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RE: A sub question
The sub I am designing has two thrusters with 360 degree freedom on
opposite sides of the hull. I could still make it slightly positive and
simply use the thrusters to counteract the bouyancy when stopped. The
problem is this would tend to raise/stir the silt. Maybe a reasonable
tradeoff.
> ----------
> From: Jon@huv.com[SMTP:Jon@huv.com]
> Sent: Wednesday, September 09, 1998 12:59 PM
> To: personal_submersibles@psubs.org
> Subject: Re: A sub question
>
> On Wed, 09 Sep 1998 15:11:41 -0400, "Alan D. Secor"
> <secor@btv.ibm.com>
> wrote:
>
> > AUVs have the same problem BUT are they positively buoyant?
>
> Well, the one I'm building is :-) Not as positively buoyant as a
> manned sub
> like Deep Flight, but it will float up if it stops.
>
> > I imagine they
> > can stop or go slow to avoid an object without floating to the
> surface.
>
> Positively buoyant subs can stop too, they'll just start floating up
> if you
> do. That's a pretty reasonable tradeoff for collision avoidance. They
> can
> also turn, angle up or down, etc.
>
> Also, just because a sub is positively buoyant, doesn't mean it has to
> float to the surface everytime it stops. It will float up, yes, but as
> soon
> as you start moving again and establish flow across the fins you're
> back in
> control again.
>
> Later,
> Jon
>
> --------------------------------------------------------------
> Jon Hylands Jon@huv.com http://www.huv.com/jon
>
> Project: Micro Seeker (Micro Autonomous Underwater Vehicle)
> http://www.huv.com
>