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RE: [PSUBS-MAILIST] Launch Retrieval Transport



The Navy had a unit called RUM (can’t remember what the acronym stands for) that was an unmanned tracked vehicle powered from the beach or the surface.  It was used for investigation of the effects of nuclear blasts on ships that sank as a result of the explosion, coastal engineering, and other salvage work.  The unit was featured regularly in Popular Science, Popular Mechanic, and Sciences & Mechanics.

R/Jay

 

Respectfully,

Jay K. Jeffries

Andros Is., Bahamas

 

It is the mark of an educated mind to be able to entertain a thought without accepting it.
  -
Aristotle

 

 

 

 


From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Juergen Guerrero Kommritz
Sent: Monday, November 06, 2006 7:41 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Launch Retrieval Transport

 

Hi Jim
I remember that in the Psub page was an article about a submarine with tracks build in the 50. But now I can not find it any more.  It was from a magazine Popular mechanix or mechanix illustrated something like that.  It was a nice sub. 
An other very succesful submarine with wheels was the Argonaut from Simon Lake. It was the first submarine to sail more than 1000 Km.  It had giant wheels.
The atomic research submarine Nr 1 from the US Navy has also wheels filled with alcohol (Ethanol).  They use them to roll on the deep sea but not to put the sub in the water.
Best wishes
Jürgen

Jim Pesanka <jpesanka@yahoo.com> wrote:

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:

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 -----

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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