Sovietwarplanes

We're trying to understand if some PR-5 airliners were painted orange, as poswar polar aviation planes, or grey, silver or what else.

Now, is there written anything in the text that allows to establish the colors of the plane?
(http://mig3.sovietwarplanes.com/r-5/tapani/texts/pr-5.jpg)

Now, if the orange was for polar planes, couldn't the cream be for liners? I know that these colors are introduced in 1940, but perhaps replaced similar ones of the '30s.
...
The Po-2 in the Chkalow museum is painted cream. Could it be a wide prewar use?

The PR-5 are forthemost in a color darker than white, non metallic, and I am not sure it is grey.

Hi Jason,
that Russian text says that in 1932-34 specialists from TSAGI conducted tests how P-5 get out from spinner. And (as usually) shit happend on May 9, 1933...

last week I guessed about the R-5 "Limuzin" number "20" and I missed...  Sad
I checked Maslov's Armada and Kotelnikov's Aviakollektsiya issue and there is no references of that plane being "medevac"!
Only 5 R-5s were converted to carry 2 stretchers under wings in 1937 and that was it.  During the war, I guess (again...) U-2 was a primary medevac planes; U-2 could carry 2-3 wounded soldiers (1-2 stretchers depending on version).  R-5s were used as transports for larger loads (R-5 could lift between 500 and 1000kg) - R-5s supplied partisan units etc.
Back to R-5 "Limuzin" number "20":  both authors agree that it was a wartime modification.  It could be an one of a kind plane... I guess  Smiley.
Kotelnikov says that it was modified in Leningrad overhaul depot in 1941 (check http://lib.rus.ec/b/251378/read ).
There is a photo of this R-5 during overhaul in Armada on page 44.  This photo shows a small rudder red star without any outline.
More about wartime  R-5 "Limuzin" number "20":
Maslov calls this plane an "executive transport", Kotelnikov describes it as a "communication plane".  Maslov says that the same plane delivered newspapers in 1944 ( a lot of newspapers, between 500 and 1000kg).
Kotelnikov calls the streamlined underwing containers "kaseta Shcherbakova".  Sometimes it was called "Model 1934".  Two persons could fit in the container, but it was normally used as a cargo space for various loads.

Hi Misos
Interesting, but does it say it was the same plane of the side photo?

R-5 No 5215 was used in expeiments which were supposed to improve R-5's stall recovery charackteristics (Russian "shtopor" is translated as "stall").  This plane had movable rear wing struts - movable struts were supposed to function as rudder during stall recovery.

Are you sure about that? I am not a native Russian speaker, but since I work as an aeronautical engineer with Russian as my third language I am often asked to translate for my colleagues. I always translated штопор (shtopor) as "spin" and "срывь" (sriv) as a "stall".

Again correction....  Sad
Armada page 44 photo is a similar, not the same plane...
it's profile is drawn here:

Hi Konstantin,
Thank you, maybe could be good for another profile.
Is it written how many of these were converted?

... Andersson reports 220 PR-5 built in z.241 in 1936-39 and over forty P-5 converted to PR-5 in 1940 (probably the planes in the drawing you've posted, I wonder how their section of fuselage was made). I don't remember where I read the number of 1000, but probably included other variants.

The plane was already old at the date of its capture, and shows extensive silver brush repaintings, particularly on the back of the fuselage and around the door, probably intended to protect the wood against exposure to elements.

Being a military plane, the most likely color for its background is AII light grey or similar paint.

Hi,
we are looking details of the SSS, the rear turret in particular.

Note the wall-like object behind the shoulders of the gunner. Probably it is a curved ammo box. I wonder if its extension is symmetrical or not behind the gunner.
Has anyone any ideas or images on this?
Regards
Massimo

Can you tell more about the "occasional use of white paint on R-5 before the war" - when and why?

BTW, if you remove (totally unrelated) photos of 4-person desant containers from the "Red 20 transport plane" page, I'll post more info about that plane.  ;)