[PSUBS-MAILIST] (no subject)

[Joe Perkel]

Hank,

What I don't like about deep water remote testing, is the fact that we are testing against the worst case scenario, a sub full of water. The good news of course being unmanned.

Therefore to my mind we must be prepared for that worst case scenario, meaning being in the best possible position to recover the sub. That means heavy lifting doesn't it?

Sending a grapple down a line requires 100% success in making contact, is that assured? I don't know I've never done it.

So if I had the means to send it down on a cable, that's what I think I'd do.

Joe



On Feb 7, 2014, at 6:08 PM, hank pronk <hanker_20032000 at yahoo.ca> wrote:

> PROBLEM, now that I am getting Alec's auto pilot, I run the risk of the sub surfacing violently if it develops a leak and the water sensor tells the sub to surface.  If I have my steel barge above Gamma there could be a very serious collision.  The other option is to forget the barge and send Gamma down with a rope attached as a locator and a way to slide a cable down to retrieve it.  The rope only needs a rubber float to locate it.  I would put a second auto pilot in that relies on a battery going dead to make it surface with a separate hp source.
> What to do hmmm
> The other option is use the auto pilot from Alec without the water sensor and have the barge over Gamma with the cable between.  Then there is a safety if the cable fell off or what ever, and if the sub fills with water I can winch it up.
> Hmm , what do you guys think.
> Hank
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