Under 14 CFR Part 107, if a remote pilot must yield to a manned aircraft in flight, what right-of-way rule applies to drone operations?
Why →Under § 107.37, the remote PIC must yield right of way to all other aircraft, no exceptions. Manned aircraft of every kind (fixed-wing, rotorcraft, gliders, balloons, airships) always have priority, at all altitudes including below 400 feet AGL. Drones sit at the bottom of the right-of-way hierarchy in the National Airspace System.
The trap →Drones have no altitude-based right-of-way privileges. The "below 400 feet" operational norm does not give drones right of way over manned aircraft at those altitudes. There is no IFR exception. Manned IFR aircraft absolutely retain right of way.
Field note →The practical implication: if you see or hear any manned aircraft approaching your operating area, immediately position your drone to maximize separation. Don't assume the manned pilot has seen you. A Cessna at 500 feet AGL in Class G has every legal right to be there, and right of way is entirely the drone pilot's responsibility.