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AMBROSINI SAI.403 DARDO

The Ambrosini SAI.403 Dardo (Dart) was a considerably refined version of the Ambrosini SAI.207, designed during the delays in that type's development. The sole prototype flying in 1943.

[Source: Unknown]

The improved performance induced the Ministero dell' Aeronautica in 1943 to cancel its order for 2,000 of the SAI.207 so as to order 3,000 of the SAI.403 instead (800 from Ambrosini, 1,000 from Caproni, and 1,200 from Savoia-Marchetti). Apart from the fighter's superlative performance, its all-wood construction was attractive at a time when Italy was facing a shortage of strategic materials. However, by the time of the Armistice, the first of these was yet to leave the factory.

The single prototype (MM.518) was seized by the Germans and evaluated by the Luftwaffe at Vergiate. Japanese pilots then stationed in Germany were also given a chance to fly the aircraft, with the result that it was ordered into production by both Heinkel and Mitsubishi. None of these flew before the end of the war either.

Variants:
SAI.403A
Point-defense fighter (gross weight 2,478 kg/5,460 lb) armed with 2 × 12.7mm Breda-SAFAT machine guns.

SAI.403B
Standard fighter (gross weight 2,643 kg/5,830 lb) armed with 2 × 12.7mm Breda-SAFAT machine guns and 2 × 15mm MG 151/15 cannons or 2 × 20mm MG 151/20 guns.

SAI.403C
Long-range fighter with 2 × 20mm cannons and an extra 300 L (66 imp gal, 71 us gal) for a total range of 2,320 km (1,440 mi).

Source:
WikiPedia
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