Oscillations — fast, high-frequency shake
A fast, high-frequency shake or buzz is visible in flight or in blackbox logs.
💡 The idea: This is almost always P set too high, or noise feeding the loop.
Try these in order
Make one change at a time and re-test — that's how you learn what your car likes.
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1
Lower P gain
The most common cause per the Betaflight PID guide.
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2
Check for mechanical issues (bent prop, loose motor) first
Mechanical noise can look exactly like a PID problem.
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3
Review gyro/D-term filter cutoffs
Insufficient filtering lets noise feed the control loop.
Found what works? Save it as a Setup Sheet and compare it against your baseline, log the result in your Run Log, or dig deeper in the RC Wiki.
General RC tuning guidance — your chassis manual's own tuning chart is the final word for your specific car.