Propeller modification - leading edge notches
Anyone has read this one:
I was very interested by the leading edge notches mod.
So I've tried it today in my wind tunnel, on a APC 9x6E.
Here's a sum up of the experiment :
I've noticed no difference at all...
Does any one have a idea why ?
BTW I'm not sure how to understand the results of this mod as shown in the thesis (page 29 for the detail of the mod - results figures 40,41,42 and 64, 65).