PPRuNe Forums - View Single Post - Vortex Ring / Settling with power (Merged)
Old 24th Jan 2001, 00:28
  #43 (permalink)  
ShyTorque
Guest
 
Posts: n/a
Unhappy

Lu Z,

As I understand it the BERP blade was designed to overcome problems with compressibility at the high speed end of the flight regime. They are in effect a swept tip but to reduce twisting moments the rear of the blade shape is modified too.