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RC-Tester
10-24-2005, 07:42 AM
Hi,
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:
http://www.badcock.net/motorcalc/

Rod

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!

ron_van_sommeren
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:
http://translate.google.com/translate_t