text: an increase in lift coeflicient and reduction in 
  thrust required. Hence, a “floating” 
  sensa- 
  tion may be experienced. Because of the re- 
  duced drag and power-off deceleration in 
  ground effect, any excess speed at the point of 
  flare may incur a considerable “float” distance. 
  As the airplane nears the point of touchdown 
  on the approach, ground effect will be most 
  realized at altitudes less than the wing span. 
  An exact appreciation of the ground effect may 
  be obtained during a PcZd approach with 
  the 
  mirror 
  landing system furnishing an exact 
  reference of the flight path. During the final 
  phases of the field approach as the airplane 
  nears the ground plane, a reduced power 
  setting is necessary or the reduced thrust re- 
  the airplane to climb 
  quired would allow 
  above the desired glide path. During ship- 
  board operations, ground effect will be delayed 
  until the airplane passes the edge of the deck 
  is 
  and the reduction in power setting that 
  common to field operations should not be 
  encountered. Thus, a habit pattern should 
  field landings which 
  not be formed during 
  would prove dangerous during carrier oper- 
  ations. 