Hi all!
Fokker streaky camouflage scheme long time test.
As might already be known here for most of you from other discussion rounds many of you hold the view, that a turquoise is contained in Fokkers' paint.
The FOKKER-TEAM-SCHORNDORF was always of the opinion that this is not correct. What the FTS comes on, stands quite away from the generally predominant view about the complete structure of the Fokker streaky view protection paint.
By the detailed studies of historic photographs, documents and reports concerning the appearence of the Fokker streaky camouflage paint, the FTS draws the conclusion, that the paint was actually executed in a much more simple way then usually accepted and that it that way even was much more effective.
To find out more about the matter, we have started a long time test today. And we want to show and discuss the results here in detail.
The attempt is it to notice which influence the protective coat with lineseed oil varnish has on the optical appearence of the single colours.
To this end we have a contemporary 85 years old linen cloth pulled on a frame and treated it just like this accepts FTS at that time was done, too.
At first the fabric was pulled up on the frame tightly and then stretched with a dope from cellulose acetate. *After every paint with dope the surface was sanded slightly. The application of the streaky paint was then so carried out that at first one layer was scantily applied of light cold grey. Another paint was then applied with an olive green hue in the same way on top of the first paint. In this way a very simple camouflage paint scheme of three colors arose which in turn was even of very light weight. The translucent beige/brown of the fabric, the cold blueish/grey of the underside as well as the olive green.
Following this as a reference and decoration the "Fokker" factory Works-Number 2002 was applied (this was Fok. DR I 418/17).
At the end the whole was covered with a protective coat of lineseed oil varnish.
An optical change of the applied colours showed up immediately after aplying the lineseed oil varnish. The lineseed oil exerted the least influence on the appearence of the olive green. The natural colour of the linen cloth was changed already by the dope in a firm beige and after the coating with lineseed oil varnish ran into a brownish color. The influence of the lineseed oil on the cold blueish/grey colour was remarkable. This changed - as expected - noticeably into a very pale light blue/turquoise.
The idea of the test is to expose the fabric piece for a period of about 3-4 months to wind, rain and sun. The normal operating conditions of the aeroplanes shall hereby be simulated at that time. *The observations are documented in regular distances.
To the meaningfulness of the test the following can be said. The influence of the lineseed oil on the phenotype of the colours can be taken as exemplary for aeroplanes at that time. It just is the same with the linen cloth as well as the dope on cellulose azetate basis, since these also correspond to the materials used at that time. The used laquer paints should not be judged representatively, since these do not agree with the compositions of the colors in use at that time. However we did not use light true paints here.
The course of the test should be interesting however.
Photographs of the experiment of 10-8-2002 are enclosed.
Fabric, dope, paint.
Fabric, dope, paint, Works-No.
Fabric, dope, paint, Works-No., protective lineseed oil varnish, flashlight dot *;D
