AMA Wing Sticker MS Word Version

This is a copy of the AMA wing sticker that should be placed inside your plane. This sticker provides information about you so you may be contacted in the event your lost plane is found. The sticker also provides a warning concerning fuel flammability and a warning against unauthorized possesion.
The file is in PDF format (you will need Adobe Acrobat Reader to view and print it) or Microsoft Word. The sticker is slightly narrower than a strip of standard clear packing tape. Print the sticker and fill in the contact information. Place the sticker on a clean surface of the wing inside the fuselage or wing saddle area. Then place the strip of clear packing tape over it, ensuring that the tape overlaps equally on both the right and left sides.

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This is an extremely versatile general purpose conversion program. It converts imperial to metric, UK gallons etc to USA. Save a copy on your Desktop - you will find it invaluable! 

This is a '.zip' file, you will need WinZip or similar to extract it.

This is Lee Van Tassel's versatile 'Design Calculator' It will help you determine the ideal C.G. position for swept wings, biplanes, even canards -  and a lot more!   Requires MS Excel.

This is a '.zip' file, you will need WinZip or similar to extract it.

Having determined where your C.G. should be, build this inexpensive device to find out exactly where it is.  Requires MS Word.

This is a '.zip' file, you will need WinZip or similar to extract it.

This freeware program from Gyles AeroDesign will calculate the lift coefficient for your model given the four input values - altitude, airspeed, weight and wing area.

This program by Mike Sayer is intended to predict the weight, wing loading and centre of gravity of a model aircraft based on a description of the parts. This list of parts may consist of: hardware, e.g. motor, receiver, fuselage sheet, longerons formers, etc., wing spars, sheeting and ribs covering. Hardware parts are entered as a weight and position, all other parts are entered as dimensions and a density value.

NACA Airfoils is a shareware program from KelComp (Frank Kelly, President) which can print any NACA 4 or 5-digit airfoil to any scale with excellent precision on an ordinary dot matrix, ink jet, or laser printer. It is intended for use in model airplane design. Provision is made for camber, center of camber, chord, skin thickness, spar and leading edge dimensions (in inches or millimeters). A tapered wing routine facilitates the boring but necessary calculations for a tapered wing. The program can display pairs of airfoils on the screen for comparison and can generate files compatible with ModelCAD, DesignCAD or Foiled Again!! (KelComp is not affiliated in any way with either company.). It also will display outlines of the members of an airfoil library in ModelCAD or Foiled Again!!

This is a '.zip' file, you will need WinZip or similar to extract it.

There is an excellent Excel worksheet that has all the formulas for calculating the required torque requirements, offsets, differentials, and so on. More information that you probably care to know. However, its easy, its free, based on sound engineering principals, and much better than a simple guess.  The spreadsheet allows you to enter various parameters regarding the size of the control surfaces, estimated maximum aircraft speed, degrees of deflection, and control geometry. From this, it will calculate the estimated torque which will the servo will be required to produce to maintain this deflection. The results are listed in a table which shows the torque requirements through various speeds and control deflections.  This spreadsheet was written by Craig Tenney. Requires MS Excel.

This is a '.zip' file, you will need WinZip or similar to extract it.

A very nice utility from Barry's Model Aircraft Page.  This utility calculates the thrust produced by an engine given a set of parameters such as prop type, diameter, and pitch, number of blades, engine speed, and air density.  Calculates the load, speed, and horsepower.  Also has a tab that calculates wing load and thrust to weight ratio.  

This is a '.zip' file, you will need WinZip or similar to extract it.

This freeware program from Gyles AeroDesign will calculate the turn radius and g-loading for your model given the bank angle of the aircraft and some basic aircraft data. You can also calculate the required bank angle for a given turn radius.

Winfoil is a an aeronautical computer aided design tool from Winfoil Aeronautical Design Software for designing, analysing and modifying model aircraft. It also provides the ability to print the design (wing ribs, fuselage sides, wing and tail plans) to any Windows supported printer and export design components to DXF files for import into other CAD programs such as AutoCAD. It is typically used for Radio Control Gliders, Powered Aircraft (Scale,Sport and Pylon). Winfoil is Shareware. This enables the user to try the product before buying it. Registered users receive one free upgrade to the next major release. Minor updates are available free from this web site.

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This is a '.zip' file, you will need WinZip or similar to extract it.