OCALA, Florida, July 7, 2003 - Hanley Innovations, a small business specializing in aerodynamics and fluid dynamics software development for education and industry, announced today the release of Dr. Hanley’s Aerodynamics: The Wing-Tail Calculator. The Wing-Tail Calculator.

The Wing-Tail Calculator was developed using a vortex lattice (vortex rings) CFD method. The program is quite powerful and yet easy-to-use.

Wing-Tail can be used to: 1. Compute lift-drag coefficients for an isolated wing 2. Compute lift-drag coefficients for a wing-tail system 3. Determine neutral points for wing-tail system 4. Compute trim angle 5. Compute the aerodynamic coefficients at the trim angle 6. Simulate ground effect

The Wing-Tail Calculator might also be used to model the lift and vortex drag on a keel-rudder system or perhaps a double sail configuration. In these applications, however, one half of the wing-tail 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).

Wing-Tail 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 x-axis. 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 Wing-Tail 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, lift-drag-ratio and the minimum sink rate.

Wing-Tail can be used as an educational aide for learning about 3-d 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 wing-tail 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=19649332

More information can be obtained from: http://www.hanleyinnovations.com/wingtail.html

About Patrick Hanley

Dr. Patrick E. Hanley, is the owner and founder of Hanley Innovations, a small business specializing in aerodynamics and fluid dynamics software development for education and industry. Hanley earned his B.S. degree in aerospace engineering from Polytechnic Institute of New York (Summa Cum Laude) and his S.M. and Ph.D. degrees from the department of Aeronautics and Astronautics of Massachusetts Institute of Technology (MIT). He also completed a minor in the area of management of innovation and technology at MIT's Sloan School of Management. As owner of Hanley Innovations, Hanley has authored a number of software packages including VisualFoil, WingAnalysis, ModelFoil, AirfoilBrowser, Dr. Hanley's Science Graphs, Aerodynamics in Plain English, Center of Gravity Calculator, SmockSoft and PerpeturalPaper for Smocking.

Dr. Hanley can be contacted at: PO Box 831514 Ocala, FL 34483-1514 Telephone: (352) 687-4466 email: hanley@hanleyinnovations.com WWW: http://www.hanleyinnovations.com