[PSUBS-MAILIST] penetration schedule

[hank pronk via Personal_Submersibles]

Brian,I would add a few nipples and cap them off, you will want them down the road.A trim tank may be a good idea for such a heavy sub, unless you have real powerful vertical thrusters.  I find when I take a passenger, even my daughter Roman who is light as a feather, I am always quite over weight.  That is no problem at all in a Gamma size sub because the vertical thrusters have enough jam to stop the sub hitting bottom.  A trim tank would be good to keep you closer to ideal weight, or have lots of small weights to take out.  I foolishly made two rather heavy lead weights.   Are you running your O2 through a ss nipple, is that okay, I am planning to do that for external O2.  I remember talk about the K subs needing a Bronze fitting or something like that.Hank 


     On Thursday, August 13, 2015 11:52 AM, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
   

 Hank,            Here are all my penetrations: Front hard ballast tank 1.   flood valve -  1/2" ss rod thru hull  2.   vent valve 3.  air inject    -  ss coupling Main ballast tank (soft) 1. flood valve  - ss 1/2" rod thru hull 2. air inject mechanical penetrations:  1.  front flaps       - ss 1/2" rod thru hull  (all)  2. back flaps  3. motor turning   ( steering ) Breathing Oxygen  -  3/4" coupling  or smaller  ( will bush) Flood Valve  - 1 1/2"  - ss coupling  ( near bottom) main ballast HP air in   -   #1 - 3/4"  ss coupling  #2 - 3/4"     ( will have bushings to 1/2" or smaller)  Gauges  1.  Temperature  - 1/2"   ss coupling   2.  Pressure -    1/2" Release buoy   1.  1/2" SS rod thru hull Equalizing valve    1.  3/4" coupling Drop weight   1.  7/8" ss rod thu hull Hatch dog thu hull 1.  7/8" ss rod  Is there anything that I obviously forgot ??      All my electrical will be going through a separate viewport fitting. So far I have the front trim, hatch , but no air yet. Not sure if I want to have a small trim tank in the main cabin or not.  Brian      
_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles


  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20150813/72656ae5/attachment.html>