FlightLine Spitfire Mk.IX 1200mm (47") Wingspan - PNP Maiden Flight On Ice

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[@gammlerzen403]

Great. Im wonderring what this beep sounds are? Would you be so kind and tell me? I hear that alot in other videos too and i have no clue what it might be.

[@northswedenrc5260]

The ec initializing how many cells the lipo battery got.

[@clayton5949]

The single beeps you hear as he's flying are both trim adjustments and he probably has a tome alarm set on his throttle when it's below a certain percentage, so for landing as you might hear it several times as the pilot comes above and below a percentage of throttle. This is just a guess but these are generally the tones you will hear when someone is using a spectrum transmitter. Sometimes it's the countdown times as well, telling you it's one minute out of 30 seconds out.