been 214m deep so the difference is big

[TheMrtomtom]

maybe time to put another 2 cent in here ;).

for the light, it does gets darker, the cam on the rocket slegde had 2 big lights mounted, but watch the background changing from light blue to very dark blue on the freedivers decent, still i didn't had to use any torch at 122 meters.

main problem was that we encountered some very strong unexpected deep current at that day. watch the silver / grey dumpvalve knob on his back and the

position of the rocket sledge cable when he reaches the surface.

[xMandalorex]

wtf why is it dark at 130m then ? it should get dark around 300/400 there is also a vidoe of a guy gon down to 206m and its still light

[scubaengineering]

@xMandalorex

Visibility in the worlds oceans varies considerably depending on location and sea state, river run-off, etc.

Compare a cup of coffee and some fine Bombay Blue Gin(slurp);

diving in sea conditions with coffee like visibility will result in pitch black condition within a meter or 2 of the surface. However, Bombay Blue Gin viz will allow the light to perntrate considerbly further. get the idea?

It all depends on where the dive is carried out.

[xMandalorex]

@scubaengineering

ahh kool, i didnt know that, i thought if you go down 200m+ its dark everywhere no matter the location.

[FOscum]

Some really daft posts to this Vid. Step One. Do a scuba course and pref Nitrox to, so that you have at least some idea before making absolutely stupid comments . . . . IDIOTS !! He was a Safety Trimix diver at bottom station. daaaaaaaaaaaaa

[scubaengineering]

OK - Better. That is a good question.

The problem is gas planning for both the support diver and the free diver.

The support diver would need to have sufficient gas for both himself and the free diver to ascend safely to the surface.

The support diver will likely take several hours and half a dozen tanks of mixed gas to return to the surface. if a rescue attempt by this means is attempted, then there must be sufficient has available to allow this to be attempted. Email tomschwericke (below)

[liquidpows]

@scubaengineering mr.... hope you can answer my cuestion. why does these guy, the "free diver" does not need to decompress when going back up, and the other diver that you call rescue diver does, just like you said for several houers ???!!!!

[scubaengineering]

@liquidpows If you look very carefully at the video, you'll notice that the free diver is not breathing, with his lungs likely collapsed flat by the ambient pressure, whereas the trimix diver is breathing trimix, and has been hanging around for some time at depth waiting the guy on the death sledge.

Simply put, by the action of breathing gas at depth the trimix diver absorbs a fraction of the gas he is breathing and thus has to carry out staged decompression to allow this absorbed gas to leave.

[rescuediver1000]

@liquidpows free divers don't use compressed air they hold their breath therefore they do not run the risk of getting decompression the only way you can git deco is if you take a breath from compressed air underwater .

[Aznemptyjry]

I meant why don't the other diver give him some of what he was breathing.

[Aznemptyjry]

Why don't the trimix diver give him so oxygen before he goes back up

[scubaengineering]

@Aznemptyjry

Oxygen. At 100meter+. You're kidding me right?

Note:-

Max depth for breathing pure O2 swimming underwater for mortals is 4m(13ft) = 1.4bar ppO2

Max depth holding a deco stop in water is 6m(20ft) = 1.6bar ppO2

Max pressure depth relaxed in a warm dry atmosphere USN table IX is 18m/60ft = 2.8bar ppo2

Breathing Oxygen at around 12bar pressure on a body holding a massive CO2 loading from his breath hold descent would likely cause him go into Oxygen Toxicity convulsions in seconds

[mikegmbn]

@scubaengineering

(part 2) I ran out of characters on my last comment, and forgot exactly which point i was at. But, O2 is what he needs to conserve. I cannot say for sure whether or not he would have had a hypoxic black out had he attempted to unjam it himself, but it definitely would have made it more likely. And, I couldnt tell at the end whether or not he blacked out at the surface, but after staying at that depth for that long certainly increased the chances of him experiencing SWB.

[mikegmbn]

@scubaengineering

I understand what you're trying to say. but you got your terminology mixed up. A freediver of that caliber/quality is fine with a load of CO2 in him. CO2 only triggers his urge to breathe, which he is very good at controlling even though he may have diaphragmatic contractions(will always happen, no matter how good you are). Trying to unjam the sled would have used up precious oxygen(O2) which he needs in order to not have a hypoxic blackout. I couln't tell what happened at...

[SerendipitousJ]

Why does he just stay there not trying to fix it... id be freaking out!!

[scubaengineering]

@SerendipitousJ

The only way he can make the 2-way trip is by staying perfectly relaxed.

