Английская Википедия:Aer Lualdi L.57
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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.
Шаблон:Portal bar Шаблон:Lualdi aircraft
Шаблон:Aero-1950s-stub
Шаблон:Mil-aviation-stub
Шаблон:Italy-mil-stub