Ambrosini SAI.403

Ambrosini
Industry	Aerospace
Founded	1930s
Headquarters	Italy

Template:Infobox aircraft

The Ambrosini SAI.403 Dardo ("Dart") was an Italian light fighter aircraft developed during World War II.

Design and development

The SAI.403 Dardo represented a significantly enhanced iteration of the earlier SAI.207, conceived amid delays encountered in the original model's progress. These advancements led the Ministero dell' Aeronautica in 1943 to withdraw its initial order of 2,000 SAI.207 units and instead commission 3,000 SAI.403 fighters, distributing production among Ambrosini (800 units), Caproni (1,000 units), and Savoia-Marchetti (1,200 units). Beyond its outstanding performance capabilities, the fighter's entirely wooden construction was particularly advantageous due to Italy's scarcity of critical materials at the time. Nevertheless, by the Armistice, none of these aircraft had yet been delivered from the manufacturing facilities.

Operational history

The sole prototype (serial number MM.518) was confiscated by German forces and subjected to evaluation by the Luftwaffe at Vergiate. Additionally, Japanese aviators stationed in Germany were afforded the opportunity to pilot the aircraft, resulting in production orders placed with both Heinkel and Mitsubishi. None of these production models were completed or flown before World War II concluded.

Variants

SAI.403A: Designed as a point-defense interceptor with a maximum takeoff weight of 2,478 kg (5,460 lb), equipped with 2 × 12.7 mm Breda-SAFAT machine guns.
SAI.403B: Standard fighter version weighing up to 2,643 kg (5,830 lb) and armed with 2 × 12.7 mm Breda-SAFAT machine guns plus either 2 × 15 mm MG 151/15 cannons or 2 × 20 mm MG 151/20 cannons.
SAI.403C: Extended-range fighter featuring 2 × 20 mm cannons, an additional internal fuel capacity of 110 L (29 US gal; 24 imp gal), and two drop tanks each holding 150 L (40 US gal; 33 imp gal), enabling a total range of approximately 2,320 km (1,440 mi).

Operators

File:Flag of Germany (1935–1945).svg Germany

Luftwaffe (operated captured prototype)

Template:Country data Kingdom of Italy

Regia Aeronautica

Specifications (prototype)

Template:Aircraft specs

References

Notes

Bibliography

Cattaneo, Gianni. SAI-Ambrosini 207 and its derivatives (bilingual Italian/English). Rome, Italy: La Bancarella Aeronautica, 2005.
Taylor, Michael J. H. Jane's Encyclopedia of Aviation. London: Studio Editions, 1989.

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