After today's spate of LSA discussion, I put together a quick spreadsheet to calculate various performance parameters based on the discussion and formulae on this page: http://zenithair.com/kit-data/ht-86-8.html
The straight Excel version is at: http://home.mebtel.net/~rbutterfield/KR/Stall_speed_&_performance_calculator.xls If you (or your isp) have problems with spreadsheets, the same file compressed with WinZip is at: http://home.mebtel.net/~rbutterfield/KR/sspc.zip I have entered CLmax from the stated sources for the two wings under discussion, but you can change that for other wings if desired. Constructive criticism welcome. And remember, it's worth what you paid for it (or maybe less ;-) ) I have NOT personally confirmed ANY of the data or formula in the spreadsheet, so use it at your own risk. Regards, RonB

