text: CROSSWIND TAKEOFF AND LANDING. 
  Since the airplane must make a true path down 
  the runway, a crosswind during 
  takeoff or 
  landing will require that the airplane be.con- 
  trolled 
  in a sideslip. The rudder must have 
  sufficient control power to create the required 
  sideslip for the expected crosswinds. 
  
  Due to the side force on the vertical tail, a 
  slight bank is necessary to prevent turning 
  flight at zero sideslip. The inoperative engine 
  will be raised and the inclined wing lift will 
  provide a component of force to balance the 1 
  side force on the tail. 
  
  In each of the critical conditions of required 
  directional control, high directional stability 
  is desirable as it will reduce the displacement 
  of the aircraft from any disturbing influence. 
  Of course, directional control must he sufficient 
  to attain zero sideslip. The critical control 
  the multiengine airplane is 
  requirement for 
  the condition of asymmetrical power since 
  spinning is not common to this type of airplane. 
  The single engine propeller airplane may have 
  either the spin recovery or the slipstream rota- 
  tion as a critical design condition. The single 
  engine jet airplane may have a variety of 
  items but the spin recovery require- 
  critical 
  ment usually predominates. 