Colors Markings and Insignia Package.pdf

TM 55-1500-345-23

TECHNICAL MANUAL

PAINTING AND MARKING

OF ARMY AIRCRAFT

This publication supersedes TB 146-9321 0 August 1978, Including all changes

HEADQUARTERS DEPARTMENTOF THE ARMY

12 JUNE 1986

TM55- 1 9 0 0 - 3 4 5 23

CHAPTER 4

TACTICAL PAINT SCHEME

Sec t ion I.

GENERAL.

a. The c o a t i n g s y s t e m a n d p a i n t i n g s c h e m e th is sec t i on is t h e A r m y s t a n d a r d f o r t a c t i c a l icopters. The f i n i s h c o a t p r o v i d e s a l u s t e r l e s s , v i s ib i l i t y a n d l o w r e f l e c t a n c e s u r f a c e in i ous m i l i t a r y c o n d i t i o n s .

This a i rc ra f t green topcoa t con fo rms to

-C-46168. This topcoa t is to be appl ied over mer c o n f o r m i n g to M I L - P - 2 3 3 7 7 o r L-P-85582. A d v a n t a g e s o f M IL -C -46168 coating are its properties of resistance to mical agents, increased abrasion and im- 1 resistance, improved exposure and thering performance and superior longevi-

Aircraft green paint , MIL-C-46168, is rough-textured than most pa in ts . This is intended, Suant to a c h i e v i n g l o w r e f l e c t i v i t y re-ements.

EXTERNAL AREAS NOT TO BE

NTED.

2. Areas Not to be Pain ted (General). Do not me or apply any paint to any o f the fo l l ow ing ex- Or Surfaces:

(1) Light tenses, windows, and wind-elds.

2) Wires and cables (electrical).

(3) c e M a r k s r k s c a n b e e d t o C o v e r

Areas containing slippage or toler-unless the slippage or tolerance retained (1/2" masking tape may be Marks), HELICOPTERS

(4) R u b b e r a n d c l o t h b o o t s a n d d u s t c o v e r s .

(5) D e - i c i n g b o o t s .

(6) R e i n f o r c e d f l e x i b l e d u c t i n g .

i m p r e g n a t e d

(7) P l a s t i c or c e r a m i c i n s u l a t o r s f o r r a d i o a n t e n n a s . D o not p a i n t a n t e n n a s , a n t e n n a r a d o m e s , or a n t e n n a c o v e r s w i t h IR p a i n t .

(8) R o d s t h a t m o v e in a n d o u t o f h y d r a u -l i c c y l i n d e r s , o n p o r t i o n s c o n t a c t i n g a m a t i n g su r -f a c e . N o n - c o n t a c t s u r f a c e s w i l l be c o a t e d .

(9) P i s t o n p o r t i o n o f l a n d i n g g e a r s t r u t s a n d s h i m m y d a m p e r , w h e r e s u r f a c e s a r e m a t e d .

(10) I n t e r i o r a n d o p e n i n g o f p i t o t t u b e .

(11) Pi to t s ta t i c open ing.

(12) Sta t ic g round receptacle.

(13) All bear ings, races, and rod ends.

Apply mask ing over, and 3/4 inch beyond, bear-ings, races, and rod ends. Mask ing wi l l be snug and comp le te to prevent any sp ray f r om enter ing bearings, races, and rod ends.

(14) All hydraut ic f i t t i ngs . App ly m a s k i n g to cover f i t t i ngs and about one inch of tubes .

(15) A m b i e n t a i r t h e r m o m e t e r probe.

(16) Requ i red c o n s p i c u i t y m a r k i n g s .

(17) Prev ious ly u n p a i n t e d A i r c r a f t Surv iv-ab i l i t y Equ ipment .

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TM55-1500-345-23

3 - 4 . P A I N T I D E N T I F I C A T I O N . Where non-tactical paint schemes are authorized, the f inish coat specified in the non-tactical paint schemes may be obtained by use of the polyurethane MIL-C-46168 or MIL-C-83286. See Chapter 3 for appropriate primers.

