A remote pilot mounts a thermal camera 4 inches to the left of center on a drone's payload rail to clear a cable obstruction. During a hover test, the drone tilts noticeably to the left and requires continuous right correction from the flight controller. What is the correct assessment?

Why →An off-center payload shifts the aircraft's center of gravity laterally, requiring the flight controller to continuously command asymmetric motor thrust to maintain level attitude. This increases stress on the high-output motors, reduces battery life, degrades emergency control margins, and may reduce camera stability. A visible and persistent tilt indicates the offset exceeds acceptable operational limits.

The trap →Flight controller compensation does not make an off-CG configuration safe. It masks the problem while consuming extra resources and degrading safety margins. Motor temperature differential does not cause a persistent directional lean in well-maintained aircraft. 'Can maintain level flight' is not the same as 'operating normally.'

Field note →Center payload weight as close to the aircraft's CG as possible, typically near the centerline between the arms. If an offset is unavoidable, counterbalance the opposite side.