noun, noun or participle which takes 'suru'
autopilot; automatic pilot; automatic control
Technical term for a system that controls a vehicle or machine automatically. Can be used literally for aircraft, ships, etc., and figuratively for doing something on autopilot.
飛行機は自動操縦で飛んでいる。
The plane is flying on autopilot.
With years of experience, he handles the work as if on autopilot.