Retreating blade | Article about retreating blade by The Free Dictionary
The process of the rotor blade moving away from the relative airflow (i.e., in the direction opposite to which the helicopter is flying). See retreating-blade stall
References in periodicals archive
Factors that must be overcome include the 'drag' of the blades and airframe, retreating blade
stall, air flow reversal, and air compressibility.
At high speed the main rotor is slowed to delay compressibility effects on the advancing tip, and unloaded by the wings to avoid retreating blade
The OSR reduces the rotational speed of the blades in forward flight, to delay compressibility effects on the advancing tip and inboard stalling on the retreating blade