Fwd: Auto-discard notification

[Andreas G]

---------- 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.

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[brunians]

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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