Great6Sandini
Page 65 / Chapter 9 Basic Helcopter Handbook : Hazards of Flight
AC-61-13B
.....The airflow over the retreating blade of the helicopter slows down as the forward airspeed of the helicopter increases: the airflow over the advancing blade spees up as forwards airspeed of the helicopter increases...
The major warnings of approaching retreating blade stall conditions in the order in while they will generaly be experienced are:
- Abnormal vibrations
- Pitch up of the nose ..............one reason why that little wing is there
- Tendency for the helicopter to ROLL
When one blade is losing lift, the other is gaining lift...that's called.....??