NAVWEPS 004oT-80 
APPLICATION 0~ AERODYNAMICS 
TO SPECIFIC PROBLEMS OF FLYING 
LIFT FORCES IN THE 
AUTOROTATION REGION 
FORCES IN THE 
PROPELLER REGION I 
t 
LIFT 
I 
’ \ DRAG 
RESULTANT 
VELOCITi DUE TO 
ROTe;TION 
FLIGHT 1 
I DIRECTION 
UTOROTATION 
VERTICAL AUTOROTATION FORWARD FLIGHT 
AUTQRQTa-i\QN 
Figure 6.17. Rotor Autorotation Flaw Conditions 
406