How fast, how deep?......plz.....

[TheMorbidOne]

I am very sorry if I am wasting your time but I am hoping you can settle a disussion.
I overheard a freind saying something about going down in the oecean 1,000 feet in a submarine. The problem I have is he said they went down the 1.000 feet in about 12-13 minutes, is this is possible?
Again I am sorry if this post is out of place but I did not know where else to turn.
Thank you for your time.
:05:

 

[markfm]

1000'/12.5 minutes = 80'/minute = 24 meters/minute
From http://tea.armadaproject.org/king/11.26.2001.html

"Phil pilots the Alvin down to an average of 2000 to 2500 meters, with a maximum dive of 4500 meters. The ascent and descent rate is about 25 to 30 meters per minute."

(The Alvin is the sub that first dove to the wreck of the Titanic.)

So, I don't know about a normal submarine, but open literature describes at least specialty jobs doing things at that rate.

 

[Curt Bowen]

I am very sorry if I am wasting your time but I am hoping you can settle a disussion.
I overheard a freind saying something about going down in the oecean 1,000 feet in a submarine. The problem I have is he said they went down the 1.000 feet in about 12-13 minutes, is this is possible?
Again I am sorry if this post is out of place but I did not know where else to turn.
Thank you for your time.
:05:

Yes, I have been in a sub to 1000 feet, and it took around 15 minutes to get there.

 

[TheMorbidOne]

Thank you all, great to know you can still get answers to anything anytime on the forums.

 

[Doc Intrepid]

Dude, Mark Ellyat dropped to a depth greater than 1000' on open circuit scuba in only 12 minutes:
http://scuba.about.com/b/a/053745.htm

John Bennett did the same thing on his drop to 308 meters. For more details, google "John Bennett" or "Mark Ellyat" and "record depth"...

Going down fast isn't the challenging part...

 

[steveann]

Granted it's a month later, but I'll throw my answer in anyway.

For big metal tubes, going down fast isn't a problem, it's stopping before the tube goes squish that could be troublesome. That's the only limit a sub would have on it's descent rate. Unlike divers, there's no need to equalize your ears, as the atmosphere inside the sub stays at about atmospheric (sometimes even a slight vacuum depending on running equipment). So, you could dive a sub as fast as your controls would allow you to. 15 minutes is relatively modest.