5 - 5 . S H A D E N U M B E R S . T h e s h a d e n u m b e r s of some colors of non-tact ical f in ish c o a t s are as fo l lows :

G l o s s o l i v e d r a b 14087

G l o s s w h i t e 1 7 8 7 5

S e c t i o n Il.

3 - 7 . R O T O R B L A D E S A N D PROPELLER

A S S E M B L I E S . Paint schemes for rotor b l a d e s a n d p r o p e l l e r a s s e m b l i e s a r e c o v e r e d in

C h a p t e r 6.

5 - 8 . M A R K I N G S . | Let ter ing. word ing. insig-nia, etc. fo r non- tac t i ca l pa in t schemes shal! be t he same as for s tandard tac t i ca l a i rcraf t un less s p e c i f i c a l l y s ta ted o the rw ise in th is techn ica l m a n u a l .

NOTE

Do no t p a i n t i tems current ly unpainted, e.g., an tenna masts , loops, antenna hous ing , radomes, exposed port ions of o p e r a t i n g m e c h a n i s m s , t ransparen t pane l s and ant i -g lare areas.

5 -9 . TRAINING AIRCRAFT.

a. T D A he l i cop te rs and fixed wing aircraft for t r a i n i n g pu rposes m a y require addi t ional vivid col-o r s c h e m e s a n d mark ings to provide high con-s p i c u i t y due to inexper ienced student pi lots f ly ing in c o n g e s t e d t ra in ing areas.

b. The fuse lage of the t ra in ing aircraf t wi l l be the s t a n d a r d tac t i ca l pa in t s c h e m e s of Chapter 4.

In a d d i t i o n , a reas of f l uo rescen t red-orange paint (MIL-P-21600), or tape may be used when required

Gloss black

Gloss red The

Gloss international orange 1h

Fluorescent red-orange Tap M p a

5 - 6 . F I N I S H I N G S Y S T E M . 7 ) , .

or coating systems (sequence o f paint i h from bare metal) for non-tactica| paint Stangh are shown in Chapter 3. Velen

S P E C I F I C and authorized. See Chapters 9 and 19 for figy showing details of high conspicui tymarkings , aircraft used for training. au

c. The use of high conspicuity tape inplay of fluorescent paint on flat or slightly Curved ay.

c r a f t s u r f a c e s o f f e r s a b e t t e r M a r k i n g for alo p e r i o d o f t i m e d u e t o i t s d u r a b i l i t y , resistance, f a d i n g a n d q u i c k t u r n a r o u n d t o t h e tacticalco f i g u r a t i o n w h e n n e c e s s a r y . T e s t s i n d i c a t e that thet t a p e d o e s n o t f a d e in o n e y e a r o f use, wheres f l u o r e s c e n t p a i n t t e n d s t o f a d e in about fou m o n t h s . T a p e h a s l i m i t e d a p p l i c a t i o n because:

h i d e s c r a c k s a n d c o r r o s i o n . T a p e is to beapplied o n l y as s h o w n in i l l u s t r a t i o n s . T o e l im ina te hidden c o r r o s i o n , t h e t a p e s h a l i n o t be applied o seams. Nonper fo ra ted tape sha l l not be apple over rivet heads, but per fo ra ted tape may & a p p l i e d o v e r r i v e t h e a d s . W h e r e necessary, lit tape may be removed by the application of pat remover, MIL-R-81294.

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d. TDA helicopters and fixed wing a i o used for training purposes, that are preset painted wi th in te rna t iona l orange, in 9?

condition, will not be refinished with fluores?

paint or tape. They will be maintained with ": «ging | na t iona l o range unt i l c o m p l e t e repainting required.

TM55- 1500-345-23

Sect ion Il. PROPELLER ASSEMBLIES A N D ROTOR BLADEs

6-6. GENERAL

a. Purpose. The f in ish used on prope l le rs and ro to r b l ades is app l ied to prevent cor ros ion or d e t e r i o r a t i o n of the under ly ing surfaces, to resist e ros ion f r om sand par t i c les . dust. for ant i -g la re

Purposes, to dec rease v is ib i l i t y of tac t i ca l a i rcraf t used in s o m e areas.

b. Paint S c h e m e s and Shades. Paint schemes a n d s h a d e s fo r p rope l le r assemb l i es and ro to r b l ades are s h o w n in Chap te rs 8. 9. and 10.

