NH Industries is working to deliver a solution to an issue with the main rotor head on NH90 military helicopters that means the blades can impact the tail structure when starting or stopping the ...

Boeing to demonstrate piezoelectric cells in active flight control technology A Boeing team is poised to demonstrate a rotor-based active vibration control system for helicopters, marking a new leap ...

Helicopters can perform some incredible aerobatic feats, but they’re also noisy, shaky, and expensive to run. NASA researchers are developing helicopter blades featuring a shape-shifting smart ...

LONDON—Leonardo Helicopters has begun ground tests of two active main rotor blade technologies, with the aim of flying both before this summer. The company is experimenting with an Active Gurney Flap ...

Specially shaped helicopter rotor blades with a kink at the outer part make it possible to reduce the radiating annoying rotor noise [1]. Against this background, the aeroelastic behaviour together ...