Shell Oil Mk15 1800fsw Info Desired

Yankee Rebel

hello!

im probly putting this in the wrong forum, but being it concerned a Mk15 i figured the CCR forum may be the best place to get the answer i seek, instead of general rebreather subjects.

i apoligize for coming out of the woodwork from lurking, to make my first post a question and not an introduction. i am the same Yankee Rebel that recently started posting on DiveOz though, if that helps.

i have gone thru this forum, diveoz, yorkshire-divers, and i have read reference to a Shell Oil diver using a CCR1000 (Mk15) down to 1800fsw on heliox i believe it was. i dont remember where exactly i saw all the posts, i know one on DiveOz, and i believe a couple here, although the search function i cant find it. i have googled to no avail. i am wondering if there is any documentation, besides anecdotal evidence, that i can read, save, pass on, etc. on this dive/diver?

thankyou for the direction and help,
Yankee Rebel

ROB DAVIE

The real historian who is on-board here is Shas Readey (screen name Shas). She has an extensive collection of reference material and has alwys been very helpful in these matters. I would PM her, see if she knows where to check this, and when you get the info, don't forget to post it here.

mverick

I know of a guy.... I know it's not confirmed...... That said in the Navy he had went out of a Bell with a MK15 at over 1000feet. Said it had happened a few times... Also, didn't want to get specific about depth...

Nothing in print, but he isn't a lier......... So I tend to believe him..

Doing it doesn't seem to be a problem. It's starting at the surface and coming back to the surface that seems to be the problem.

IDA72's were bell supplied SCR's with a bailout onboard in case you lost your feed. They were for Deep working diving. Forgot what the depth was but I heard around 300m.... But, nothing confirmed about that...

dive2dive2000

Yankee,
Could be wrong but I do not belive you can free dive pass 1500' (about). Would not be able to mix gas, O2 would be toxic??? 1500' = 46.45ATA, you would need a .03% O2 at surface for mix = to a 1.4

__________________
Safe Diving,
Martin

"but what's the fun of getting what you need, instead of what you want?"

jradomski

same here.. I know of a commercial dive that claims to have done over 400m lockouts on the mk 15, also on oil rigs..

__________________
Joe Radomski
CCR Trimix Instructor Trainer
ANDI Instructor Trainer Director #10

All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.

JonnyB

If i remember correctly the "deepest" chamber dive ever made is past 2500ft or 770m made by a group of commercial divers in marceile.

/Jonny

mverick

1979 The MK 15 mixed-gas closed-circuit rebreather replaces the MK 6 UBA



1979 Divers from NEDU complete a 37-day, 1,800 fsw dive in its Ocean Simulation Facility

1981 A record 2,250-foot dive is made in the Duke Medical Center chamber


1981 The deepest salvage operation made with divers was 803 fsw when British divers retrieved 431 gold ingots from the wreck of HMS Edinburgh, sunk during World War II

1985 New low magnetic MK 16 is approved for EOD

Pretty interesting stuff...

http://www.divinghistory.com/navydivers.htm


http://www.learn-in-asia.com/technic...e_article2.htm




<SPAN style="FONT-FAMILY: Arial">701m Hydreliox 0.7%O2 pp02=0.5bars. Saturation. Deepest chamber dive

http://www.mediacen.navy.mil/pubs/al...jun00/pg14.htm

GKAM

The deepest dry dive so far is 701m done by the Greek diver Théo Mavrostomos on a Comex project.

There is extensive reference all over the web and on the Comex site.

http://www.comex.fr/suite/ceh/histo/...20anglais.html

caveseeker7

Welcome to Rebreather World, Yankee Reb. You're off to a good start.

Don't know if you looked at the Innerspace Porpoise Pack One article at Rebreather Worlwide. It includes several scanned pages from 70s magazine and newspaper articles mentioning a bounce dive to 500 feet and lockouts to 1,600 feet.

The PP-1 was a version of the Biomarine CCR1000 marketed to the commercial diving and oil industry, the units I photographed and described were actually owned and used by Internnational Marine & Petroleum Co. in the mid to late 70s.

Janwillem, who owns the website, was in touch with Vance Johnson, one of the test divers of the unit. He may have additional info on dives or contacts.

(By the way, the articles may be badly sized, opening them in a new window makes it a bit easier. So does downloading and photoshopping them. )

__________________
Cheers
Stefan



"Political Correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media,
which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.'!"

Triton

Allo!

this is where I have seen it mentioned.Very interesting read.

http://dg8fz.dyndns.org/~karl/dg8fz/...rine/index.htm