Prop Pitch and Diameter starting points?


#1

I am about to start prop testing. I will run the 100kv waterproof Alien motor at 12s. I plan to print a lot of props for testing. All ducted for safety. The prop with the most thrust will be CNC machined.

Can you recommend some starting points for pitch and diameter?


#2

Solas 0001-073-06P works well with 80kv/12s and plenty of power,

that’s 7,3 inch diameter/ 6 inch pitch … so 185mm diameter / 150mm pitch in real units :slight_smile:


#3

Hi mat. Did you do some thrust test. I have done some test you can find in this forum. Almost same setting with 8s and 100kv


#4

the only test i did was: jump in the water with it :slight_smile:
I don’t have any number, but lying on the board, quite forward to avoid taking off (so with the back of the board dragging in the water) at full throttle, it’s FAAAAAAST :slight_smile:
and if you apply the throttle when the nose is underwater, the submarine mode is scary…
see video here: 80100 direct cooling


#5

the numbers i got with this propeller and 4300rpm in air setup (TP 4070 (125A) 780KV 8S 6:1)

sorry not really long foiling number…

amp

rpm drop 28%