[Skidz]

If I want to replace a 2 blade propeller with a 3 blade propeller, lets say for arguments sake a 2 blade 12" x 6".

Theoretically I am increasing the load on the motor by adding the extra blade.

Or am I?

Am I just sharing the same load over a larger area?


Gazz

Ok, try this for information.... http://www.dc-rc.org/pdf/Model%20Propell...rticle.pdf
Did my head in initially but it supports Kieran's position on diameter would reduce if no of blades increased (assuming thrust remains the same). It also supports Rob's position that adding another blade increases the thrust and the load if the diameter stays the same (and provided the electrics can support the extra demand). Changing the pitch will move the goal posts again.