[PSUBS-MAILIST] Propane sub

[CWall@swri.edu]

Craig here is my answer to soome of your Emails: 

> My tentative solution, which is palatable mainly because I do not place a
> premium on the time it takes to make configuration changes in operation, is
to
> use removable props and literally go over the side to change them out.  

You ever was at sea ??  50 hours away from home ? Alone, on a wet deck
with
one hand on a propeller ? During normal offshore conditions ?   

********************

God God you're silly!   I have no intention of being "at sea".  This will be
uesd, as I previously stated, mostly in lakes and never far from shore.  You
are committing the fallacy of attacking a "straw man".

***********************************************

> I anticipate launching and
> recovering unassisted and at uninproved facilities like beaches.  I place a
> premium on low trailering weight. 

On another Email you told you want to fill the ballast tanks with water
before you put 
the sub out of the water to prevent that the propane goes down the
street, right ? 
I found it difficult on most beaches and ramps  to get my small sub out
and in 
the water with the tanks complety filled with air.. Your sub with the
tanks full of 
water..

*******************

Incredible.   Do you really think I'd try to lift full ballast tanks out of the
 water?  Don't you understand the concept of simply purging the ballast tanks
with water but leaving the vents open so they can drain as the boat comes out? 
  Are you REALLY that stupid?

Yes, I understand what free surface effects are- and again, you frickin' can't
read, because I already said I'd have positive floatation with completely
flooded ballast tanks, and use only trim ballast for the dive.

Yes, I know the limitations of weather prediction.

100 miles from home is not necessarily 100 miles from safety.

My experience in small boats is extensive, and as with aviation, I know what my
 personal operating envelope is and how to stay within it. Again, you are being
 intellectually dishonest by setting up a straw man argument.

100 hours of operating does not have to be continuous- again with the
fallacious arguments!

 
 Craig Wall