Mini-submarine AS-28 lifted to the surface at 07:26 a.m. (ALL 7 ALIVE )

Interfax ^ | August 7, 2005

[george76]

Mini-submarine AS-28 lifted to the surface at 07:26 a.m., Moscow time,with all seven crew members

[de Buillion]

"Here is a photo of Tanya Streeter. She has great lungs. "

I take back what I said about these divers having 'no equipment'!

[burzum]

Submarine escapes have been researched down to many depths. It's just that the time rapidly approaches zero for how long you have to pressurize and escape the deeper you are if you don't want to get the bends. The other key factor in submarine design is that you have to use your on board air reserves to pressurize the hatch. Considering that if you are on the bottom you probably already tried to do an emergency blow and have also tried to blow every other tank to sea, so your air banks may be somewhat depleted. Submarine engineers have to do a risk analysis due to these factors. How do you save 100 or so submariners? Emergency blow is the best bet, but if you are stranded on the bottom, how do you design your air tanks to support egress efforts after the emergency blow has failed (and depleted air). How big do you make them? Does it make sense to add weight and cost to the submarine by adding another tank when it probably won't save anyone?

They can add more tanks but there are increased costs and increased weight. This may hurt the ship in other areas (may require a redesign of components inside the hull). They can make a bigger hatch so that more people can escape at once (requiring less repressurizations), but this would radically alter ships design with small gains. There are also other items in the ships design they can alter but they all have costs. The engineers are constantly optimizing their designs for every new submarine made.

[diogenes ghost]

Wrongo, as usual, the US rescuers never left the pier.

[Kirkwood]

Special sled to go down.



And a lift bag to come up.



Tanya's entire training regimen is explained at her web site. www.tanyastreeter.com Nice site.

[diogenes ghost]

Ain't no divers on a robot sub, US or otherwise.

[de Buillion]

I am getting a lot more informed about all this, and I am sure that it has all been hashed out before. It's just that this one incident focuses on 600 ft, and I can't remember any other at this minimal depth. Most accidents are probably too deep to sucessfully do anything.

[Happy2BMe]

pings

[Kirkwood]

[burzum]

Everyone wants to go Naval Aviation. At least submariners who get picked up for officer programs. Go figure.

Good luck. You made a good choice (and I hope you get accepted as a Naval aviator). Being a junior officer on a submarine is one of the most loathed and painful officer billets in the Navy (but the pay is good). I wasn't an officer, but on submarines enlisted personnel work very closely with the officers (especially in the nuclear areas--my specialty). The Navy constantly has to sell the submarine junior officer position because it is so disliked. It has the way that it is due to the stress that submarine department heads and higher eventually experience, but very few JOs are happy with their choice during their first few years.

[Tribune7]

Thank God Bump

[Kirkwood]

Freediving Disciplines

Constant Ballast - The diver must descend and ascend kicking and completely unassisted. The diver may wear weight, but whatever weight is taken down must be returned to the surface. Other than to stop the descent at the bottom and grab a confirmation tag, the diver must not touch the rope. This is the truest form of Freediving and the most respected category amongst freedivers (despite not being the deepest) as a result of the physical element involved.

Free Immersion - The diver must descend and ascend by pulling on the rope. Weight may be worn, but this is simply variation of the constant weight category so the diver must return to the surface with the same amount of weight used for the descent. No fins are worn. To prove the diver has reached the appointed depth, video footage must show his/her hand touching a plate at that depth.

Constant Ballast Without Fins - The diver wears no fins and is not allowed to touch the rope during the dive. Typically, breaststroke is used to descend and ascend.

Variable Ballast - The diver descends on a weighted sled and returns to the surface under his or her own power, either kicking and/or pulling on the rope, or a combination of both.

No Limits - The diver descends on a weighted sled and returns to the surface using a lift bag that is inflated by the diver at depth. This is the deepest category of Freediving involving very little physical exertion and an enormous amount of mental control. The ability to equalise quickly, reliably and to great depth is imperative.