c. T a c t i c a l v s N o n - T a c t i c a l O p t i m u m H i g h

V i s i b i l i t y S c h e m e s . P r o p e l l e r a s s e m b l i e s a n d r o t o r b l a d e s o f t a c t i c a l a i r c r a f t in t a c t i c a l a r e a s o r in n o r m a l C O N U S a r e a s Sha l l be p a i n t e d a c c o r d -i n g t o t h e s t a n d a r d t a c t i c a l p a i n t s c h e m e s . T h e n o n - t a c t i c a l o p t i m u m h i g h v i s i b i l i t y p a i n t s c h e m e s f o r P r o p e l l e r a s s e m b l i e s a n d r o t o r b l a d e s a r e p e r m i s s i b l e f o r T D A h e l i c o p t e r s a n d f i x e d w i n g a i r c r a f t , a s c i t e d in p a r a g r a p h 1-4.

T h e s e s c h e m e s a r e t o P r o v i d e h i g h v i s i b i l i t y o f

P r o p e l l e r s a n d r o t o r b l a d e s u n d e r t h e fo l l o w i n g c o n d i t i o n s :

(1) H i g h d e n s i t y a i r c r a f t on t h e g r o u n d t o r e d u c e t h e r i s k o f p e r s o n n e l w a l k i n g i n t o p r o p e l -l e r s o r t a i l r o t o r b l a d e s .

(2) H i g h d e n s i t y a i r c r a f t in t h e a i r t o r e d u c e m i d - a i r c o l l i s i o n by m a k i n g t h e a i r c r a f t b e l o w m o r e v i s i b l e .

(3) V i s i b i l i t y o f d o w n e d a i r c r a f t in a r c t i c , j u n g l e o r d e s e r t a r e a s . :

(4) V i s i b i l i t y o f d o w n e d V I P a i r c r a f t .

(5) V i s i b i l i t y o f a i rc ra f t in a t ra in ing envi-r o n m e n t .

d. R e q u i r e m e n t . Before se lec t ing the opt i -m u m h igh v i s i b i l i t y p a i n t scheme, c o m m a n d e r s s h o u l d g ive c o n s i d e r a t i o n to the requ i rements for f u n d s , p a i n t i n g a n d b a l a n c i n g equ ipment , and p e r s o n n e l to p rope r l y suppor t the high v is ib i l i ty p a i n t s c h e m e .

6-2

e. Rep lac ing P rev i ous Schemes, and b lades p a i n t e d to p rev i ous no s c h e m e s need not be r e p a i n t e d t high v is ib l i t i y s c h e m e u n l e s s repai for o ther reasons. such as exces or overhaul . TOE /MTOE h e l i c o p pa in ted wi th low re f l ec t i ve t a c t i c a us ing MIL-C-46168. a i r c ra f t green, wi l l not have the s t r i p e d high scheme a p p l i e d to ma in o r tai l ro to r Dlades, Thes a i rc ra f t w i l l have b lades Pain ted in ACCOrdangy wi th MIL-C-46168, a i r c r a f t b l ack #37038.

Propel NtaCticgy Da

© the 9 im

Nting igne S i v e r e t o y t e r s W h i c h a

| P a i n t Schen 8

OF a i r c r a f t visibility bai h i n g f . P r e c e d e n c e . C o n c e r n i n g t o u c h y PD. ove, p a i n t i n g , s t r i p p i n g . p a i n t a p p l i c a t i o n and Dalane.

ing; if the c o n t e n t s of th is TM disagree wm i n s t ruc t i ons in the a i r c ra f t m a i n t e n a n c e Manual gr in overhau l manua ls , the la t ter manua ls take pre cedence over th is TM.

g. T o u c h u p . W h e n n e c e s s a r y . p rope l le rs ang b l a d e s m a y be l i g h t l y t o u c h e d u p be tween over.

h a u l p e r i o d s w h i l e i n s t a l l e d on t h e a i rc ra f t . Care w i l l b e e x e r c i s e d t o a p p l y p r o p o r t i o n a t e amounts o f p a i n t t o e a c h b l a d e t o m a i n t a i n p r o p e r balance.

