text: NAVWEPS DD-RDT-80 
  BASIC AERODYNAMICS 
  
  boundary layer obtained may reduce the form 
  drag due to separation. 
  In each instance, the 
  forced transition will be beneficial if the reduc- 
  tion in form drag is greater than the increase 
  in skin friction. Of course, this possibility 
  exists only at low Reynolds Numbers. 
  
  wires or small 
  surface protuberances on a wind tunnel model 
  may be used to force transition of the boundary 
  layer and simulate the effect of higher Reynolds 
  Numbers. 
  
  1,n a similar sense, “trip” 
  
  PLANFORM 
  
  EFFECTS AND 
  DRAG  AIRPLANE 
  
  EFFECT OF WING PLANFORM 