Dynamic Apnea - This category is divided in two, with fins and without fins. The divers swim horizontally not more an a meter (3.28ft) under water in a swimming pool.

Static Apnea - The diver holds his/her breath floating face down in a swimming pool.


Note that the deepest diving allows the use of lift bags, but is still extremely dangerous (what if you lost your grip?).

[Kirkwood]

"Good luck. You made a good choice (and I hope you get accepted as a Naval aviator)."

That was over 20 years ago, although it seems like yesterday! I'm now a medical school professor. I'm still in touch with medical researchers in aviation and will be collaborating soon with the USAF on a major project.

[NotJustAnotherPrettyFace]

Time line from the Interfax site:

GMT, August 7, 2005
04:59 Missile ship to take rescued crew to coast - navy headquarters
04:48 Russia mini submarine crew in satisfactory condition - commander
04:38 Rescue operation ends off Kamchatka
04:15 Russian navy official thanks Britain for aid in saving sub crew
04:07 Entire crew of AS-28 alive - Russia's Pacific Fleet command
04:05 RUSSIA AND FSU GENERAL NEWS
03:51 All crew members of AS-28 alive - Russia's Pacific Fleet command
03:48 Mini-sub AS-28 Rises to the surface - Russia's Pacific Fleet command
03:32 Mini-submarine AS-28 lifted to the surface at 07:26 a.m., Moscow time,with all seven crew members - Russia Pacific Fleet command
02:56 Health condition of crew satisfactory - press service
02:36 Contact with the crew of AS-28 constant, their physical condition'satisfactory' - Russian Pacific Fleet press service.
02:27 British Scorpio raised to surface: functioning problems - press service
01:59 British Scorpio raised to the surface due to functioning problems -Pacific Fleet press service.
01:54 Scorpio 45 has cut off the last cable holding down the Russian mini-sub,continues efforts to free it from entanglement of fishing nets - admiral
01:09 Two hoses and a steel cable left in the rescue effort - press service
00:54 Ships readying for mini-sub lifting - press service
00:30 Crew ready for emergency lifting - press service
00:15 British underwater vehicles begins cutting off cables -press service

[mm77]

I am Russian THANKS ALL OF THEM :) Russia is very happy and one more thank to ALL Rescues :))))) I wish American astronauts land safety!!!!!

[JSteff]

"It was a UK Scorpio that did the rescue."

I believe the "UK" 'bot was driven by an American crew. It was in an earlier posting this evening.

[Kirkwood]

I know a retired captain of an Ohio class SSBN sub. Interesting job driving around a bunch of nukes in complete stealth. Unfortunately he can't tell me his best stories.

[mm77]

this was nice complement Believe me :)) Y vas krasivaja gryd' :)))

[Myrddin]

The Navy offered me a commission to go with submarine duty, but I wanted naval aviation. For some reason, flying in a metal tube at high altitude is easier to deal with than cruising in a metal tube under hundreds of feet of water.

I just completed a two day training at the Aviation Survival Training Command to qualify for flying in metal tubes. Having to swim 15 yards underwater with a flight suit, steel toed work boots and a helmet is a real challenge. The follow up was being pushed to the bottom and hooked to a seat belt (again in full flight gear). You have to pull yourself 15 feet down a bar and operate 5 different styles of latch to "exit" through the hatch under water. The first time you do it with your eyes open. The second time with opaque goggles to simulate a night ditch. Having to do complex operations when you are pressed to manage the air from that last breath takes some extra mental focus.

The hypobaric chamber with smoke mask is an experience too. Frankly, the "parachute" training was pretty glossed over. I hope I never need it.

[burzum]

Submariners never can.

I saw the USS Ohio in drydock at Puget Sound Naval Shipyard in Bremerton, WA, being converted to a SSGN. I'm pretty sure she'll be doing some neat missions with the SSGN capabilities. The rebirth of the battleship (in modified form) in my opinion. It's fitting since a previous USS Ohio was a BB.

[Myrddin]

I'm tickled to see the sub crew rescued. It has to be pretty unnerving to be trapped in that fashion. The crew's families are going to be very happy.