The WingTail Calculator might also be used to model the lift and vortex drag on a keelrudder system or perhaps a double sail configuration. In these applications, however, one half of the wingtail will model the actual device while the other half can model a surface image. (note: no explicit calculations are made in the software for this modification).
WingTail accepts the following inputs for both the wing and tail: span, taper, sweep (forward and back), airfoil (just 4) and angle. The tail can be placed at arbitrary locations along the xaxis. The user must also enter the center of gravity location, profile drag at Cl=0, airplane weight & speed and whether or not to include ground effect in the calculations.
The WingTail Calculation will compute lift, drag and moment coefficients, lift, drag and moment forces, location of the neutral point, mean aerodynamic chords, Cl_alpha, Cm_alpha, liftdragratio and the minimum sink rate.
WingTail can be used as an educational aide for learning about 3d wings, induced drag, sweep, taper and longitudinal stability. It has 4 different airfoil for experimentation purposes. It is perfect for an introductory aerodynamics course, flight dynamics or aircraft conceptual design.
The introductory price of wingtail is $29.00. The price at the end of the introductory period will be $45.00. Please purchase the software using the following url:
http://secure.emetrix.com/order/product.asp?PID=19 649332
More information can be obtained from:
http://www.hanleyinnovations.com/wingtail.html
