Re: [PSUBS-MAILIST] Launch Retrieval Transport

[MerlinSub@t-online.de]

http://www.psubs.org/pic/tank.html


"Jim Pesanka" <jpesanka@yahoo.com> schrieb:
> Hi Brian!
>    
>   I have seen old pictures of a psub with tracks somewhere before.  At this moment, I can't recall just where, but perhaps others might?  If it comes back to me I will let you know.
>    
>   Cheers!
>    
>   Jim
> 
> Brian Cox <ojaivalleybeefarm@dslextreme.com> wrote:
>       st1\:* {   BEHAVIOR: url(#default#ieooui)  }              The Track Vehicle that I had in mind would not be a part of the submersible,  the sub would rest on top and lift free when the track vehicle got deep enough.  After that it could just stay put on the floor until the sub returns,  sub settles down on track vehicle and then drives out.
>    
>   BC
>     ----- Original Message ----- 
>   From: Jay K. Jeffries 
>   To: personal_submersibles@psubs.org 
>   Sent: Sunday, November 05, 2006 14:55
>   Subject: RE: [PSUBS-MAILIST] Launch Retrieval Transport
>   
> 
>       Note:  Sent this last night but it appears to have not gone through or was restricted to size.  After multiple attempts on Joe?s and my part to get this loaded, now breaking it into 4 parts.
>    
>   Part 2 of 4
>    
>    
>   6.     Wheeled submersible
>   a)      Pros:
>   i)        Simple solution
>   ii)      Tires can be filled with water to negate buoyancy issues
>   iii)    Negates ramp issues (except where a whole exists at the end of a ramp in skinny water)
>   b)      Cons:
>   i)        If directly under the sub, increases draft
>   ii)      In a K-series submersible, if placed on the sides would significantly increase beam
>   iii)    May get mired in the muck before getting to the channel
>   iv)     If powered
>   (1)    Increase power consumption
>   (2)   Increased complication due to drive train
>   7.     Tracked submersible
>   a)      Pros:
>   i)        Negates ramp issues (especially if powered)
>   ii)      Should not get mired in muck due to increased foot print of the tracks
>   b)      Cons:
>   i)        Adds extreme complexity to a system
>   ii)      Increases drag
>   iii)    Increases power requirements and transmission if powered
>   iv)     WW II German Seeteufel was not successful
>   v)       All other applications of tracked submersibles have been powered from shore or the surface
>   vi)     Large increase in cost
>   vii)   Still have to get to the channel and dive site
>   8.     Fork Lift Launch
>   a)      Pros:
>   i)        Simple solution for launch/recovery
>   b)      Cons:
>   i)        Not all marinas/yards have a fork lift
>   ii)      Many Florida yards/marinas will not service you if you are not a regular customer
>   iii)    Launch/recovery costs quickly add up
>   iv)     Still have to get to the channel and dive site
>    
>   Respectfully,
>   Jay K. Jeffries
>   Andros Is., Bahamas
>    
>   Mankind have a great aversion to intellectual labor; but even supposing knowledge to be easily attainable, more people would be content to be ignorant than would take even a little trouble to acquire it.
>   - Samuel Johnson
>    
>    
> 
> 
> 
> 
>  
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