{"product_id":"sai-ambrosini-original-factory-structural-drawing-set","title":"SAI Ambrosini — Original Factory Structural Drawing Set","description":"\u003ch3\u003eSAI Ambrosini — Original Factory Structural Drawing Set\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSocietà Aeronautica Italiana (SAI) Ambrosini, Passignano sul Trasimeno\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA rare surviving set of original factory engineering drawings produced by SAI Ambrosini, one of Italy's most technically refined aircraft manufacturers of the late 1930s and early 1940s. These are primary-source draughtsmanship documents — not reproductions, not scans of published manuals — drawn directly on the factory floor by Ambrosini's engineering staff.\u003c\/p\u003e\n\u003ch3\u003eDocument Manifest — 9 Factory Drawing Sheets\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSheet\u003c\/th\u003e\n\u003cth\u003eSubject\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e04\u003c\/td\u003e\n\u003ctd\u003eWing planform \u0026amp; fuselage layout — top view, rib stations, aileron\/flap hinge lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e05\u003c\/td\u003e\n\u003ctd\u003eWing spar \u0026amp; rib construction — main spar, rear spar, lightening holes, root fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e06\u003c\/td\u003e\n\u003ctd\u003eFuselage internal structure — frame stations, cockpit floor, firewall, fuel bay framing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e07\u003c\/td\u003e\n\u003ctd\u003eLanding gear retraction mechanism — full kinematic diagram, actuator linkage, parts list\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e08\u003c\/td\u003e\n\u003ctd\u003eTail unit construction — horizontal stabiliser ribs, elevator hinge, fin spar, rudder post\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e09\u003c\/td\u003e\n\u003ctd\u003eCockpit structure — instrument panel framing, canopy rail, control column attachment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003eGeneral arrangement \/ preliminary layout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003eControl surfaces detail — aileron, elevator, rudder profiles, hinge brackets, balance weights\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003eFuselage longerons \u0026amp; main frame assembly — engine mount truss, bulkhead cross-sections, parts list\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhy This Set Matters\u003c\/h3\u003e\n\u003cp\u003eSAI Ambrosini produced some of the most aerodynamically elegant Italian aircraft of the WWII era. The factory at Passignano sul Trasimeno was known for precision mixed construction — wood, metal, and fabric — and these drawings reflect that engineering philosophy in full detail. Sheet 07 (landing gear retraction mechanism) is particularly rare: a kinematic diagram showing the full retraction sequence, actuator geometry, and numbered parts list — the kind of document that almost never survives outside factory archives.\u003c\/p\u003e\n\u003ch3\u003ePermitted Uses\u003c\/h3\u003e\n\u003cp\u003eHistorical research · Flight simulation · Museum restoration · Aircraft type study · Engineering reference · Private collection\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis 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.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eLiving Collections with Free Lifetime Updates — Please review our Disclaimer and Export Notice before purchasing.\u003c\/em\u003e\u003c\/p\u003e","brand":"Online Aviation Library","offers":[{"title":"Default Title","offer_id":53659535704411,"sku":null,"price":49.85,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4788\/3867\/files\/sai-ambrosini-parchment-banner.png?v=1785083226","url":"https:\/\/onlineaviationlibrary.com\/products\/sai-ambrosini-original-factory-structural-drawing-set","provider":"Online Aviation Library","version":"1.0","type":"link"}