Re: The-List Digest, Vol 14, Issue 1

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> Today's Topics:
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>   1. Fwd: Auto-discard notification (Andreas Grunewald)
>   2. Re: Fwd: Auto-discard notification (brunians@...)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 4 Jun 2009 23:16:41 +0200
> From: Andreas Grunewald <airshipworld@...>
> Subject: [Airshipworld List] Fwd: Auto-discard notification
> To: the-list@...
> Message-ID:
>        <59c4bfbd0906041416ge3ee02bj28c9fb5af86b7445@...>
> Content-Type: text/plain; charset=ISO-8859-1
>
> ---------- Forwarded message ----------
> From:?dude6935 <jake6935@...>
> To:?the-list@...
> Date:?Tue, 2 Jun 2009 18:23:32 -0700 (PDT)
> Subject:?Re: [Airshipworld List] Designing Airships - bringing our
> collective knowledge together
>
>
>
> Andreas G wrote:
> >
> > Do we need an Airship Development Software tool that helps us design
> > airships in a computer aided design approach to have an integrated
> > development environment. The question is not who will build it but who
> > can see themself using it. And who would be willing to give the input
> > in technical and business expertise regarding mathematical formulars,
> > requirements aso.
> >
> > I would love to start such a project and spearhead the Software
> > Development since I am a Computer Scientist but i would like to know
> > if you see a need for it and if you would be willing to contribute.
> > The Development model should be collaborative and the software or the
> > resources and artifacts produced should be available for free as
> > opensource so that everyone can use them enhance them and modify them.
> > Let me know what you think I could envision specialized versions for
> > designing remote controlled airships and passenger airships.
> >
> > Regards
> >
> > Andreas G
> > --
> > Editor of Airshipworld
> > --------------------------------------------------------
> > Visit the Airshipworld Blog at
> > http://airshipworld.blogspot.com
> > --------------------------------------------------------
> >
> > _______________________________________________
> > The-List mailing list
> > The-List@...
> > http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info
> >
> >
>
> I am interested in collaborating. I just setup a forum on
> smallblimps.lefora.com a few days ago for that purpose before I knew of this
> forum and thread. I can offer a lot of formulas I have come across in the
> process of codifying my blimps designs. For example you can get a good
> estimate of your volumetric drag coefficient based on fineness. Needed
> information is fineness(or length/width), the reciprocal of fineness
> (width/length), and Reynolds number based on length.
>
> =((0.172*(l/d)^(1/3))+(0.252*(d/l)^(-1.2))+(1.032*(d/l)^(-2.7)))/(Re^(1/6))
>
> or on my excel file it is
>
> =((0.172*(B32)^(1/3))+(0.252*(B34)^(-1.2))+(1.032*(B34)^(-2.7)))/(K41^(1/6))
>
> It should come out to about .002 depending on fineness.
>
> My excel file might be a good starting point if it were organized for
> someone else to easily use.
>
> --
> View this message in context:
> http://www.nabble.com/Designing-Airships---bringing-our-collective-knowledge-together-tp18236111p23843885.html
> Sent from the The Airshipworld Mailinglist mailing list archive at Nabble.com.
>
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 4 Jun 2009 17:34:06 -0400 (EDT)
> From: brunians@...
> Subject: Re: [Airshipworld List] Fwd: Auto-discard notification
> To: the-list@...
> Message-ID: <1569.72.171.0.141.1244151246.squirrel@...>
> Content-Type: text/plain;charset=iso-8859-1
>
> No market.
>
> Sounds like a fun project.
>
> But I don't think there is a market. There aren't thousands, or even
> hundreds of airship designers out there.
>
>
> .
>
>
>
> > ---------- Forwarded message ----------
> > From:?dude6935 <jake6935@...>
> > To:?the-list@...
> > Date:?Tue, 2 Jun 2009 18:23:32 -0700 (PDT)
> > Subject:?Re: [Airshipworld List] Designing Airships - bringing our
> > collective knowledge together
> >
> >
> >
> > Andreas G wrote:
> >>
> >> Do we need an Airship Development Software tool that helps us design
> >> airships in a computer aided design approach to have an integrated
> >> development environment. The question is not who will build it but who
> >> can see themself using it. And who would be willing to give the input
> >> in technical and business expertise regarding mathematical formulars,
> >> requirements aso.
> >>
> >> I would love to start such a project and spearhead the Software
> >> Development since I am a Computer Scientist but i would like to know
> >> if you see a need for it and if you would be willing to contribute.
> >> The Development model should be collaborative and the software or the
> >> resources and artifacts produced should be available for free as
> >> opensource so that everyone can use them enhance them and modify them.
> >> Let me know what you think I could envision specialized versions for
> >> designing remote controlled airships and passenger airships.
> >>
> >> Regards
> >>
> >> Andreas G
> >> --
> >> Editor of Airshipworld
> >> --------------------------------------------------------
> >> Visit the Airshipworld Blog at
> >> http://airshipworld.blogspot.com
> >> --------------------------------------------------------
> >>
> >> _______________________________________________
> >> The-List mailing list
> >> The-List@...
> >> http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info
> >>
> >>
> >
> > I am interested in collaborating. I just setup a forum on
> > smallblimps.lefora.com a few days ago for that purpose before I knew of
> > this
> > forum and thread. I can offer a lot of formulas I have come across in the
> > process of codifying my blimps designs. For example you can get a good
> > estimate of your volumetric drag coefficient based on fineness. Needed
> > information is fineness(or length/width), the reciprocal of fineness
> > (width/length), and Reynolds number based on length.
> >
> > =((0.172*(l/d)^(1/3))+(0.252*(d/l)^(-1.2))+(1.032*(d/l)^(-2.7)))/(Re^(1/6))
> >
> > or on my excel file it is
> >
> > =((0.172*(B32)^(1/3))+(0.252*(B34)^(-1.2))+(1.032*(B34)^(-2.7)))/(K41^(1/6))
> >
> > It should come out to about .002 depending on fineness.
> >
> > My excel file might be a good starting point if it were organized for
> > someone else to easily use.
> >
> > --
> > View this message in context:
> > http://www.nabble.com/Designing-Airships---bringing-our-collective-knowledge-together-tp18236111p23843885.html
> > Sent from the The Airshipworld Mailinglist mailing list archive at
> > Nabble.com.
> >
> > _______________________________________________
> > The-List mailing list
> > The-List@...
> > http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info
> >
>
>
>
>
>
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> End of The-List Digest, Vol 14, Issue 1
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