Chapter 4:
Designing Wings
VSP User Manual
17
Version 1.7.92
Total Planform
In this pane the user sets the planform of the wing as a whole.
Span, Projected Span, Chord, Area:
These four parameters affect each other but can all
be changed to shape the entire wing.
Aspect Ratio:
Cannot be set but is affected by a change in the span, projected span, or
chord.
Sweep Offset:
Choose an angle from -85 to 85 degrees.
Foil Tab
The Foil tab is shown on the following page. The features on that tab are
described below.
Airfoil:
Choose which section’s airfoil is to be modified.
Name:
Although this field does not accept input data from the user, the displayed data
will change as the parameters below it are changed. For example, selecting NACA 4-
series from the drop-down box and changing the Camber, Camber Loc, and Thick sliders
will change the name of the NACA airfoil that is displayed in this field. This allows
designers to see which airfoil name corresponds to their selected parameters, or assists in
quickly setting the shape of the airfoil to be used if the name of the airfoil is already
known.
Invert Y:
This button inverts the airfoil about the Y axis, and can be toggled on or off.
Type:
Set the 2D airfoil shape. There is a drop-down list to choose the airfoil type.
Read File:
There is an option to import an airfoil file with an “.af” extension. These files
define points that VSP will spline to make the curves of the airfoil.
Adjustments:
Below the drop-down box and
Read File
button are parameters that may
be changed to modify the selected airfoil. Which parameters are active will depend on
the type of airfoil selected.
Note:
At no time will all of the slider bars be active simultaneously.
