View Full Version : Motor / power train performance calculator

10-24-2005, 07:42 AM
Christian Persson has now released his *FREE* motor / prop / gearbox peformance calcultaor at www.elektromodellflug.de/datenbank (http://www.elektromodellflug.de/datenbank) -> "Antriebsrechner" (upper right corner).

This is probably one of the best, and most complete, set of public domain motor analysis tools that I have seen. Based around a Microsoft Excel (or compatible) spreadsheet this includes a propeller thrust and power database, a motor database, and tools for predicting home made motor performance. With these tools it is possible to predict the performance of motor and prop combinations - even with custom motors!

Some more detailed English Instructions and the software are available at:


Matt Kirsch
10-24-2005, 01:14 PM
If you can read German, it looks like there's a lot of useful information on that site. Thanks for the link!

10-24-2005, 11:08 PM
Once you opened the spreadsheet, you can switch between German and English. For the other information (lots!!) on that site: