[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PSUBS-MAILIST] [Fwd: take some time and view my web sites...]
Thanks for some real good feedback. I would like to
point out, though, that by fly-by-wire I meant using
the electric drive motors directly. If it is
all-electric then you can upgrade from switches to PWM
via potentiometer, to digital, as you see fit or can
afford. For instance, you can use a simple 555 timer
IC with a potentiometer a couple of caps and a FET and
get a PWM with dial-a-speed ability for under $10.
Cheap upgrade, reliable, can be built by a monkey, but
it has to be all-electric for this to be viable. So,
that is all I meant.
I would also like to launch from pontoons. I would
like a simple, cheap U-shaped pontoon vessel that has
a charging generator and compressor on it. The sub
would pull out the front of the pontoon vessel and
dive, reversing this to re dock. The docking mechanism
would be simple channel or heavy angle iron with
catches.
Warren.
--- atozed@juno.com wrote:
> Warren, you are sure right about "vapor-ware".
>
> My two bits for OSS:
> Two man, choice of electric (with PWM) outside or
> hydraulic (with or
> without PWM), flat acrylic, flooded lead acid
> battery, up to 4,000 kg., 4
> knots is plenty, a couple scuba tanks for HPA,
> unscrew a bolt to drop
> ballast. For layout design, I prefer Ian to Thijs.
> I vote against dive planes (most psubs will want to
> hover), and fly by
> wire (cost and complexity), built in trailer
> (anybody like theirs?)
> I know my sub's 4 foot diameter, 10 foot length is
> larger that OSS
> contemplates, but let's not underestimate the
> advantages: easy to work
> on, only one pressure hull. Skip 3.1 and 3.3.
> The spec sheet's 4x1 meters makes me want to trade
> some of that length
> for more beam.
> As someone here suggested: lie down in a pipe for a
> couple hours before
> you buy your cylinder.
> I know many people start, few dive. So keep it
> simple enough to get in
> the water quickly, then add the rebreather, maybe
> fly by wire someday.
> -Peter Korwin
>
>
> On Fri, 3 Dec 2004 19:59:06 -0600 "Adam Lawrence"
> <adteleka@vzavenue.net>
> writes:
> > For whatever this is worth, I can do all the
> calculations and
> > optimize the material for the complete hull. I
> suppose you guys need to
> agree on
> > a few other things first though.
> > I vote two man, 500 ft.
> >
> > Adam
> >
> > ----- Original Message -----
> > From: "Dave Everett" <deverett@idx.com.au>
> > To: <personal_submersibles@psubs.org>
> > Sent: Friday, December 03, 2004 6:27 PM
> > Subject: Re: [PSUBS-MAILIST] OSS Show your hands!
> >
> >
> > > At 10:56 AM 12/4/2004, you wrote:
> > >
> > >>Dang, I sent this e-mail a few days ago and it
> > >>vanished! Here is the gist of it:
> > >>
> > >>I am concerned that the OSS project may have
> lost
> > >>sight of one initial request, which was a
> two-man
> > >>option. I would like to see a showing of hands
> on this
> > >>subject. How important is a two-man option? How
> much
> > >>money is the option worth?
> > >>
> > >>If we want a two-man option, will we be able to
> get it
> > >>from the Thjis hull, or will we need to look at
> Ian's
> > >>hull again? If speed is not a concern, we man be
> able
> > >>to simply increase the girth of the Thjis hull,
> which
> > >>would make for a very simple option.
> > >
> > > Although I was a member many years ago, I only
> recently rejoined
> > so I can't claim I've been along all throughout
> this process.
> Nevertheless,
> > here are my thoughts.
> > >
> > > I understand the interest in 2-man, being able
> to share the
> > adventure. I don't know how it impinges on safety
> or cost. My guess is
> it is
> > much cheaper than building 2 subs. I am concerned
> by the cramped nature
>
> > though. One sitting one laying down. I thought the
> biplane arrangement
>
> > might be better, but with the rear passenger in a
> slightly higher tower
> so
> > both have a decent forward view.
> > >
> > > My personal vote is for 1 man, but I'm happy to
> help out any way I
> > can.
> > > Electronics, CAD (I have access to Solidworks,
> that's what I used
> > to mock up the 1 man sub I posted to Moki)
> > >
> > > I'm keen on electronic motor controls. As to
> planes and tanks, it
> > seems mechanical is the safest.
> > >
> > > Dave Everett
> > >
> >
> >
> >
>
-------------------------------------------------------------------------
> -------
> >
> >
> > >
> > > ---
> > > Outgoing mail is certified Virus Free.
> > > Checked by AVG anti-virus system
> (http://www.grisoft.com).
> > > Version: 6.0.804 / Virus Database: 546 - Release
> Date: 11/30/2004
> > >
> >
> >
> >
> >
> >
> >
>
************************************************************************
> >
>
************************************************************************
> >
>
************************************************************************
> > The personal submersibles mailing list complies
> with the US Federal
> > CAN-SPAM Act of 2003. Your email address appears
> in our database
> > because either you, or someone you know, requested
> you receive
> > messages
> > from our organization.
> >
> > If you want to be removed from this mailing list
> simply click on
> > the
> > link below or send a blank email message to:
> > removeme-personal_submersibles@psubs.org
> >
> > Removal of your email address from this mailing
> list occurs by an
> > automated process and should be complete within
> five minutes of
> > receipt
> > of your request.
> >
> > mailto:removeme-personal_submersibles@psubs.org
> >
> > PSUBS.ORG
> > PO Box 311
> > Weare, NH 03281
> > 603-529-1100
> >
>
************************************************************************
> >
>
************************************************************************
> >
>
************************************************************************
> >
> >
> >
>
>
>
>
************************************************************************
>
************************************************************************
>
************************************************************************
> The personal submersibles mailing list complies with
> the US Federal
> CAN-SPAM Act of 2003. Your email address appears in
> our database
> because either you, or someone you know, requested
> you receive messages
> from our organization.
>
> If you want to be removed from this mailing list
> simply click on the
> link below or send a blank email message to:
> removeme-personal_submersibles@psubs.org
>
> Removal of your email address from this mailing list
> occurs by an
> automated process and should be complete within five
> minutes of receipt
> of your request.
>
>
=== message truncated ===
__________________________________
Do you Yahoo!?
Yahoo! Mail - Helps protect you from nasty viruses.
http://promotions.yahoo.com/new_mail
************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003. Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.
If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
removeme-personal_submersibles@psubs.org
Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of receipt
of your request.
mailto:removeme-personal_submersibles@psubs.org
PSUBS.ORG
PO Box 311
Weare, NH 03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************