Page 88 - Aeronautical Engineer Data Book
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Aeronautical definitions   67

                        Lift force (L)
      Aircraft climbing


        Pitching moment (+M)
                                      Drag force ( D)
                        W
                             L



                                     Rolling
                                     moment (L )
                                           R

                         W



              Yawing
              moment (N)

                                       D







                       Lift (+L)

                           Nose yaws to
                           right (+N)
                                     Drag (+D)
       Lateral (+Y)
                y

                                       Left wing
      Left wing   x                    up (+L )
                                          R
      up (+L )	            Nose pitches
          R
                           up (+M)

      Fig. 4.1  Forces, moments and motions
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