text: speed, If the airplane were given a large nose 
  down tab setting the pull 
  in- 
  crease with airspeed. This fact points out the 
  possibility of “feel” as not being a true indi- 
  cation of airplane static stability. 
  
  force would 
  
  If the c.g. of the airplane were varied while 
  maintaining trim at a constant airspeed, the 
  effect of c.g. position on stick force stability 
  could be appreciated. As illustrated in figure 
  the c,g. aft decreases the 
  4,14(C), moving 
  slope of the line of stick force through 
  the 
  trim speed. Thus, decreasing stick 
  force 
  stability is evident in that smaller stick forces 
  are necessary to displace the airplane from 
  the trim speed. When the stick force gradient 
  (or slope) becomes zero, the c.g. is at the 
  stick-free neutral point and neutral stability 
  the c.g. is aft of the stick-free 
  exists. 
  instability will 
  neutral point, stick 
  force 
  exist, e.g. the airplane will 
  require a push 
  force at a lower speed or a pull force at a higher 
  speed. It should be noted that the stick force 
  gradient is low at low airspeeds and when 
  the airplane is at low speeds, high power, 
  the 
  and a c.g. position near the aft 
  for airspeed will be weak. 
  “feel” 
  
  limit, 