It is not uncommon for breath hold divers at the top of their profession to even have the heart rate under mind control or have amplified mamilian diving reflex as researched by Dr Maurice Cross of the UK DDRC.

If the breath holder diver struggled to free himself, he would use up precious oxygen reserves, and would never make it back to the surface.

His only chance is to remain calm and await rescue.

[PolyAthletics]

@scubaengineering I disagree. He probably saw the diver coming otherwise he would have at least tried to save himself instead of waiting to die.

[scubaengineering]

@PolyAthletics

Hi there. having a Trimix diver waiting at the bottom of the line, was of course a planned event.

If you look carefully, the breath hold diver appears to be meditating, head held back, and not looking in any direction.

It is true to save he saves himself by NOT panicking, not attempting any physical exersion to free the sledge & not attempting to swim to the surface.

I know it sounds counter logical, but the CO2 load generated from a self rescue attempt would cause death.

[Miatarshi]

hmm nvm that i watched the vid again n saw that the Trimix dive didnt go up with the free diver. xD my bad.

[Miatarshi]

5-10 meters from the surface...

[Miatarshi]

The advantage of Trimix is to reduce the chance of nitrogen narcosis. The biggest drawback is that helium is a very volatile element and therefore will continue into the "tissue". This often leads to that one faster incurred dekompressiontime. One can, in other words do not go directly to the surface without decompression stops. so after my opinion i got rlly curious about how the trimix diver went driectly to the surface n didnt just let the fre diver swim up himself when he was 5-10 meters

[Miatarshi]

n the trimix diver didnt just happen to pass by.. a diver never dives alone u kno. so he was probably a part of the plan, so the video would be more exsiting. a trimix diver should kno a diver never dives alone. pw'nd U_U

[Miatarshi]

i dun rlly understand why free divers.. um free dives. im a scuba diver myself (newbie) n i could never think of doing that. i mean its dangerous n kinda stupid. ye it would be rlly cool to be able to hold my breath for so long, but i wouldnt risc my life for it ..

[asadastronaut]

@Miatarshi you are a "newbie" shut your fucking pie hole. You know nothing about physics. What did you take the PADI course in a weekend now you know everything about diving. Idiot.

[whokilledzekeiddon]

@Miatarshi i dun rlly understand why scuba divers... um scuba dives. im a snorkler myself... etc.

[whokilledzekeiddon]

@whokilledzekeiddon i dun rlly understand why snorklers... um snorkel. I get to watch loads of underwater vids on youtube myself... and so it goes on.

[15CenterMass]

Okay, i have to ask, HOW IS IT FREE DIVING IF HE IS USING ASSISTANCE TO DECEND?!

[scubaengineering]

@15CenterMass

Just GOOGLE ( wiki free diving) for the explanation of this one.

[15CenterMass]

@scubaengineering okay did my homework, got it... i always assumed that the term was in refference to the guys that actually swim with no fins and what not... guess i should have checked before i asked. thanks :-)

[15CenterMass]

@15CenterMass okay did my homework, got it... i always assumed that the term was in refference to the guys that actually swim with no fins and what not... guess i should have checked before i asked. thanks :-)

[WolfieTed]

@15CenterMass It's not freediving if you ask me. It's holding your breath, big difference! :D

[WobblyFiddle]

forgive my ignorance but why can the free diver go to those depths without equalizing his ears? 

[scubaengineering]

@WobblyFiddle

Any breath hold or scuba dive deeper than a few meters requires the ears to be equalized, or else the ear drum ruptures inwards.

This injury is not very pleasent and can be quite painful. the inrush of water messes up the sense of hearing, and often results in feeling of Dizziness or vertigo.

The injury normal self heals within a couple of months - if not, Microsurgery (tympanoplasty) is necessary to close the tympanic membrane(ear drum) .

[benandtinagilbert]

@scubaengineering that is not what was asked wobbly fiddle asked why this diver didnt equalize. my guess would be that the answer is that there is two ways to equalize your ears 1 by holding your nose and then lightly blowing out through it or by doing a jaw wiggle or a 3rd is to use both. so as that this diver is not holding his nose he must be doing the jaw wiggle method. im open water certified with 17 dives logged my deepest being 107ft on e32 nitrox

[chemistryplan]

@benandtinagilbert

Look at his nose. He has a clamp on his nose so he just need blow through his nose. When i freedive i also have a clamp on my nose. Its soooo much easier.

[YaMumYaNanYaGran]

@WobblyFiddle They use nose clips so they can equalize hands free, Look closely and you will see it.

[WunderDoob]

a trimix diver just happened to be passing by?  ...really....

