Related Clues:
- Copter spinner
- Spinner on a helicopter
- Engine turner
- 52 Down invention of 1903
- Centrifuge part
- Headlight accessory, sometimes
- Helicopter blades
- Eggbeater feature
- Rain clearer
- Whirlybird whirler
- Helicopter topper
- Apache topper
- Wind turbine part
- System of turning helicopter blades
- Palindromic moving part