Re: [PSUBS-MAILIST] R300 dive at Lake Amistad

[Jon Wallace <jonw@psubs.org>]

Nice job, Cliff.  I'll add the link to the web site when I have a chance.
Can you provide any info on the tow to the dive site?  You said it was 
about a mile; how long did it take?  How much gasoline chewed up by the 
towing vessel?  Horsepower of the towing vessel?  Any problems on your 
end...porpoising, weaving, etc.

Jon



Cliff Redus wrote:
> Over the weekend, I took my boat out to Lake Amistad near Del Rio 
> Tx.  Nine dives were completed and we qualified two new pilots.  As I 
> have not completed the max depth unmanned test, the deepest dive was  
> 60 ft.  As it was a cold, windy and overcast day, the visibility was 
> not all that great.  The dive site was about a mile from the boat ramp 
> so we towed the psub over to the dive site to conserve batteries.  The 
> lake was a bit choppy.
>  
> Things got a little interesting on the last dive in which we launched 
> off a anchored 23 ft fishing boat.  I had a bow line on the psub as a 
> safety precaution.  While I was on the bottom, the wind came up and 
> caused the support boat to loose it anchor and begin dragging me 
> across the bottom.   At that time I decided to ascend to see what was 
> going on.  At about 36 ft, the psub stopped ascending.  I kept 
> adding more and more air to the VBT and still the boat would not 
> resume it ascent.  I then started blowing air into my MBT which did 
> the trick and I surfaced.  Upon surfacing, I was very surprised to see 
> that the wind had blown the tethered boats one mile down wind.  The 
> reason the ascent was halted was that when the psub got off the 
> bottom, the support boat really started to pick up speed and psub 
> wings and control surfaces were holding it in a horizontal glide 
> pattern.  My take away lesson was not to dive the boat tethered to 
> another boat in windy conditions.  All in all, it was a fun day.
>  
> Attached is YouTube link of the dive 
> http://www.youtube.com/user/drRedus#p/a/u/0/6O-PeYlt26c 
>  
> Cliff




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