[scubaengineering]

@WunderDoob

'here we go again...'

check out the comments from the diver in the video below :-)

[YaMumYaNanYaGran]

@WunderDoob ha ha ha. Trust me. You don't just dive to 130 meters on trimix for the hell of it. He was there for a reason.

[isomikieee]

It's amazing how calm he was when it jammed

[zwedanez]

130m LOL!! Dont think so!!!!!!!!!!! More like 108m

[kondadotm]

The safety diver is quite slow... it takes him about 40 seconds which is a lot to free the free-diver (ironic?). From minute 1:30 to aproximately 2:10 the free-diver is not moving.

[kondadotm]

@ scubaengineering Although you're giving quite coherent answers to the user's comments the description is at least laughable ... "a trimix diver who just happens to be pasing by unjams him and saves the day... " I guess you didn't mean it that way...

[scubaengineering]

@kondadotm - Yes, the comment on the Trimix diver passing by IS A JOKE - it never ceases to amaze me how many people don't get this. Durr.

Let me re-iterate just to be sure. Nothing happens involving Trimix without meticulous planning - the Trimix safety diver Tom Schwericke(see his comments below) likely spent the previous week planning this dive and mixing the gas. The dive entry and descent calculated precisely so as to meet free-diver Tom Sietas during his own limited bottom time.

[kondadotm]

@scubaengineering Ok, it didn't really "sound" like a joke ;-)

[syncstation]

@scubaengineering People don't get the joke because its not at all funny buddy.

[mrcookie75]

hey since he went to the surface so fast? Wouldn't he have that condition where there are nitrogen bubbles in your bloodstream?

[scubaengineering]

@mrcookie75 - Actualy in comparison to scuba or technical divers, the breath hold diver should experience minimal DCS issues due to:-

(1)He is not breathing

(2)His lungs are collapsed due to ambient pressure further hampering inert gas uptake in the lung spaces

(3)His heart rate will be 'meditated' down to minimal bpm so as to further minimise gas uptake and metabolic usage of remaining O2.

In the extreme though, DCS is still posssible, and their are ascent protocols to reduce this risk

[BMTH4evafy]

i'm not being rude or anything  but what is the point of a rocket sledge? i don't under stand:S

[sacdigital]

Seems like they could mount some air to this contraption for, you know, breathing.

[papamoify]

alptraum

[rmariboe]

According to the speak, the diver is a safety diver on the crew and the problem was with the balloon filling too slowly. I don't think the gag was critical.

[elbowlickerr]

noob question but im not a diver, could someone tell me how come there able to come up to the surface so quick without getting nitrogen trouble ect, i thought u had to come up slowly when u go that deep?

[Longway2fall]

A single breath of air means that you aren't breathing compressed gas, and therefor your blood isn't saturated, requiring a slow decompression

[elbowlickerr]

lol how dumb am i, its pretty obvious when i think about it lol. thanks for the reply :)

[akenny22]

when you have a tank the gases in it dissolve into your body so you need to come up slow to let the gases go back out but with free diving the gases arent given time to dissolve so they can go quick

[ripoffthemonkey]

Damn those tec divers, they are everywhere these days! Cant a man just freedive in peace for once??

[Zm1z]

If it would't for that techdiver the freediver would be dead now!!

[soccom8341576]

must have been the best rocket sledge ride he ever had.

[Tekdiver1981]

Without the safetydiver he`d been dead...

[martyr2005]

and if the video is totally real, why the organitzators of nolimits dont put TWO cables with a couple of balloons each so, if the guy has a problem with his ballon he just take the other one.....what they are waiting,,,,another death like audrie mestre?

I DONT understand pls some expert tell me a logical reason for not putting another guide cables/rope next to the first one with an extra balloon of course....

[scubaengineering]

The video is real.

From what I understand, the causes of Audrie Mestres accident was that the ascent system compressed air cylinder was not fully charged.

Your suggestion of two ascent systems(main & backup) agrees with modern technical diving methodology and should likey be adapted.

Neither sys would help things if the compressed air cylinders were not filled to full pressure and verified as fully charged immediately prior to the dive.

I wonder if they have pressure gauges fitted to them?

