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RE: [PSUBS-MAILIST] OSS spec sheet
OK. All reasonable. So tell me what effects on the pressure hull you envision?
It would seem to me that this would make very little difference to the pressure
hull. If so, then we need to mull over the thrusters but, more importantly,
move forward with the pressure hull design.
Warren.
> I agree with Ray. A single screw is impractical for a small psub, unless
> you use a bow thruster and vertical thrusters along with it.
>
> I guess the question to be asked is: What is it for? If you want to
> travel some distance, then a stern screw is needed, with a bow thruster
> at least, if not vertical thrust (this could be done with ballast tanks,
> but can be slow). If you only want to travel a short distance and mostly
> just want to look around then 6 thrusters like an ROV would be best, two
> forward facing, two vertical, one bow and one stern, giving excellent
> maneuverability and control.
>
> Also when considering speed and maneuverability, remember the water you
> dive in is almost never static. There are always currents to deal with,
> and you can get into all kinds of trouble if you dive in a current you
> can't make headway against.
>
> Just my quick thoughts.
> Ron
>
>
>
> -----Original Message-----
> From: owner-personal_submersibles@psubs.org
> [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Ray Keefer
> Sent: Tuesday, January 14, 2003 11:05 AM
> To: personal_submersibles@psubs.org
> Subject: Re: [PSUBS-MAILIST] OSS spec sheet
>
>
> Hi,
>
> > Need to resolve:
> > 1. Steerable thrusters or single stationary thruster
> > with rudder and dive planes.
>
> Rudder and dive planes really only work if you are at speed. A PSUB is a
> poke along and look type of vessel. I would suggest steerable thrusters.
>
> > 2. Style of viewports (my prefered is flat acrylic)
> >
>
> Flat is simplest and cheapest.
>
> Regards,
> Ray
>
>
--
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