The SAI.3 was a low-wing
monoplane with a graceful, elliptical wing, and fixed
tailwheel undercarriage. Customers could choose between enclosed or open
cockpits, and between an inline
Alfa Romeo 115 engine or a
radial Fiat A.50. A revised version was marketed as the
SAI.3S with a smaller-chord wing and a
Siemens-Halske Sh 14 radial engine, this offering far superior performance to the original SAI.3 design. ==Specifications==