W h e r e t o u c h u p p a i n t c a n be a p p l i e d t o all blades o f an a s s e m b l y in p r o p o r t i o n a t e a m o u n t s . balance n e e d n o t be a c c o m p l i s h e d . T h i s i s n o t to be inler p r e t e d a s an a u t h o r i z a t i o n f o r d e l e t i o n of propellt o r b l a d e b a l a n c e a t O v e r h a u l , o r a t a n y other time.

w h e n b a l a n c i n g i s n o r m a l l y r e q u i r e d .

h. Overpainting for Opt imum High Visibility . i n |The o p t i m u m h i g h v i s i b i l i t y n o n - t a c t i c a l str ipes"

Chapters 8, 9 and 10 will not be added over tte existing tactical paint scheme. Similarly, thetact cal paint scheme will not be added over the his" visibility paint scheme. The blades should

Stripped, painted and rebalanced.

i. Str ipp ing. Ensu re al l b l ade da ta and me ings are obta ined pr ior t o s t r ipp ing p a i n ! mai blades so that the same data and marking?

be restenci led -on a p p l i c a b l e b l ades subsed it to repaint ing. Prope l le r b l ades of f ixed wind'

. intl Craf t w i l l n o t be S t r i p p e d d u r i n g a i r c r a f t repa!

u n l e s s n e c e s s a r y .

W h e n ro to r b l a d e s are o f b o n d e d con-s t r u c t i o n , t h e o r i g i n a l f i n i s h s h o u l d no t be s t r i p p e d b e c a u s e o f p o s s i b l e h a r m f u l e f f e c t s o f p a i n t s t r i p p e r s o n b o n d i n g a g e n t s a n d a d h e s i v e s . P e r s o n n e l s h o u l d c o n s u l t a p p l i c a b l e m a i n t e n a n c e m a n u a l s fo r r e m o v a l of o l d p a i n t f in-i s h e s f r o m t h e s e b l a d e s .

i Pa in t A p p l i c a t i o n . W h e n a p p l y i n g p r ime r or n ish coa ts , the b l a d e s and p r o p e l l e r s m u s t be in h o r i z o n t a l p o s i t i o n , a n d r e t a i n e d in tha t p o s i t i o n

Inti l t he pa in t or p r i m e r has set. P r ime r and f in i sh o a t s shou ld be s p r a y e d on l i g h t l y and u n i f o r m l y .

Surfaces wi l l be p repa red a n d p r imed as s p e c i f i e d n C h a p t e r 2 u n l e s s o t h e r w i s e d i r e c t e d . T o p c o a t i n i s h i n g m a t e r i a l s s h o u l d c o n f o r m to t h o s e mate-r ia ls l i s ted here in .

i

jk. Ba lanc ing . A f t e r c o m p l e t e repa in t i ng or ex tens i ve touch-up, the p rope l l e r s and b lades m u s t be reba lanced in an i n t e r m e d i a t e ma in te -n a n c e or overhau l m a i n t e n a n c e fac i l i t y .

NOTE

CH-54 main and tail rotor blades shall be painted and balanced by the overhaul activity only.

C A U T I O N r e c c c v e r r o n n n e e s

Pain t ing of m a i n rotor , ta i l ro tor , a n d prope l le r b l ades m a y c r e a t e out-ot -ba l -ance and u n a c c e p t a b l e v ib ra t i on cond i -t ions . St r i c t a d h e r e n c e to i n s t r u c t i o n s is requ i red to reduce the p r o b a b i l i t y o f c r e a t i n g t h e s e o u t - o f - b a l a n c e cond i -t ions . Care m u s t be e x e r c i s e d to app ly p ropo r t i ona te a m o u n t s o f p a i n t t o e a c h b lade to ma in ta i n p r o p e r ba lance .

