title: Aer Lualdi L.57
text: # Aer Lualdi L.57
  
  The Aer Lualdi L.57 was a prototype Italian helicopter, a further refinement of Lualdi's ES 53 and L.55 designs.
  
  The aircraft featured a larger main rotor than its predecessors, a fibreglass tail rotor, and an autopilot.
  
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