Blade Carving Question

[edy252]

hi all....

i'm intending to carve 3 blades (1.3 m each)....and i need them to have a TSR of 7.....how should i carve the blades (ie. how to know the width, drop, etc...) so that they'd have this TSR

THX IN ADVANCE

[BT Humble]

i'm intending to carve 3 blades (1.3 m each)....and i need them to have a TSR of 7.....how should i carve the blades (ie. how to know the width, drop, etc...) so that they'd have this TSR

Download this spreadsheet and plug the appropriate numbers in:

http://www.otherpower.com/images/scimages/236/BladeDesigner.xls

Or if you prefer it in StarOffice/OpenOffice format:

http://www.otherpower.com/images/scimages/236/BladeDesigner.sxc

BTH

[bobn]

I think you will find this blade design program simpler to operat  and significantly better than the one previously mentioned.

http://www.alton-moore.net/wind_calculations.html

a back to back comparison  will show you a siginificant difference in blade planform.

Ed from windstuffnow also has a program available for a small fee.

BobN