Hi Joacim,

> My sources:
> "CH-47 Theory of Operation" which can be downloaded (beware: >50MB!)
> from: http://www.chinook-helicopter.com/Publications/Publications.html
> (page "5-9", p. 232 in the pdf)
> And a Boeing drawing of a somewhat inconventient size (6.6M):
> http://www.chinook-helicopter.com/Drawings/Structure/Images/CH-
> 47D_Drawing.jpg

Now thats a good resource! Thanks for the links. :)

Wim



On 12/20/06, Joacim Persson <[EMAIL PROTECTED]> wrote:
>
> Wim,
> The "ch47" in cvs is only a concept demonstrator of a tandem helicopter.
> Hardly any numbers there represent a real Chinook. I'm fiddling with
> another configuration.
>
> On Wed, 20 Dec 2006, wim van hoydonck wrote:
>
> > blade mass -> 111.6 [kg]
>
> This is different from the blade mass I am using: 357 lbs ~= 162 kg
> An upgraded blade perhaps? Composite material technology hasn't exactly stood
> still in the last 20 years.
>
>
> > blade twist -> -9.14 [deg]
>
> This is also different from the data I've got: -12° twist.
> But from the B or C model and on, Boeing has been using assymetric airfoils
> on the ch-47's. I'm not sure the -12° remains that under load...
>
> My sources:
> "CH-47 Theory of Operation" which can be downloaded (beware: >50MB!)
> from: http://www.chinook-helicopter.com/Publications/Publications.html
> (page "5-9", p. 232 in the pdf)
> And a Boeing drawing of a somewhat inconventient size (6.6M):
> http://www.chinook-helicopter.com/Drawings/Structure/Images/CH-47D_Drawing.jpg
>
> > and some mass & moment of inertia values:
> > mass -> 14968.6 [kg]
> > ixx -> 50386.3 [kg*m^2]
> > iyy -> 273536 [kg*m^2]
> > izz -> 257685 [kg*m^2]
> > ixz -> 19838.3 [kg*m^2]
>
> Ah, thank you!
> Now I only have to figure out how make use of inertia data in Yasim. ;)
>
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