Historical references to spinning flying machines go back hundreds of years, with evidence like the 12th-century Chinese twirling kite and Leonardo da Vinci's bizarre airscrew contraption of 1483.

Helicopters stand among the many reasons why aviation is as important as it is today. These aircraft occupy various niches worldwide, ranging from extensive military applications, such as helicopters ...

Marenco Swisshelicopter is making tweaks to the main rotor hub of its SH-09 light-single based on data from flight tests that began last October. The design changes will be applied to the second ...

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