By building its drones in-house, Zipline is refining the future of aerial delivery—one carbon fiber airframe and whisper-quiet winch at a time.
If you think drones are noisy in flight, try building and testing them. During a visit last month to the drone startup Zipline’s factory in South San Francisco, California, industrial noise welled up in corners of the facility—the roar of a wind tunnel, the rhythmic clack of a test rig simulating motor casing wear, and other mechanical sounds in a symphony of engineering.
