1. 
   Restoring (or Righting) Moment
   That moment tending to restore an aeroplane to its original position after any disturbing movement.
   Found op http://www.aeroplanemonthly.com/glossary/
   
   
2. 
   restoring moment
   the moment provided to restore an actuator or a contact element to its initial position
   Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=441-16-20
   
   

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