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Caproni-Vizzola F.7

Andrewjs2007

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Thought I'd better move this to a seperate thread as it's not really Fiat G.52 anymore.

In Thompson (Italian civil and military aircraft, 1930-1945) we are told that the F.7 project was based on the F.6, but with a slimmer fuselage and powered by an Alfa Romeo Monsonie engine (licence built DB601)

Anyone have any more details?

Thanks


Andrew
 

Skybolt

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Er, no. The intended engine for the F-7 was the FIAT RA.1050 R.C.58, i.e. the license built DB-605. The wing was the same as the F-6M, but with a longer fuselage. It was intended as the Caproni-Vizzola "5" series fighter (sincerely, there were already too many...). The ones with the DB-601 and Tifone (licensed built 601 by Alfa Romeo), were the F-5bis (AKA F-4, wing made of wood, one prototype built) and the F-6M (an F-4 entirely in dural, M stands for Metallico). BTW, the I.F. Zeta was air cooled, like its parent Gamma. And yes, one version of the Z was equipped with a Wright two-speed turbocharger (I.F. Z R.C.25/60), mechanically driven (no exhaust gas, that is). Problem is that the engine became too hot.... it was always air-cooled.
The late Fabrizi-designed fighter question is rather murky. For example, has been published a sectioned view of an alleged "F-7" with a Delta, an all-wood light fighter. It makes sense, since the Regia (part of it) had an affair with wooden light-fighters and there was a running order for hundreds of SAI-403s.
All these question I hope to resolve in a few week. I definitively know were to look... 8)
 

red admiral

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BTW, the I.F. Zeta was air cooled, like its parent Delta. And yes, one version of the Z was equipped with a Wright two-speed turbocharger (I.F. Z R.C.25/60), mechanically driven (no exhaust gas, that is).

You mean a supercharger then? The RC.25 / 60 designation means that power is re-established at 2500m and 6000m doesn't it? That indicates a two-stage supercharger not two-speed. A two-speed gearbox will just smooth out the power-altitude graph.

I'd like very much to ask you whether you have any pictures of the Piaggio P.XI RC.100 used in a few high-altitude aircraft. Sometimes this engine has the RC.100/2v suffix used. What does this mean?

Sorry for all the questions.
 

Skybolt

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Probably I HAVE, where? ???

2v = 2 velocità (two speed)
 

Skybolt

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Ummm, source I used for the Zeta second version states "due velocità".... But I'll cross check.
 

Skybolt

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Confirmed: it was a centrifugal compressor with two speed of operation. The source is official, a late 1942 Regia document describing experimental engines.
 

blackkite

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Hi! Caproni-Vizzola F.6Z.
Engine was Isotta Fraschini Zeta.
The Isotta Fraschini Zeta was a 24-cylinder aircraft engine X 90°, air cooled, manufactured by the Italian company Isotta-Fraschini in the first half of the forties of the twentieth century.
http://alternathistory.livejournal.com/860342.html
http://forum.tantopergioco.it/discussion/5071/caproni-vizzola-f-5-alphaflight-1-72-w-i-p
Auto translation
The plane received the new designation f. 6MZ. Construction commenced on two instances of aircraft, but only the first (MM. 498) was completed. First flight f. 6MZ was held in August 1943 onwards. Tests revealed the shortcomings of the new powerplant became the main aircraft engine overheating in flight. All of these shortcomings could be eliminated completely, but lapping the engine existed until the capitulation of Italy.

Specification
F. 4      F. 5      F. 6     F.6Z
Wingspan, m       11.35   11.30    11.30     11.82
Length, m         9.15     7.90     9.15      9.25
Height, m         3.02     3.00     3.01      3.02
Wing area m2       18.81    17.60    18.81     18.50
Mass, kg
an empty plane      2462     1818    2265     3355
normal takeoff       3000     2238    2885     4100
Engine type       DB 601A   Fiat A 74 r. c. 3   Fiat RA. 58.1050 Tifone  Isotta-Fraschini RC. 25/60 Zeta
                                   (Daimler Benz DB605A)
Power, HP         1175   870    1475    1250
Maximum speed, km/h  551   496   568   640
Cruising speed, km/h   446    414   477   544
Range, km           950    1000   950   1370
Service ceiling, m    10300   9500   10500   8000
Crew, pers           1    1     1    1
Armament
F. 4 : 2 × 12.7 mm Breda-SAFAT MACHINE GUNS
F. 5 : 2 × 12.7 mm Breda-SAFAT MACHINE GUNS
F. 6 : 4 × 12.7 mm Breda-SAFAT MACHINE GUNS
F.6Z : 2 × 12.7 mm Breda-SAFAT MACHINE GUNS, 2 × 7.7 mm Breda-SAFAT MACHINE GUN
 

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Wurger

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Blackkite-san, I wonder what a FKFS X-16 (intended for the He S-50z) is doing among italian stuff... Mind your seventh image. It`s plain german technology!
 

blackkite

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Oh thanks a lot. Sorry for big mistake.
What is this engine?
 

Wurger

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the photo depicts a two-stroke petrol engine developed by professor Wunibald Kamm from the FKFS in Stuttgart, intended to power a ducted fan powerplant, the Heinkel HeS 50z, dating from 1941/42.
 

zeroc

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Hi, this is my vision of Fabrizi F.6Z, hope you enjoy it.
 

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airman

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http://www.aereimilitari.org/forum/topic/16351-caproni-vizzola-f7/ -

(My approximate image of what if caproni vizzola f.7 was realized also like project )

Caproni Vizzola F.7 was a projected development of Caproni Vizzola F.6 with Db 603 engine .
 

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redstar72

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airman said:
(My approximate image of what if caproni vizzola f.7 was realized also like project )

Caproni Vizzola F.7 was a projected development of Caproni Vizzola F.6 with Db 603 engine .

Looks disproportional, with too heavy nose. Is the engine part really to scale? If so, it's necessary to make the tail longer.
 

airman

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redstar72 said:
airman said:
(My approximate image of what if caproni vizzola f.7 was realized also like project )

Caproni Vizzola F.7 was a projected development of Caproni Vizzola F.6 with Db 603 engine .

Looks disproportional, with too heavy nose. Is the engine part really to scale? If so, it's necessary to make the tail longer.

I know , it's was only an approximate example :)
 

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