[martyr2005]

maybe he prefered waiting the assistance instead of swiming up, even if this is propaganda, ITS JUST FUCKING IMPRESSIVE what this humans do, many people has driven a f1, many people has climbed everest, many people played in nba or football 1st league, but going in a single breat under 100m.....only a few extraordinary man has BALLS lungs and MIND CONTROL to do it

thanks free divers for all your performances

martin stephanek , william trubridge , man- dolphins and

herbert nitsch is just a beast

[martyr2005]

I DONT understand why he just dont go up....with the fins...instead of waiting if someone will repair the balloon which obviosly wasnt much broken or empy (like audrie's was).....

pelizzari had a record of variable (no baloon ) with 136 m i think, so....and he wasnt at the level of those today's freedivers....so i think is just propaganda to make us be very impressed of his mental control, but i dont neeed propaganda to know that, just watch william trubridge -88 no fins much better video

[scubaengineering]

In answer to your question, all dives to these depths have a plan. You plan the dive and you dive the plan.

Tom Sietas survived this dive because the dive plan including a backup support diver (Tom Schwericke) to assist him in the event of any unplanned problems.

In this instance, I am not sure a finning swim to the surface from this depth would have been survivable.

SteveB2

[martyr2005]

thanks for your answers man, yes audries was partially empty, so someone was very very guilty of her death, that is why the beast (herbert ) uses his own material with no possible failure, like the floating items that cant never have any trouble (i would use the same), as for the sietas swimming up, if he doesnt wait the 45 seconds of course he would have reach surf ace from 122(that he was) this guy has static apnea of 10 m ! pelizzaris record almost 8, and pelizzari variable 136m

[utarian7]

@scubaengineering why do you say that it was a back up plan for the TMX diver to be there, yet in the video caption you say a diver who "just happens to be passing by". Why the contradiction?????

[scubaengineering]

@utarian7

Ah lordy. here we go again - see previous posted replies for your answer to this one.

[TheMrtomtom]

@scubaengineering

agree with you steve. finning up is not a really an option, yes tom sietas got a breath holding record but this is in a resting position, finning up uses o2 und builds up Co2....

for the solodiving. yes at that depth you always dive solo, similar to high mountain climbing. something goes wrong on 7000 meters altitude, chances are very slim that you can help each other , still you gonna work in a team but rely first in yourself and recreational buddyteam complete different idea.

[bubblerings]

@scubaengineering As this IS the real story, please change the Description.

The Trimex diver was not just 'passing by'...

Great video, by the way. Good plan, well done!

[scubaengineering]

@bubblerings . I guess I must have done too much mix diving in the past. FYO, no trimix diver drops below the waves wearing 6 tanks to a hundred meters+ without usualy days of preparation, gas mixing, gear prep, and likely a build-up dive or two. Its a trimix diver joke, not a scuba-do joke. Sorry you didn't get it. The description stands for those who do get it. Cheers and take care.

[bubblerings]

@scubaengineering -Okay, since he almost died, no, I really didn't get it... sorry.

I keep telling friends to learn more about freediving, not to take chances in testing their limits.

I want them all to make it back...

I'm thrilled to see these safety vids. Thanks.

[nzwaterman]

Lucky that safety diver didn't get caught up in the rigging by his cylinders and gear. That would be a deadly ascent to the surface.

[scubaengineering]

Too true - Many tech divers have got tangled in down lines and bottom rigging at this and deeper depths with disasterous consequences.

The current trend to using rebreathers doesn't help things either, as the panic that ensues from the entanglement generates high levels of carbon Dioxide which overloads the scrubbers resulting in a hypercapnic blackout.

SteveB2

[nailer99]

@scubaengineering - well, at least with a rebreather, you have plenty of time to solve the problem, which minimizes panic. I know, because it's happened to me on a deep dive.

[UKairsoft94]

@nzwaterman But don't the freedivers get bends or are they not down long enough?

[Lehmann108]

@UKairsoft94 No. You need to understand air pressure mechanics. You only get the bends from breathing compressed air at depth for a certain length of time. If you come up too fast the compressed air which has saturated your tissue to a certain degree can not off-gas fast enough and what was a tiny bubble of air at 100 ft now expands into a very large bubble, destroying tissue and in some cases killing you. Know your dive tables and stick to them to prevent the bends.

[dreikant123]

The diver who rescues him doenst "happen to be pasing" but he is there as a security backup for the free diver. As the guy in the vid explains, the security-diver decides to interfere when he sees what's going on. So he was there to safe and not just "happened to be pasing" as you put it.

[scubaengineering]

See my and the safety divers comments from 10 months a go :-)

SteveB2

[Fidelio0690]

This is LEGEND !!!

not panicing in this situation is marvelous

[SingleBreath]

The freediver is the current world record holder and a good friend- Tom Sietas, from Germany. Yoy did well by not panicing Tom. Thank you to the superb Trimix diver. Tom's current record is +10 minutes :)

[adrianopizarro]

what`s the name of the divers, showing in this vid??

