In order to increase flight speed, coaxial high-speed helicopter is getting more and more attention. Due to the complexity of its transmission system, this study mainly deals with dynamics reduction ...

NOVI, Mich. — Beginning next week, you may notice low-flying helicopters across the state. These helicopters are from the company ITC and they will be conducting aerial patrols of the high-voltage ...

American Transmission Systems, Inc., a subsidiary of FirstEnergy Corp., is using helicopters and ground crews to replace more than 550 insulators and attachments along a 35-mile section of a ...