9.6: Input Angle for Geometric Twist
Especially with flying wing constructions it is necessary to twist a wing in
order to constrain a definite lift distribution.
Click the folder button 'Geometric Twist'. The wash angle will be displayed in
the input field 'Wash Angle [°]'.
Valid values lie between -45° and +45°.
The wash angles centre of rotation lies at the leading edge.
Near the input field are Up/Down-buttons located. They can be used to change
the wash angle with mouse clicks.
A click on the right mouse button pops up a menu to set the increment between 0.00001°
and 1°.
The following picture shows three wings. The left wing has no geometric twist,
with the middle wing both segments have -30° geometric twist and with the right
wing a geometric twist of +30° is implemented.
The shown angles are strongly exaggerated, normally geometric twist angles
range between 2° and 10°.