Whirlwind Systematics presents the

Plane Performance Predictor

This is a fairly simple attempt at a program to help design/analyze (electric) planes. It will open its own window. If you have less then an 800 x 600 display, then you may want to try the JDK 1.0 version. Please be patient as This may take a little while to load, up to several minutes. Java must be enabled to use the program on this page. Java 1.1 is required, but if this does not work for you, try the JDK 1.0 version. Feel free to bookmark this page.

If your browser recognized the applet tag, you would see an applet here.

This page and this program are very preliminary. All suggestions and comments welcome. Complaints will be ignored. This program was not ment to replace ElectriCalc or MotoCalc but as a programming excersise and to allow more people access to some form of the performance calculations so necessary for successful electric flight.

This program compiles several formulas that I have taken from the net (such as calcul8a.xls, motor.xls (link currently down), Martin Hepperle, and the articles on the Aveox site.), from Bob Kress's article Electric Flight Model Design in Flying Models, and Model Aircraft Aerodynamics by Martin Simons. All formula are approximations - some are better than others. The current, voltages, powers, and RPM are all fairly accurate. Others less so.



All suggestions are quite welcome. A source for a good approximation formula for climb angle, climb rate, and drag and/or max speed would be especially welcome.

I do take requests for items to add to the menus. All decisions as to what to include are entirely mine.

This page brought to you by William Sears of Whirlwind Systematics
Please address all questions or suggestions to me.

This program is free to use, but you may not copy it, modify it, or sell it in any way. Feel free to link to this page from your own site.

If you wish to support this program, I do web pages, or you can buy Garrison Aerodrome kits (I help make them), or donate any models or modeling items you wish. I mostly do this stuff to support my R/C hobby anyway.