Flysky FS-i6X Throttle Max Issue

[krissondors]

Hello there, this is my first time using a flying a RC Plane. I made a foamboard plane and used the Flysky FS-i6X with a 30a ESC, A2212 1400kv motor, and 2s 2200mah Lipo battery.

The issue I am having is when I'm doing static testing of the throttle, I notice that the max rpm of the motor depends how fast I accelerate the throttle. If I ramp up the throttle slowly or moderately fast, the max throttle is like 70 percent of the max rpm. If I go from zero to max throttle as fast as possible, I get full power and max rpm with plenty of thrust. I tried doing the ESC calibration but it didn't seem to change anything. Am I missing something?

Thanks!

 

[luvmy40]

Try calibrating the pots on the FS-i6X. I don't remember the process on the Fly Sky but it should be easy to find a tutorial on youtube.

Found a decent short video:

Remember to use light smooth pressure on the sticks. Don't force them to the hard limit as this will effect the end points in the calibration.

 

[krissondors]

Try calibrating the pots on the FS-i6X. I don't remember the process on the Fly Sky but it should be easy to find a tutorial on youtube.

Found a decent short video:

Remember to use light smooth pressure on the sticks. Don't force them to the hard limit as this will effect the end points in the calibration.

Thanks for the response and video! Unfortunately, I tried this procedure and still have the same result. I ended up even swaping motors with no luck. I noticed that when I first connect the battery and give a burst of throttle, I get full power out of the motor. After that, I can't get full power again u until I disconnect and reconnect the battery. I have a feeling it might be the ECS....

 

[Bricks]

Dumb question did you calibrate the ESC? Did you check your battery maybe it can give a burst but not sustain the amp draw.

 

[krissondors]

Dumb question did you calibrate the ESC? Did you check your battery maybe it can give a burst but not sustain the amp draw.

Yes, but I'm not sure it's being done correctly. Controller on, throttle to max, connect lipo battery on yhr plane, let the motor do the turning on beep, and then throttle down. I did the same but let the motor do the turning on beep but let it sit like that and then got one beep, then two, then three, etc. Either way, I did that and still didn't fix the issue.

 

[Foamforce]

Do you have a servo tester? If you did, you could test the throttle response with that. If it behaves correctly, then it’s something wrong with your receiver or transmitter. It still misbehaves, then it’s a problem with your motor or ESC.

 

[quorneng]

+1 for using a servo tester to drive the ESC. It takes the radio side completely out of the equation so mkaing it much easier to identify where the fault lies.
Just an aside but some ESC or transmitters can be programmed for a "slow start" capability as used by helicopters.

 

[Piotrsko]

If you don't have a tester, then plug it into another channel, perhaps the elevator or flap channel and see what it does. (Up down function of the stick[ could use rudder, but that gets messing with your mind] That will at least eliminate whether or not it is a esc issue or radio issue without buying a servo tester then waiting for it to show up

 

[Bricks]

Yes, but I'm not sure it's being done correctly. Controller on, throttle to max, connect l.ipo battery on yhr plane, let the motor do the turning on beep, and then throttle down. I did the same but let the motor do the turning on beep but let it sit like that and then got one beep, then two, then three, etc. Either way, I did that and still didn't fix the issue.

By waiting to long on the beeps you may have changed the ESC programing.

 

[krissondors]

UPDATE:

I got the issue fixed, the problem was the ESC.

I'm not sure if it is a programming issue or just defective, but I ended up buying a 40a from rcelectricparts.com and calibrating it. WOW it has so much more power and doesn't have the issue with the different max rpms. I understand that the extra 10amp is definitely helping with the extra power, but I think my original ESC never even reached it's real max rpms. To be fair, I bought a super cheap rc plane kit where I got 2 servos, ESC, motor, and props for less than $30 so I'm not surprised that I had issues with the no-name ECS.....

I want to thank everyone here for the warm welcome to the forum and helpful advice! Thank you!

 

[Piotrsko]

Following the conservation of broken- ness law: the new one always works because brokenness has finite amounts available