text: NAVWE,PS OD-80T-80 
  APPLICATION OF AERODYNAMICS 
  TO SPECIFIC PROBLEMS OF FLYING 
  
  the forces acting on the airplane, i.e., 
  thrust, weight, and drag. 
  ANGLE OF ATTACK VERSUS AIRSPEED. 
  In order to achieve equilibrium in the vertical 
  direction, the net lift must equal the airplane 
  weight. This is a contingency of steady, level 
  flight or steady climbing and descending flight 
  when the flight path inclination is slight. A 
  refinement of the basic lift equation defines the 
  lift coefficient, 
  relationship of speed, weight, 
  etc., for the condition of lift equal to weight. 
  
  lift, 
  
  V=17.2 
  y 
  J TP 
  
  or 
  
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              [html]<thead><tr><td>VR = 17.24 /°/°</td></tr></thead><tbody><tr><td>Parameters</td></tr><tr><td>Paw velocity, knots ( TAF ) F1 = equivalent airspeel, knots ( EAF ) W = group weight, Ibs. I = weing surface area, sp. fc. W /( I = weing loading, pufaralitusle density ratioGo = life coefficient</td></tr><tr></tr><tr></tr><tr></tr><tr></tr><tr></tr><tr></tr></tbody>
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