Quiet LKTR120(mod version) 120mm / 2" 2.4" / 1304 4000KV 2S-4S motor

By Mio on Apr 29, 2022

3  148  0

Upgrade my old LTKR120 for motor and flight controller.
I use 1304 4000KV mortor and 2 inch 5 blade props. It's almost silent for 3S 850mah, but uses 50% throttle for hover.
If choosing 3 inch prop, battery can use 4S 18650 3500mah for flying long range or use 4S 1000mah for racing.

The prop noise
3" > 2" > 2.5"
So current 2.5" prop is the most quiet and uses 38% throttle for hover(3S 850mah).

Upgrade to bigger 19mm camera, so the frame need to increase height to 20mm
Therefore, the props need to decrease to 2.4"



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