Eurocopter Blue Edge rotor blade noise reduction

Eurocopter video showing the reduction in rotor noise acheived in flight tests of its Blue Edge blade on an EC155 helicopter. Compared with a conventional blade, the Blue Edge has a tip with both forward and rearward sweep. Eurocopter says this gives the blade more time to interact with the vortex shed by the rotor, reducing the characteristic impulsive (slap-slap) blade-vortex interaction noise generated by a helicopter.

Category:

Science & Technology

Tags:

• aviation
• helicopter
• rotor
• noise
• Eurocopter
• environment

[mtnbikerET]

omg! finnally someone that actually knows something about helicopters and isnt an asshole about it

[SamariaKingdom]

まじか！！凄すぎる（－_－；

[yawho88]

สุดยอด

[MistaHappyJ]

@SamariaKingdom ないことない

[LetsPlayMc]

I wonder if similar technology could be applied to prop-driven aircraft to silence their damn noise. Would make living in flight paths a lot quieter.

[dogshmog]

Hello bin laden raid helicopter technology

[blankrasta]

Will they incorporate this technology for NH-90 and EC-725? If yes, goodbye Merlin, lol

[soupizgoodfood]

Wow.

[Kpj7466]

Why i love the rotor slap/

[gikofussar]

ブルーエッジって、消音モードを備えたブルーサンダーから名付け­たものなのかな。