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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