Supersonic airliner and gyroscope: what they have in common

1. Step 1. Supersonic airliner — is a kind of — Jet airliner. An airliner.
2. Step 2. Jet airliner — has part — Autopilot. An autopilot.
3. Step 3. Autopilot — has part — Gyroscope. Sperry’s gyroscopes.

Open Evothings