I have gone to some of the blade designs and profiles of the blade which suits my requirement. But, once after entering the Theoretical calculation, I was stuck in the determination or the Justification for the Magnitude of Pitch mentioned in the Blade.
Example: I have taken the propeller of size 10 inch and 4.5-inch pitch value, Some blogs suggested to have a pitch of 0.2 times of the propeller dia for stable and efficient flight. But they didn't reveal how it affected the efficiency or why they stated those values...?