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seesul
Senior Master Sergeant
Camouflage Finishes for Aircraft (Specification 24114)
A new Air Corps Spec. 24114 "Camouflage Finishes for Aircraft", was issued as a result of the Air Corps Study No. 42 on camouflage
of combat aircraft. Dated October 24, 1940, it also introduced Air Corps Bulletin No. 41, "Color Card for Camouflage Finishes", (see
Chapter 7) which established the new Air Corps matt colors for permanent camouflage paints. The key requirements of this specification
were:
Application-
One coat of zinc chromate primer, Spec. 14080, shall be applied to all exterior surfaces. This shall be followed by two coats
of camouflage lacquer, Spec. 14105, applied as follows: all upper surfaces except for insignia shall be coated with dark olive
drab, Shade 41 of Bulletin 41, camouflage lacquer. The olive drab coating shall extend downward on the sides of the fuselage
and all other similar surfaces in such manner than none of the neutral gray coating is visible when the airplane is in normal
level flight attitude and is viewed from above from any direction within an angle of approximately thirty degrees from
vertical lines tangent to the airplane. The location of the color boundary line in accordance with the foregoing shall be subject
to the approval of the Procurement Agency. All under surfaces, except for insignia and markings, shall be coated with neutral
gray, Shade 43 of Bulletin 41, camouflage lacquer. Masks shall not be employed to separate the two shades. The lines of
demarcation shall be eliminated as far as possible by blending the colors at the junction line by over-spraying.
Finish of Fabric Covered Surfaces:
Apply at least three brushed coats of yellow or cream semi-pigmented nitrate dope. The dope shall not be thinned for brush
application. Apply at least one spray coat of yellow or cream semi-pigmented nitrate dope, thinned as required for spray
application. Apply at least two spray coats of dark olive drab or neutral gray fully pigmented nitrate camouflage dope as
required.
From the above mentioned book- http://www.schifferbooks.com/newschiffer/book_template.php?isbn=0764302469 - so it seems that they used the primer?
A new Air Corps Spec. 24114 "Camouflage Finishes for Aircraft", was issued as a result of the Air Corps Study No. 42 on camouflage
of combat aircraft. Dated October 24, 1940, it also introduced Air Corps Bulletin No. 41, "Color Card for Camouflage Finishes", (see
Chapter 7) which established the new Air Corps matt colors for permanent camouflage paints. The key requirements of this specification
were:
Application-
One coat of zinc chromate primer, Spec. 14080, shall be applied to all exterior surfaces. This shall be followed by two coats
of camouflage lacquer, Spec. 14105, applied as follows: all upper surfaces except for insignia shall be coated with dark olive
drab, Shade 41 of Bulletin 41, camouflage lacquer. The olive drab coating shall extend downward on the sides of the fuselage
and all other similar surfaces in such manner than none of the neutral gray coating is visible when the airplane is in normal
level flight attitude and is viewed from above from any direction within an angle of approximately thirty degrees from
vertical lines tangent to the airplane. The location of the color boundary line in accordance with the foregoing shall be subject
to the approval of the Procurement Agency. All under surfaces, except for insignia and markings, shall be coated with neutral
gray, Shade 43 of Bulletin 41, camouflage lacquer. Masks shall not be employed to separate the two shades. The lines of
demarcation shall be eliminated as far as possible by blending the colors at the junction line by over-spraying.
Finish of Fabric Covered Surfaces:
Apply at least three brushed coats of yellow or cream semi-pigmented nitrate dope. The dope shall not be thinned for brush
application. Apply at least one spray coat of yellow or cream semi-pigmented nitrate dope, thinned as required for spray
application. Apply at least two spray coats of dark olive drab or neutral gray fully pigmented nitrate camouflage dope as
required.
From the above mentioned book- http://www.schifferbooks.com/newschiffer/book_template.php?isbn=0764302469 - so it seems that they used the primer?