Adapting space capsule life support concepts for amateur subs

Discussion in 'Boat Design' started by FranklinRatliff, Jan 5, 2012.

Thread Status:
Not open for further replies.
  1. FranklinRatliff

    FranklinRatliff Previous Member

    The miniaturized environmental control system developed 50 years for the Mercury capsule weighed about 85 pounds and could keep an astronaut alive for 24 hours.
     
  2. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 470, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

  3. Submarine Tom

    Submarine Tom Previous Member

    LOL+

    -Tom
     
  4. Poida
    Joined: Apr 2006
    Posts: 1,189
    Likes: 50, Points: 48, Legacy Rep: 497
    Location: Australia

    Poida Senior Member

    Astronauts don't use subs??
     
  5. upchurchmr
    Joined: Feb 2011
    Posts: 2,847
    Likes: 89, Points: 48, Legacy Rep: 579
    Location: Ft. Worth, Tx, USA

    upchurchmr Senior Member

    Multiple sets of Scuba tanks would do the same thing, if you didn't go too deep. I don't get the thread - is this about drug running?

    The Mercury enviornmental control might not work so well when it got wet instead of in a dry vacuum. Why am I acting like there is something to discuss????? never mind.
     
  6. FranklinRatliff

    FranklinRatliff Previous Member

    Because <insult removed>. Your scuba tank idea, for one thing, would be much heavier and occupy a lot more volume.
     
    Last edited by a moderator: Jul 12, 2015
  7. JosephT
    Joined: Jun 2009
    Posts: 834
    Likes: 96, Points: 28, Legacy Rep: 218
    Location: Roaring Forties

    JosephT Senior Member

    I've got some colleagues at Hamilton-Sunstrand. They make the space suits for the Space Shuttle. As I recall they're about a million dollars a-piece, but I'm sure they would be happy to design/sell one that might work. Give their sales department a call.

    http://www.hamiltonsundstrand.com/Space Systems
     
  8. FranklinRatliff

    FranklinRatliff Previous Member

    Extensive documentation is available on the Mercury capsule environmental control system. I'm sure a bright engineer could figure out how to recreate this 50 year old technology for a lot less than a million dollars.
     
  9. upchurchmr
    Joined: Feb 2011
    Posts: 2,847
    Likes: 89, Points: 48, Legacy Rep: 579
    Location: Ft. Worth, Tx, USA

    upchurchmr Senior Member

    FranklinRatliff,

    You made my day, lets both ignore the PC Crap.

    <insult removed>.
    "Your scuba tank idea, for one thing, would be much heavier and occupy a lot more volume" - PROVE IT!

    Rest assured that I am a clever Engineer and I wouldn't touch this with a ten foot pole. Basically putting an old space capsule system on an AMATEUR Sub combines two different ideas that just make me laugh. While not a submarine designer, I did ride on one for a short time.

    Can you tell us something about the old environment system since there is so much information available? Please understand that I don't object to anything just because it is an old idea - the wheel still works. The 5th grade level idea that it could be used is no real value without some facts.

    Do you have any?

    Any idea how much a scuba total loss system would weight? I am assuming the amateur sub would be a shirt sleeves environment - basically atmospheric pressure, so a scuba tank would last a lot longer than it does at ambient pressure underwater. Did you know that the sub I was on ran the pressure down until it was about 6PSI instead of 14PSI? Not continuously but it reached that during a tour.

    As I remember the early space systems were pure oxygen systems and so would require less tankage. Since oxygen is only 20% of the atmosphere I suppose we could use Scuba tanks with 1/5 the volume compared to using air. I bet we are getting in the range of 85#, especially if you used modern filament wound tanks - available everywhere. All at off the shelf prices. No real development required.

    Alternatively you might as well suggest adapting the Roswell crashed spaceship environmental system.

    Perhaps Han Solo could fix the Roswell system for you.

    Do you have any idea how much the Mercury Capsule system cost? Perhaps a million dollars? - with inflation it might be pretty expensive now? We don't really have any data do we?

    Useless. Your turn to turn this into actual data for a reasonable discussion.

    Marc
     
  10. FranklinRatliff

    FranklinRatliff Previous Member

    <removed> You're an <removed> who didn't even bother getting familiar with the Mercury capsule system before shooting his mouth off.
     
    Last edited by a moderator: Jan 6, 2012

  11. Boat Design Net Moderator
    Joined: Feb 2010
    Posts: 487
    Likes: 85, Points: 28, Legacy Rep: 1004
    Location: www.boatdesign.net

    Boat Design Net Moderator Moderator

    It seems like this thread has become more hostile than productive, so therefore it's being closed. Please, let's keep forum threads civil to fellow forum members. Thank you.
     
    1 person likes this.
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.
Thread Status:
Not open for further replies.