[hsiaofhong]

who just happens to be passing by! hahaha...

[unclepeter99]

Surely the trimix diver was part of the team, what's the chances? I doubt he was solo diver

[scubaengineering]

Yep - The video comments were said in jest... OF COURSE he was the bottom safety diver :-)

His comments on the video are in the message string above - LOL he he he.

[Direwolf56]

was the trimix diver part of that guys team in case something went wrong? or was he by himself and just happened to be at the right place at the right time.

[Samurailord]

great support diver. Very fucking well done by him. This could have ended bad if anyone of the two would've paniced.

[ben3580]

didn't look too hard to get it free - why didn't he have a go himself?

[scubaengineering]

The breath hold diver MUST remain perfectly still & calm to prevent any unecessary use of his remaining oxygen reserves.

It is not uncommon for such a record breaking diver to even have the heart rate under 'mental control' lowered down from normal to 10-20 beats-per-minute through meditation immediately prior to the dive - a phenomenon researched by Dr. Maurice Cross' Diving. Diseases Research Centre (DDRC) at Plymouth in the UK.

Especiely on a 4 minute round trip to the surface...

SteveB2

[Direwolf56]

ya he did perfect for not panicing :-/

[wayniac917]

id be scared shitless diving that deep without an airtank. that guy has balls

[Bardo0069]

@wayniac917 - I'd be 'scared shitless' diving at that depth *with* an airtank as air would be toxic below 66m! ;-)

[wayniac917]

@Bardo0069 air, trimix, whatever... you'll never catch me at that depth :)

[lilmissdiverchick]

dick face, its a fuckin safety/support diver.

oh yeha arandomer just happnd to be there!! i think not u tit !

[scubaengineering]

he he he.

Yep, I know - I teach them.

[lilmissdiverchick]

Lol xx

[TeamReefWrecked]

fuck that to deeeeeeep

[chachee99]

he was lucky today

[tomschwericke]

Hey Steve, thanks for putting that clip up.

I'm the Safety Diver in here.

Just to give you some Background Infos :

The dive wasn't that coincidently, rather very much planned and organised :)even the entanglement wasn't - me being there was planned :) anyway evrybody came back to the surface safe and sound :)

all the best Tom

[scubaengineering]

Hi Tom,

he he he  - isn't it amazing that people misunderstand the humour of the suggestion that a passing trimix diver made the recue. I'm still pissing myself laughing over it even now.

Yer, just passing by after a day running dive plans, another day mixing gas, another day setting up deco cylinder on the line. Some trusted friends hanging around for support, and all this coincidentaly bumping into the breath hold diver narrowly avoiding throughing a seven.

Cheers mate.

SteveB2

[chachee99]

wow. I wonder if that diver got the bends. Oh well, it is better than being dead.

[olibray]

He would not get the bends as he was diving on a single breath of air - not enough nitorgen in one breath to absorb in to the body to cause the bends. you only get the bends with the use of SCuba equipment as you inhale more gas and air under pressure for a longer period.

[scubaengineering]

Incidently, fast bouyant emergency ascents from depths as deep as 200meters have been made from submarines using an escape device called 'The Steinke Hood' No one thought it was possible, so the inventor tested it himself :-)

[Mrdeeds36]

why didnt he get the bends on his ultra fast accent

[scubaengineering]

The breath hold diver got no bends because his miniscule bottom time and lack of bottom gas breathing ensured that non of his body tissues exceeded their critical supersaturation limits according to Haldanean decompression theory.

You will notice that the safety/support diver helped him get unstuck from the bottom weight, but did not give him any gas to breath.

The safety/support diver who had to hang around waiting on the bottom for 10-20mins likely took 5 hours ascending to avoid 'the bends'

[PeteRosenburg]

Yea, a few weeks ago, we did a little bit of deep trolling, and snagged about 20 of those guys, you should have seen them rolling around the fish box, tanks banging all over the place. Not too good to eat, but great chum, and good for a spare BC or computer.

[qsucvatz]

Those random techies, all over the oceans, randomly at 130m...

safety diver duder.

[KenMolemans]

"a trimix diver who just happens to be pasing by unjams him and saves the day... unbelievable."

Yes unbelievable, maybe it was a safety diver???

[cesnitry]

nah, just passing by and knowing exactly what and where to touch..you have to be careful with world record free divers down there, is like rush hour xDD

[Samurailord]

thank you :D

You made my day^^ I can't stop laughing :D

[jurgenmanfred]

fuck thats deep

[buclerino]

Tom SIetas is the better!!