How to get a more stable flight - no need to trim the helicopter each flight.

RC ERA C189 MD500 Hughes: https://www.banggood.com/custlink/KKD...

For Using a multi Protocol Radiomaster radios that have E129 and sub protocol C186. Not supported by Atmega328p modules.
you can use the following channel assignment

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
A E T R Take off/Land Emergency Trim A Trim E

Goosky S1 Legend RC Helicopter: https://rb.gy/kfrl4

Radiomaster TX 16S: https://bit.ly/2ZKxTeF
Goosky S2 Legend Helicopter: https://bit.ly/3Jgama7

FLYWING FW450 V2 Helicopter: https://www.banggood.com/custlink/Gm3...
FLYWING FW450 V3 Helicopter: https://www.banggood.com/custlink/3GD...

RC Hoonitruck Car: https://www.banggood.com/custlink/vGD...

RC Drift Car: https://www.banggood.com/custlink/mmm...

Eachine EC35 RTR Flameline 1/14 2.4G 4WD 30km/h RC Car Drift LED Lights w/ Gyro Full Proportional Vehicles Models: https://www.banggood.com/custlink/mmm...

FLYWING FW450 V2 Helicopter: https://www.banggood.com/custlink/Gm3...
FLY WING Bell 206 Helicopter: https://bit.ly/3rqR2Nq
Eachine E160 Mini Helicopter: https://bit.ly/2XIaF7a
XK K100 3D Helicopter: https://bit.ly/38piSDh
Eachine E130 Helicopter: https://bit.ly/2U2du0F
ALZRC FAST X360 3D Helicopter: https://bit.ly/36raBxH
XK K130 Helicopter: https://bit.ly/37DgHfe
XK K110 Helicopter: https://bit.ly/3i5szZJ
XK K123 AS350 Scale RC Helicopter: https://bit.ly/30FnXmA
EUROCOPTER EC145: https://bit.ly/34F5VSj
OMPHOBBY M2 Explore Helicopter: https://bit.ly/2YaWsQv
OMPHOBBY M2 EVO
iFlight Nazgul5 Evoque F6D Deadcat HD: https://www.banggood.com/custlink/3Kv... Chimera7 Pro V2 HD 6S: https://www.banggood.com/custlink/3vv...