Soccorso & Sanitari planes colour

[Mario_R]

Hi everyone,
looking at B/W photos of (idro)Soccorso planes equipped with Cant.Z.506C and S and various Sanitari planes (Ca.309, Ca.312) and SM.75 with Red Cross symbols, refering mainly to Moncalvo and Massimiello researches published on GMT notiziari and Araldica della Regia Aeronautica volume terzo;
I noticed that most of the planes were painted a different colour than the Bianco Neve of the Red Cross symbolsand the white of the Italian flag on the tail, even if the RA ordered a white colour for the whole aircraft.
This is very easy to spot in SM.75GA I-LAME, that was not properly a Sanitario plane but just a plane with Red Crosses applied,

https://mab.forumfree.it/?t=70564098&st=60

but it seem to be the case also to the few Ca.309, Ca.312, Cant.Z.506C and maybe to Cant.Z506S:

https://www.britmodeller.com/forums/ind ... e-of-them/

https://airpages.ru/eng/ot/z506.shtml

https://lia.fondazioneleonardo.com/arch ... item/24579

Likely every one of these few planes had an own specific story (and maybe colour) but I'm considering if they were painted with a more "civilian" Madreperla or a Cachi Avorio Chiaro instead of the signal Bianco Neve.

https://www.modellismopiu.it/modules/ne ... at&order=0

What your opinion on this regards?

Ciao
Mario

[Mario_R]

I checked Ca.133 and seems that the above (the colour of the plane is darker than the Bianco Neve of the red crosses and Italian flag) also for at least some of them (I-BULA and at least another one without civil immatriculation).

Ciao
Mario