Hello,

I was wondering what a prop that has higher numbers means compared to smaller numbered props? For an example, I have a 5 x 5 prop, and I also have a 6 x 3 prop. Which numbers represent thrust or power and which number represents speed?
Would the 6 x 3 perform better on a 400 motor then a 5 x 5?

Any info would be very helpful, thank you ;o)