[PSUBS-MAILIST] PC-12

[Joe Perkel via Personal_Submersibles]

Very cool Vance! Nice things you've done!

I joined the Navy for some adventure, ...went to Tennessee and Texas!

Joe
On Friday, May 9, 2014 5:54 PM, via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
  
Joe, 

 
That's the gas flare for the Frigg Field in the background, which was in the North Sea oil patch somewhere between the Shetland Islands and the halfway point to Norway. Water depths on that side ran in the 350 to 450 foot range. Sometimes a little less, but rarely more until you got closer to Scandihoovia. 
 
We did all the initial bottom surveys prior to platform deliveries, then made lots of installation inspections, insurance videos, engineering verifications, and so on. Plus diver lockout support for pipeline hook-ups and like that. Later on, we went back to clear all the exploratory well heads with explosives, which was somewhere between tedious and oh shit, mostly. 

 
The motion you see or suspect is a little exaggerated, but not unexpected at that point in the launch. We used two pairs of fifty-thousand pound constant tension winches to control side motion and the leverage is at its worst way out at the drop point. By the way, anyone know how I can tell this is a launch? 
 
Vance


-----Original Message-----
From: Joe Perkel via Personal_Submersibles <personal_submersibles at psubs.org>
To: personal_submersibles <personal_submersibles at psubs.org>
Sent: Fri, May 9, 2014 5:21 pm
Subject: Re: [PSUBS-MAILIST] PC-12


Vance,

Where, when, how far down, and what would you do there once you got down?

Looks like you could get quite a rough ride launching and recovery in those conditions.

Joe

Sent from Yahoo Mail for iPad  



________________________________
 From:  via Personal_Submersibles <personal_submersibles at psubs.org>; 
To:  <personal_submersibles at psubs.org>; 
Subject:  [PSUBS-MAILIST] PC-12 
Sent:  Fri, May 9, 2014 8:23:57 PM 
 

All, 
Below is a war-ready PC-12 headed down into the 
dark-wet-cold. It might even be me in the conning tower, as I had 04 and/or 05 
(depending on assignment) for a season and worked Frigg pretty often. I can tell 
it's one of the later boats because the manipulators are mounted low and there 
are small pipe rails around the battery pod hatch clamps which we didn't do on 
the earlier boats. 
Vance    
       
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