The Aer Lualdi L.57 was a prototype Italian helicopter, a further refinement of Lualdi's ES 53 and L.55 designs.
Aer Lingus | Lualdi | Aer Arann | Aer language | Aer | Lualdi-Tassotti ES 53 | Antonella Lualdi | Aer Lingus Flight 712 | Adriano Lualdi |
The Aer Lualdi L.55 was a prototype Italian helicopter, a development of the Lualdi-Tassotti ES 53 featuring a far more powerful engine, a 134 kW (180 hp) Lycoming O-360.