prop size?

[bit]

Thanks Rick
Excuse if advantage of your patience.
If you look at the attached file and give me some other advice ...
Thank you

[Guest625101138]

Originally Posted by bit

Thanks Rick
Excuse if advantage of your patience.
If you look at the attached file and give me some other advice ...
Thank you

You need to tell me what advice you want. If you want to check the data you could compare with Wageningen series data.

The prop is very large and slow revving for the power. Also for a practical prop you would need much larger cord and heavier section at the hub. Efficiency is low for such a large diameter. It will have quite high EAR. Blade aspect is about 2. You could possibly reduce the EAR by operating at higher angle of attack and still have blades that can be made strong enough.

The hub for a prop of this size will be much bigger than you have. At least 0.2m and maybe even 0.3m.

Rick W