text: control speeds” set by these factors rather than 
  simple stall speeds based on C&,. 
  
  When a wing of a given planform has various 
  high lift devices added, the lift distribution and 
  stall pattern can be greatly affected. Deflec- 
  tion of trailing edge flaps increases the local 
  lift coe5cients in the flapped areas and since 
  the stall angle of the flapped section is de- 
  creased, initial 
  the 
  flapped area. The extension of slats simply 
  allows the slatted areas to go to higher lift 
  coe5cients and angles of attack and generally 
  Also, power 
  that vicinity. 
  delays stall 
  effects may adversely affect the stall pattern of 
  the propeller powered airplane. When the 
  propeller powered airplane is at high power 
  and low speed, the flow induced at the wing 
  root by the slipstream may cause considerable 
  delay in the stall of the root sections. Hence, 
  the propeller powered airplane may have its 
  most undesirable stall characteristics during the 
  power-on stall rather than the power-off stall. 
  
  stall usually begins in 