[PSUBS-MAILIST] Manipulators

[Alan James]

Thanks Vance,
that's shed some light on the subject.
Alan


________________________________
 From: Vance Bradley <Vbra676539 at AOL.com>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Saturday, January 25, 2014 5:42 AM
Subject: Re: [PSUBS-MAILIST] Manipulators
 


Alan,
I've seen the discussion. The smallest sub I know of with a manipulator on board is the Deepworker. No exfra tanks there. Metacentric vs CG works in all directions. Yes, you get movement and no it's not a problem in my experience. I did operate the bigger subs but also smaller ones, to include Aquarius, briefly in a DW, plus three different K-boats, so speak with some experience. You put everything you imagine on a small sub, you get a big sub. In any case, It's probably best to think of a psub as a work in progress. Get the boat done, go play, scratch head, get more work done, go play, scratch head......and so it goes.
Vance

Sent from my iPhone

On Jan 24, 2014, at 3:20 AM, Alan James <alanlindsayjames at yahoo.com> wrote:


Vance,
>a couple of people have mentioned lately the problem of the shifting of
>balance as you reach out with a manipulator & have talked about countering it with
>trim tanks. Is it a big deal if you go nose down, tail up? Possibly more of a problem working on a 
>vertical face than picking something up off the bottom. 
>Some of our subs will be a lot smaller than the working subs you were in so the problem would be 
>accentuated in our case.
>Can you give us some of your experience on this thanks & in your opinion is it worth messing
>about with the trim while operating the manipulator.
>Alan
>
>
>
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