for conditions at stall, the actual drag of the 
airplane is depicted by the “hook” of the 
dotted line. 
(B) At a speed of 124 knots, the airplane 
would incur a minimum rate of descent in 
power-off flight. Note that at this speed the 
induced drag comprises 75 percent of the total 
drag. If this airplane were powered with a 
reciprocating-propeller type powerplant, maxi- 
mum endurance would occur at this airspeed. 
92