SNCASO (Sud-Ouest) SO.30 derivative versions

[hesham]

Hi,

We know SNCASO SO.30 very well,and its variants,but I discover
two new projects,the SO.31 & SO.33 which intended to compete
Nord N-2500.
All I know about those two project is the SO.31 had estimated speed
400 km/h.

 

[Jemiba]

There was a competitor to the N.2500, later Noratlas, from SNCASO.
It was the SO.30C a derivative of the SO.30P fitted with a strengthened
floor and a rear loading ramp, built in one single example. And judging the
designation system, a SO.31 or 33 would have been based on SO.30, too.

 

[toura]

Do you know ? Have you details ?

 

[Caravellarella]

Dear Toura, this is the SNCASO Sud-Ouest SO.33 which was SNCASO's submission to the same Armée de l'Air specification that resulted in the Bréguet Br.891R Mars and the SNCAN Nord 2501 Noratlas. It was based on the SNCASO Sud-Ouest SO.30P Bretagne, but with a high wing and a new fuselage and tail-unit; it remained a "project" and never progressed beyond wind-tunnel testing......

SNCASO did build their own rear-loading version of their Bretagne; the SNCASO Sud-Ouest SO.30C which had a rear-fuselage loading ramp concealed behind clamshell panels in the lower rear fuselage (a bit like the Bréguet Deux-Ponts). It could carry 3 jeeps or 24 paratroopers, but was constrained by the narrow rear loading ramp, the massive internal frames in the fuselage-to-wing centre section and the height of the cabin floor above the ground during loading......

I think the lesson learned is that a purpose-built military airlifter is always better than a converted airliner......

Terry (Caravellarella)

 

[hesham]

Also,

the SNCASO Sud-Ouest SO.31 was submitted to this contest as I think.

 

[Jemiba]

A photo of the SO.30C can be found here :
http://www.aviafrance.com/s-n-c-a-s-o-so-30c-aviation-france-4739.htm,
here's a drawing:

 

[toura]

Hi Jens
From "le fana de l'aviation"
SO 30C details

 

[toura]

and more...
But Hesham what is the SO 31 ?

 

[hesham]

My dear Toura,

as I read in Internet,the SNCASO SO.31 was developed from SO.30 with
SO.33,and may be for the same Specification,but I tried to find that site
again,but no way.

 

[toura]

Many thanks Hesham Bye

 

[toura]

SNCASO 30 P "BRETAGNE" - Plane n° 24 "France"
after anti fire training - winter 1970
south of GLAM air base - Villacoublay

 

[hesham]

Do you know ? Have you details ?

A clearer view to SNCASO SO.33.

 

[Petrusja]

Hello. Why did the SO.30 ATAR have extra intakes?
http://aviadejavu.ru/Images6/HI/HI-11/31-2.jpg

Is it correct that this aircraft first flew on 27 Jan 53? When did it become F-BAYD / F-WAYD?

Peter

 

[PhR]

and more...
But Hesham what is the SO 31 ?

Hello,
it's my first time in this forum. I try to show the SO 31 drawing : a project for using a modified SO 30 as jet engine testbed.
This view comes from my own archive collection.

 

[overscan (PaulMM)]

Well that's a good first post. Cheers.

 

[hesham]

From, Prendre-lair-n-9-Decembre-2022,

and a surprise the SNCASO SO.32P.

 

[PhR]

From, Prendre-lair-n-9-Decembre-2022,

and a surprise the SNCASO SO.32P.

For information, I published the detailed history of each individual SO.30 in "Trait d'Union" magazine from issue 326 (November/December 2022) up to issue 345 (January/February 2026). The derived projects SO.31, SO.32P and SO.33 are presented in issue 328 (March/April 2023).

 

[hesham]

Also,

Publications - Association des Amis du Musée Safran

 

[Caravellarella]

F-WAYD, from my own collection of scanned photographs.

Terry (Caravellarella)

 

[Caravellarella]

F-WAYB, from my own collection of scanned photographs.

Terry (Caravellarella)

 

[Caravellarella]

Images from my computer of F-WAYB & F-WAYD.

Terry (Caravellarella)

 

[PhR]

The F-WAYB is the former second prototype SO.30R, transformed as "SO.30 Nene" testbed in 1950.
The F-WAYD was built from the unfinished SO.30R cell s/n 2 as "SO.30 Atar". It became F-ZWSC ("C") in 1961.
I attach two views from below to compare them.