Caproni-Vizzola CV.3 / CV.4 / CV.5 / CV.6 / CV.7 series

[Stargazer]

The current Caproni auction at Mallams provides some great documents about the Caproni-Vizzola CV.3, CV.4, CV.6 and CV.7.
Instead of simply linking the pages, I prefer to share the entire set of images here (we all know that images often disappear from auction sites after the auction is over).

Here is a set of images for the Caproni Vizzola CV.3 project of 1939.
According to Apophenia's data, it was an aerobatic trainer powered by an Isotta Fraschini Beta 6-cyl. inline engine.
It was in competition with the Breda Ba.92, Caproni Ca.214, Ca.602, CANSA FC.11 and IMAM Ro.71.

 

[Stargazer]

Here is the Caproni Vizzola CV.4 project of 1940:
It was a single-seat fighter-trainer presumed to be a rival to unbuilt Breda Ba.204.
According to Apophenia, it was to be powered by a 350 hp Isotta Fraschini Gamma IV-12 engine, but these documents clearly indicate that a Daimler-Benz D.B.601 was the engine of choice.

 

[Stargazer]

The previously undocumented Caproni Vizzola CV.6, also of 1940, would have been a twin-engine two-seat fighter with twin-fin tail.

 

[Stargazer]

The Caproni Vizzola CV.7 biplane of 1940 was a trainer which was studied in both single-seat and two-seat configurations. It was to be powered by an Isotta Fraschini Beta RC 10.I engine.

 

[Stargazer]

I realize I forgot the Caproni Vizzola CV.5, sort of an intermediary design between the CV.3 and CV.7:

 

[Apophenia]

Wow! All highly valuable visual information but, for me, the best of all was the C.V.4. It seems clear that the C.V.4 was a stage in the development of Fabrizio Fabrizi's F.4 fighter. Obviously, there were detail differences.

The planforms differ slightly - the F.4's wing possibly being longer spanned? In the planview drawing (100191781-0.jpg), the C.V.4 wing appears to be a metal structure. The F.4 was, of course, wooden. [1]

While the F.4 had a belly-mounted radiator, that of the C.V.4 was nose-mounted. I have a vague memory that the originally-planned F.4 (with 960 hp IF Asso 121 R.C.40) was also to have had a nose-mounted radiator (as originally did the prototype F.6M). Great stuff!
_____________________________________________

[1] Contrast the C.V.4 wing structure in 100191781-0.jpg with the F.5 structure in 100191787-4.jpg
-- https://www.secretprojects.co.uk/threads/caproni-vizzola-f-series-designs-by-fabrizio-fabrizi.44673/

 

[Tonton-42]

Bravo and thank you to Stargazer for sharing these beautiful things ! The quality of the layout is breathtaking. The drawings of the different views are as much graphic art as technical drawing by the care taken to their realization in a time when we worked only by hand without electronic assistance ! For having been myself a while at the drawing board in the study office, but also at the CAD console, I am very impressed! Without further idle consideration on my part this says a lot about the technical quality of the Italian engineering in an era when one more easily lends advance to that of the Germans or US !

 

[KVittorioVeneto]

I also saw these drawings at the same auction website, to be honest those seems quite interesting designs. I tried to lookup for those at the book ITALIAN CIVIL AND MILITARY AIRCRAFT 1930~1945 By JONATHAN W. THOMPSON but it only mention the F.4, F.5, F.6 and F.7 designs.

Is there a book that references the whole C.V. serie designs (compared to the F Series, which is less obscure as far as I know)? Thanks!

 

[NeverWasNeverWillBe]

Fantastic information. I haven't heard of these before. Thank you for sharing.

 

[carlo961]

In the same auction there were also two drawings of Caproni Vizzola CV.8, a double engine, three-seats torpedo bomber, equipped with a couple of Daimler Benz DB.601 (obviously built under licence in Italy by Alfa Romeo), please find attached side view (with main tecnical data) and plan view.