Related Clues:
- Turning muscle
- Helicopter blades
- Eggbeater feature
- ___ cuff
- Whirlybird whirler
- Helicopter topper
- Apache topper
- Wind turbine part
- Two-way muscle
- Palindromic antenna turner
- System of turning helicopter blades
- Palindromic moving part
- Revolving part of a motor
- Reversible piece of moving machinery?
- Machine part that turns around