MARKINGS AND INSIGNIA

3. MARKINGS

a. Each part and assembly will be permanently and legibly marked the same number as the drawing number in such location that it can be read after assembly in the unit. (See Specification No. 98-24105Q.)

b. Various detail and code markings for the cockpit, fuselage, oil lines, etc., as required in Specification No. 98-241050, will be maintained.

c. Radio call letters of not less than four numbers, utilizing both sides or each outboard side, as applicable, of vertical stabilizer and rudder assembly, will be maintained on all Army Air Forces aircraft. (See figures 8 and 10.) Call letters, or designators, will be derived by deletion of the first numeral of serial number (4) and the hyphen, and the combination of the remaining four or more numerals. In case of serial numbers of type 41-7, use zero as necessary to make four numerals, as 1007. Decalcomanias may be used in all cases where available. Standard sizes 8 x 12 inches and 6×9 inches may be used when present stocks are depleted. Colors will be yellow, shade No. 48, for dark camou­flage, and black, shade No. 44, for light surfaces.

d. Under no condition will the letters “U. S. Army” be applied to any airplane lower wing surface.

4. STANDARD INSIGNIA.

Cocardes, the five-point white star within a blue circle, will be placed and maintained on each Army Air Forces aircraft as indicated in the following paragraphs, Decalcomanias will be used in all cases where available

WARNING

Under no condition will the red circle within the white star be used.

a. WINGS.—Insignia of a size 80 to 90 percent of available width of wing at location specified herein will be maintained on top surface of left wing and lower surface of right wing with point forward. The center will be located inboard from each wing tip one-sixteenth of the total wing span on wings not tapered, but with outside edge not nearer

FIGURE 7 FIGURE 8

than 6 inches to end, and one-eighth of span on tapered wing. The cocarde will be located tangent to the aileron cut­out or midway of the wing width on those on which aileron cut-out is not a factor. (See figures 7 and 8.)

b. FUSELAGE.—One star insignia approximately 75 percent of height of fuselage will be applied to each side with point upward near-midway between the trailing edge of the wing and the leading edge of the horizontal stabilizer. (See figure 8.)

c.
RUDDER STRIPES.—The use of rudder stripes is prohibited.

FIGURE 9

5. ORGANIZATIONAL INSIGNIA.

a. The placing of organizational markings or design (approved by the War Department as outlined in Army Air Forces Regulation 35-32) will be the responsibility of the organization itself. Depots will not be required to reproduce this insignia.

b. No specific locations are mandatory but points between wing and tail surfaces on opposite sides of the fuselage are considered most desirable. In no case will size of insignia exceed 75 percent of height of fuselage at point of application. Similar planes in the same organization will have the same size insignia.

c. If applied to other than smooth surfaces, insignia may be painted on thin aluminum sheet and bolted or screwed securely to rigid members of the airplane.

6. DECALCOMANIAS.

The use of decalcomanias for standard or organizational insignia (T, O. No. 01-1-21), and markings is authorized. Instructions for application should be printed on the reverse side of the various types; however, in event of any confusion the Commanding General, Air Service Command, Patterson Field, Fairfield, Ohio; Attention: Chief, Miscellaneous Equipment Section, will be notified giving Purchase Order number, type, and

size.

SECTION III