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RE: [PSUBS-MAILIST] Launch Retrieval Transport



Why add all the complications of a tracked vehicle, wheels are much simpler if you are going this route.  Either solution is only a partial solution as you still have to get to the channel through skinny water and then out to the dive site.

 

Remember that you are going to have a lot of maintenance as it is just taking care of your sub, any further mechanics added just take away from the time you could be enjoying yourself underwater in your sub.  Added complications are just focal points for failure.

 

Other people beside myself keep reminding you that any design should encourage the KISS design principle.

 

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 Brian Cox
Sent: Monday, November 06, 2006 12:50 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Launch Retrieval Transport

 

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