Related Clues:

• Autogiro feature
• Disk brake's disk
• Fixed part of a motor
• Revolving part
• Disc brake's disc
• Wankel engine component
• Copter spinner
• Spinner on a helicopter
• Engine turner
• Centrifuge part
• Helicopter blades
• Eggbeater feature
• Whirlybird whirler
• Helicopter topper
• Apache topper