sentences:  Compared with that aircraft, the SAI.2's wing area was only 1.4 m² (15 ft²) less, but the reduction in drag as a result of the monoplane configuration versus that of a biplane resulted in a top speed 20 km/h (12 mph) higher.Both aircraft used the same engine type.Despite the similarity in designation, the subsequent SAI.2S was a completely unrelated design.