Societa Aeronautica Italiana was founded in 1922 at Passignano sul Trasimeno and the Ambrosini group took over SAI in 1934. Known principally for the light fighter designs of ing. Sergio Stefanutti, whose S7 was the basis of the 107, 207 & 403 fighters that followed. After the war he continued with the 'Super' S7 and S7 'Sagittario I'. His jet powered Aerfer 'Sagittario II' & Aerfer 'Ariete' designs were Italy’s first aircraft to go supersonic.
SAI Ambrosini 207/403: These are essentially one and the same, the 403 being a 207 with detail changes to the rear fuselage (including a retractable tailwheel), improved engine performance and extended wings with additional wing armament. Their lightweight construction, combined with very efficient aerodynamics, returned exceptional performance figures despite using a relatively low powered engine. However their fragility and low numbers with only twelve 207 & two 403 built meant they had negligible use during the war. Dujin produced a 1/72 resin 207 kit and LF Models released resin 1/72 and 1/48 scale models, the 1/48 kit being the only one in this scale. The side profile of the fuselage is fairly accurate but has sectional errors to the nose and rear fuselage areas. The top image is my modified kit. By altering the rudder profile, extending the wings and adding the wing cannon details, it is quite possible to build an 403 from this kit, as seen in the second image. Click on either image to find out more. Airmodel produced a rather basic 1/72 vacform model of the 403 and is reasonably accurate and can be seen in the third image. Extra detailing with spares will be necessary though. The 403 was also available in 1/72 scale from Old Wings and issues 72 & 73 of Aerofan has a lot of detail on these aircraft. A useful ‘mini Ai d'Italia’ was also published. RS Models probably used these as reference material for their 1/72 207 & 403 kits. Both, by far, are the most faithful models of these elegant airframes in any scale. The fourth image shows their 207 built for a SAMI review.
SAI Ambrosini SS4: Another advanced design, this canard aircraft first flew in 1939. Extensive tests with the sole prototype showed good promise but the project was abandoned after the aircraft was destroyed by engine failure during its second test flight. Cunarmodel made a very nice 1/72 resin kit of this aircraft, which was re-issued by ItalianKits. Italiankits have announced details of a possible future 1/48 kit and maybe a 1/32 kit as well!
Lombarda A.R (Assalto Radioguidato). This was a large radio-controlled flying bomb concept built cheaply using non-strategic materials. The prototype first flew in 1943 and got a positive response from the test pilot. 4 more aircraft were built but were subsequently destroyed. Kora produced a pretty good 1/72 resin kit and the Planet Models 1/48 resin kit will give the modeller some idea just how big this aircraft was. The image on the right is the KORA kit, which is also available from LF Models.
Lombarda AL.12P. This was a glider design built mostly out of wood and first flew in 1943. 16 were built and they could carry 12 fully equipped soldiers. Post WWII, an AL.12P was fitted with 2 Alfa Romeo air cooled engines. There are no known kits of this aircraft.
Aeronautica Umbra S.A.
This company was established in Foligno in 1935 by Muzio Macchi to build SM.79s as a sub-contractor before initiating their own projects.
AUT.18. A prototype built in competition with, and sharing the same FIAT A.74 engine, as the Macchi C.200, Caproni Vizzola F.5 and FIAT G.50. It was not a great success, despite appearances, and never won a production order. Broplan released a 1/72 vacform kit of both the early and late versions of the prototype. It is an ideal introduction to those that have yet to venture into this medium. Although it is not the best quality moulding, with time spent cleaning up the various parts, a neat model can be made from either one of these kits. Those not keen on NMF would probably prefer to build the late camouflaged version. The last two images are the two variants I built for SAMI review articles. Click on either to find out more.
MB.902. One other known Umbra project was ing. Bellomo's MB.902, a large twin-engined heavy fighter prototype featuring a tri-cycle undercarriage and contra rotating props powered by license-built DB605 engines buried inside each wing. It was destroyed in Sept 1943 just when construction had been completed. A google search will show all manner of conflicting interpretations of the design, making it almost impossible to come up with a definitive look.
Some of the model images below link to detailed write ups.