Hello,

I’m on planning to make a 3 inch quad for freestyle.
What size motors and kv should i use, and how much amp for the 4in1 esc
I planning to use a 4s lipo.

I did not know anything, so i build a Rotorx Atom 122 with 1408 Geprc 3600kv motors and 20 amp 4in1 esc.
Totally Atomic ? It took some getting used to but is my favorite quad now

13xx-14xx are typically motors for 3 inch. I would go 3500-4100kv. For 3 inch, I like 4100 kv more. 20A should be enough. But you want to check your motors thrust data for amp draw.

Thanks guys, what prop would you recommend?

for freestyle, i guess the hq3030x3 should give good thrust-response, the hq3030x4 even more but topend („and efficiency“) arent that well. i fly and love the hq3030x3, hq3040x3 and my new love for 3inch is the azure3060x3. i would recommend all for a try, every motor have diffrent „benefits“, pared with a personal flystyle make it even more difficult, only trys will give the experience to choose the choosen one ;-)

(27-Oct-2019, 11:58 AM)hugnosed_bat Wrote: for freestyle, i guess the hq3030x3 should give good thrust-response, the hq3030x4 even more but topend („and efficiency“) arent that well. i fly and love the hq3030x3, hq3040x3 and my new love for 3inch is the azure3060x3. i would recommend all for a try, every motor have diffrent „benefits“, pared with a personal flystyle make it even more difficult, only trys will give the experience to choose the choosen one ;-)

Thanks, i will take a look at the props.

I run BrotherHobby T1's, 1407/4100kv on my 3" Gecko. I run Gemfan 3052's and HQ 3x4x3. I seem to get more prop wash with the HQ's, but both do a pretty good job at keeping me out of the trees....

I'm using a Mamba F405 mini mk2 stack with F25 mk2, 25 amp ESC.

Deal