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Various SNCASO (Sud-Ouest) projects and prototypes

hesham

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Hi,

The SNCASO SO.80 Biarritz and SO.90 Bayonne were two projects
developed from Bloch MB.800,as twin engined trainer/light transport
aircraft.
 

Jemiba

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The SO.90 Bayonne, name is given as "Cassiopée" in other sources, wasn't just a project !
The prototype made its unannounced maiden flight on 16th August 1943, under
the surprised eyes of the italian guards, when Maurice Hurel, together with 8 others,
used this aircraft for the escape to algeria. Later development of the SO.90 were
the SO.93 and 94 Corse.
 

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hesham

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Hi,

the SNCASO SO.80 was twin engined mail acrrier and five seat
light transport aircraft,notice the SO.91 was a tricycle u/c
derivative of SO.90.
http://www.flightglobal.com/pdfarchive/view/1944/1944%20-%201276.html
 

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Boogey

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The postal aircraft S.N.C.A.S.O. S.O.-80 Biarritz of 1941 startet its life
as the military training Bloch M.B.-800 of 1940.
http://www.airwar.ru/enc/cww2/mb800.html
There is, of course, a mistake in the russian text : should be S.O.-80, not S.O.-800 !
http://www.aviafrance.com/10139.htm

P. S. I'm still weak as a child after my heart operation, working on comuter and writing posts
make me very tired, but I really miss You all and sometimes I can't stand to fritter down on the sofa
reading about military aviation history, all the time finding out interesting things
like the conection between the M.B.-800 and S.O.-80 :)
 

toura

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Hi Boogey
Look at :
"Aviation-ancienne.forumactif.com/quizz-aeronautique.f19/reponses-
une vieille enigme-de-l-air"
There you could see the first MB 800 T3
after the plane change (as on this site) it became
Mb 800 p ( postal)
and it continued as so 80 with the sncaso (ex Bloch)
and after so 90 with modifications........
GOOD HEALTH
Bye
 

Tophe

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Thanks.
The French text says "it is surprisingly twin-engined, so there were probably double-engines", so four engines as a whole.
Were those engines in the wing or in the fuselage? or in tandem in the pods with the propellers? We don't know, it seems. Unusual in any case.
 

Caravellarella

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Dear Boys and Girls, here is an article in French about the SNCASO Sud-Ouest SO.70 transatlantic airliner from 1945 which remained a "project". It looks like a fat Lockheed Constellation or a scaled-up SNCASO Sud-Est SO.30 Bretagne but appears to have avoided the mistakes made with the latter's mid-wing layout. It was to be powered by four Gnôme Rhône GR18 18 cylinder radial engines and was a design contemporary of the SNCASE Sud-Est Se.2010 Armagnac......

The article comes from the 9th March 1957 issue of Les Ailes......

(Moderators, should this be in the post-war section? I cannot tell if the design was started before the liberation of France......)

Terry (Caravellarella)
 

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c460

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There is a great 9-page article on the MB.800 and SO.800 in Le Fana no.333, by MM. Ricco and Jung.
The story is complex, and not everything is well understood.

To sum up, there were two different Bloch 800, both with two engines. The first was the MB.800 three-seat tandem trainer, military type P3 (Perfectionnement, 3-seat), designed by Le Bihan. It flew at Mérignac in Dec. 1940. A later T3 version was considered (Travail, 3-seat), and Bloch 800B and Bloch/SNCASO 810 and 810A projects were wind tested, but no detail is known.

The other Bloch 800 was a light transport or postal aircraft, with two seats side by side. It appears under many names:
- SO.80, postal aircraft studied at Châteauroux by Le Bihan in July 1940
- SO.800, new name for wind tunnel tests in Oct. 1940
- SO.820, SO.820bis and SO.830 variants, wind tested in early 1941
- MB.800P, on the plans drawn in Jan. 1941 (P for Postal?)
- SO.800P, for wind tunnel tests in Mar. 1943
The aircraft itself was painted "Bloch 800 P N°01" on the fin. The author suggests that the confusing designations were perhaps intentional, to hide the military MB.800 to the German. Other possibilities are mentioned, such as recycling MB.800 plans for the postal aircraft.

The article also says that there was also an SO.180 project, with 6Q engines and tricycle gears, date unknown, mentioned in Les Ailes (5 May 1956).
 

hesham

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Excellent my dear C460,


great info,and for the SO.180,I think may be that aircraft was developed from
Bloch MB.180 project,you know the SNCASO used the Bloch aircraft and gave
it a SO designation,such as Bloch MB.175 became after the company was absorbed
by the SNCASO as SO.175.
 

c460

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Hi Hesham,
That's a possibility indeed, that the SO.180 came after the SO.161 and SO.174/175 families.
 

hesham

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Thank very great Info my dear C460.
 

hesham

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hesham said:
Excellent my dear C460,


great info,and for the SO.180,I think may be that aircraft was developed from
Bloch MB.180 project,you know the SNCASO used the Bloch aircraft and gave
it a SO designation,such as Bloch MB.175 became after the company was absorbed
by the SNCASO as SO.175.

Hi,


the SNCASO SO.180 was a project of 1956,a three-seat light transport aircraft,developed
from SO.80,powered by two 220 hp Renault 6Q20 engines,and here is its data from LA
FANA issue 333.


Also here is the SNCASO 1000,2000 & 3000 series origins;


1000 was SNACO ex-Nieuport
2000 was SNCAN ex-CAMS
3000 was SNCAC ex-Farman
 

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hesham

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