Why do helicopters have top rotors?
Show answer & explanation
Answer: Spinning blades create lift
Top is the strongest point — Wrong. Rotor position isn't about structural strength. It's about creating lift above the aircraft.
Spinning blades create lift ✓ — Correct! Helicopter rotor blades are shaped like airplane wings. As they spin, they create lift by pushing air down. Tilting the rotor lets helicopters move in any direction—they're like flying fans that can change angle!
To balance the weight below — Wrong. Balance is important, but the rotor's position is about generating lift directly above the center of gravity.
More Transportation questions
- Why can one runway crash cripple a whole airport?
- Why isn't a go-around always possible at the last moment?
- Why doesn't a radioed 'Stop!' mean instant braking?
- Why can one runway emergency make a second mistake more likely?
- Why do runway crashes often come from several small failures at once?
- Why doesn't a jet's anti-collision system simply stop a runway crash?