text: advantages of root stall first are that ailerons 
  remain effective at high angles of attack, 
  favorable stall warning results from the buffet 
  on the empennage and aft portion of the fuse- 
  lage, and the loss of downwash behind the root 
  usually ptovides a stable nose down moment 
  to the airplane. Such a stall pattern is favored 
  but may be difficult to obtain with certain wing 
  configurations. The types of stall patterns in- 
  herent with various planforms are illustrated 
  in figure 1.33. The various planform effects 
  are separated as follows : 
  
  1.32. As with the rectangular wing, the non- 
  uniformity of downwash and lift distribution 
  result in inefficiency of rhis planform. For 
  example, a pointed wing of AR=6 would have 
  17 percent higher induced angle of attack for 
  the wing and 13 percent higher induced drag 
  than an elliptical wing of thesame aspect ratio. 
  Between the two extremes of taper will 
  exist planforms of more tolerable efficiency. 
  
  The variations of 2 for a wing of taper ratio 
  
  =0.5 closely approxtmates the lift distribution 
  of the elliptical wing and the drag due to lift 
  characteristics are nearly identical. A wing 
  of AR=6 and taper ratio=0.5 has only 3 
  percent higher ai and 1 percent greater CD: than 
  an elliptical wing of the same aspect ratio. 