Failure - Interactions


_Boeing Airliner_,  Nov'1961:


"Rudder Operation and Control"


. . .  Control valve . . . in the central position . . .  the Rudder Power Control Unit . . .  ceases to be power-operated . . .  can easily give the impression that the Rudder is stiff or jammed. . . .  


". . . between 100 and 120 kt . . .  suddenly veered to the left . . ."


The cause of the accident could not be determined. . . .

  Air France 272  /  27July1961:

B-707-328    F-BHSA

. . . While taking-off . . .

the pilot had difficulty holding . . . a straight heading along the runway   . . .   abandon the take-off. . . .

  veered to the left,    ran off the runway . . . 

  Rudder  Pedal-Force:

    "... despite great effort,   the Rudder Pedal

          could no longer be actuated right,   and

              he felt that it was jammed."

  Air France   /   27Jul61   B707-328,   F-BHAS,

              T/O accident on Rwy-23 at  Hamburg, Germany.