The trailing edge spoiler EvoFlap for the blade root area, divided into seven segments. Photo Credit: evoblade The wind energy start-up, evoblade, a spin-off of the Institute of Aerospace Technology ...

A flexible, controllable trailing edge for wind turbine blades has shown that it can reduce the loads on the turbine and in the end provide cheaper electricity from wind power. The idea dates back to ...

Bell 206L-3, Abilene, Texas, March 29, 2009 –The NTSB determined the fatigue crack in the trailing edge of a main rotor blade was caused by interconnected porosity and resulting corrosion resulting ...

The first electricity-generating wind turbine was erected, it is said, in 1891, in Askov, Denmark, to benefit village farmers. More than 100 years later, the global cumulative installed wind turbine ...

March 27, 2009 Can you imagine a world full of large, relatively quiet rotorcraft making short hops between cities such as New York and Washington, carrying as many as 100 passengers at a time in ...

The mobility of helicopters is used in various fields regardless of military or civilian use, but due to the mechanism of breaking the air with a huge blade to generate lift, the noise becomes bigger ...

Boeing is to test a smart helicopter rotor in a NASA windtunnel to verify the vibration, noise and performance improvements expected in forward flight with in-blade active flaps. The modified MD 900 ...

A new sound-suppression study provides fresh insight for airfoil design and noise control for micro-aircraft and fluid machinery. The research focused on the concept of trailing-edge noise by using ...