Helicopter main rotor blades rotating against blue sky background, blades of helicopter in motion, powerful engine of aircraft keep moving
Helicopter soars up into the sky after refueling
Close up view of the rotor blades of an Offshore wind turbine wind park.
Side footage of male African American green energy engineer presenting his project about advancing wind turbine rotor blades production with layout in back to audience during meeting
Pull back shot of wind turbine in landscape. Spinning rotor blades high above ground. Green energy, ecology and carbon footprint reduction concept
A drone's rotor blades spin in extreme slow motion
Aerial view of wind turbines in Brandenburg, Germany.
Two Workers Walking Around the Rotor Blades
Wind turbine rotating large rotor blades, generate sustainable electricity power
Jet engine rotor blades rotating - airplane in airplane
Close up view of the rotor blades of an Offshore wind turbine wind park. The Netherlands.
High angle view of wind turbine producing clean energy. Striped ends of rotor blades. Green energy, ecology and carbon footprint reduction concept
Vertical full medium footage of male alternative energy specialist explaining work of new wind turbine fixing rotor blades to its prototype tower during business conference in office
Side footage of male Biracial wind power engineer with tablet giving report about revenue his company got after using enhanced windmill rotor blades pointing to layout during conference indoors
Full medium footage of male alternative energy specialist explaining work of new wind turbine fixing rotor blades to its prototype tower during business conference in office
Side vertical footage of female Hispanic innovator demonstrating new wind turbine rotor blades to partners and pointing to blueprint image at meeting
Vertical side footage of female Hispanic CEO of renewable energy technologies department presenting new windmill rotor blades mockup during conference in office
