Fiat/Ansaldo AC.3 Fighter — Archival Manual Collection

The Fiat/Ansaldo AC.3 was an Italian parasol-wing fighter and ground-attack aircraft of the late 1920s, produced under licence from the French Dewoitine D.9 design and developed by Aeronautica d'Italia S.A. of Torino. Powered by the Alfa Romeo Jupiter IV — a 9-cylinder, air-cooled radial rated at 420 hp, built under licence from Gnome-Rhône — the AC.3 represented a decisive shift away from the liquid-cooled powerplants of its predecessors, eliminating radiator drag and improving battlefield survivability. Approximately 147–150 units were delivered between 1926 and 1927, serving as the primary platform for General Amedeo Mecozzi’s close air support doctrine development throughout the 1930s.

This Living Collection brings together 2 primary-source Italian-language documents issued by the Ministero dell’Aeronautica and Aeronautica d’Italia S.A., Torino — all fixed at their original publication dates and presented in archival facsimile.

Collection Manifest

AC.3 Operating & Maintenance — 1 Document

• AC.3 Aircraft Assembly and Adjustment Instructions
  Istruzioni per il Montaggio e la Regolazione — Apparecchio A.C.3
  Aeronautica d’Italia S.A., Torino — Ministero dell’Aeronautica, Direzione Generale del Genio Aeronautico
  Provveditorato Generale dello Stato, Libreria — Roma, 1927
  Language: Italian

AC.3 Spare Parts List — 1 Document

• AC.3 Aircraft Illustrated Parts Catalog
  Catalogo Nomenclatore — Velivolo A.C.3
  Aeronautica d’Italia S.A., Torino
  Language: Italian

Aircraft Technical Profile

• Role: Fighter / Ground Assault (Mezzo d’Assalto)
• Configuration: Parasol monoplane, dual-strut wing bracing
• Powerplant: 1 × Alfa Romeo Jupiter IV — 9-cylinder air-cooled radial, 420 hp (309 kW)
• Origin: Licence-built from Dewoitine D.9 (France), modified by Aeronautica d’Italia S.A.
• Production: ~147–150 units delivered 1926–1927
• Standard Armament: 2 × 7.7 mm synchronized Vickers machine guns
• Secondary Armament: 2 × 7.62 mm Darne wing guns or 1 × oblique upward-firing wing gun
• Tactical Systems: Smoke-screen apparatus (Apparato fumogeno) & early military radio

⚠️ Regulatory Notice: Under FAA 14 CFR § 43.13 and EASA Part-M, any mechanic performing maintenance on an active aircraft must use current, manufacturer-approved revision-controlled data. This archival document does not satisfy that requirement.

This is an archival, static-copy edition fixed at its original publication date. Intended for historical reference, flight simulation, museum restoration, and educational use only. Not approved for active airworthiness maintenance under FAA 14 CFR § 43.13, EASA Part-M, or equivalent international regulations. Operators of active aircraft must use current, revision-controlled publications from the Type Certificate holder or an authorized distributor.

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