NOTE

C o m p l e t e repa in t i ng o f m a i n a n d ta i l ro to r b lades on UH-60 UH-1, OH-58 and

AH-1 a i rc ra f t is no rma l l y a c c o m p l i s h e d dur ing blade ove rhau t only . M a i n and

TM55-1500-345-23

t a i l r o t o r b l a d e s are i n d i v i d u a l l y bal-a n c e d ( s p a n w i s e a n d c h o r d w i s e ) t o m a s t e r b l a d e s d u r i n g o v e r h a u l a f t e r p a i n t i n g to i nsu re i n t e r c h a n g e a b i l i t y b e t w e e n b l a d e s o f the s a m e c o n f i g u r a -t i on . P a i n t i n g o f b l a d e s in the f ie ld m a y c a u s e s u b s e q u e n t i n t e r c h a n g e a b i l i t y p r o b l e m s .

6 - 7 . P R O P E L L E R S .

a. F o r t a c t i c a l a i rc ra f t .

(1) F o l l o w C h a p t e r s 9 & 10 on a s p e c i f i c a i r c r a f t i f it c o n t a i n s d e t a i l s a b o u t p a i n t i n g b lades , sp inne r or hubs .

(2) If su f f i c i en t da ta does no t e x i s t in

Chap te rs 9 and 10, the s tanda rd tac t i ca l f i n i sh shal l be A i r c ra f t Black, MIL-C-46168, No. 37038, on bo th sides.

(3) The ex te r io r su r face o f unp la ted hubs , fo re and aft , wi l l be pa in ted w i t h A i r c r a f t B lack .

MIL-C-46168, No. 37038.

(4) On OV-1 a i rc ra f t b lade da ta mark ings .

p rope l le r barrel, a n d d o m e assemb ly , m a r k i n g s shal l be as fo l lows :

(a) P a i n t a n O r a n g e - Y e l l o w . N o .

3 3 5 3 8 , b l a d e a n g l e c h e c k i n g s t a t i o n m a r k i n g . 0 3 7 5 i n c h w i d e a n d 2.5 i n c h e s l o n g a t 42 i n c h s t a t i o n o n t h e f a c e s i d e ( o p p o s i t e o f d i r e c t i o n o f f l i g h t ) o f b l a d e s .

(b) T h e b l a d e d r a w i n g n u m b e r .

ser ia l number , low, fea ther , reverse and c o r r e c t i o n ang les a n d the blade a l i g n m e n t re fe rence (B.A.R.)

va lue shal l be s tenc i l ed on the c a m b e r s ide (direc-t ion of f l i gh t side) of the b lade at m id -cho rd pos i -t ion. The le t te rs used sha l l be 1/2 inch high a n d p laced so as to be read f rom the t ra i l i ng edge. The le t te r ing sha l l s ta r t b e t w e e n the 18 and 24 inch s ta t i ons . These m a r k i n g s shal l be o range -ye l l ow .

b. F o r n o n - t a c t i c a l a i r c r a f t .

(1) T h e b l a d e s m a y b e p a i n t e d w i t h s t r i p e s p e r F i g u r e s 8-8, 8-9, 8-10, a n d 8 - 1 1 .

6-3

(2) On all propel lers, pa in t the a e i e the f ront side, and a i rc ra f t b lack on the o n

Plated hubs remain unpainted. Sp inners O t o

Painted as shown on f igure 8-8 and h o v e n i te OV-1 blade da ta wi l l be painted on neares w ne sec t ion between 18 and 24 inch s ta t ions i descr ibed above. Data on blade on an ae ra te o ther than OV-1. may be p laced on f i rs t whi te sec t ion f rom hub (spinner) and stenc i led in air- C r a f t b lack.

6-8. MAIN ROTOR BLADES.

a. For tac t i ca l aircraf t . The upper and lower Surface o f main rotor blades shal l be f in ished in Ai rc ra f t Black, MIL-C-46168, No. 37038.

b . F o r n o n - t a c t i c a l a i r c r a f t .

(1) T h e u n d e r S u r f a c e o f t h e b l a d e s s h a l l be f i n i s h e d in a i r c r a f t b l a c k .

(2) T h e u p p e r S u r f a c e o f t h e b l a d e s w i l l be p a i n t e d w i t h S t r i p e s p e r f i g u r e s 8-8, 8-10, a n d

8-13. N o t e t h a t t h e o u t e r t w o S t r i p e s are t h e s a m e On a l l b l a d e s .

(3) F o r a d d i t i o n a l V i s i b i l i t y in a r c t i c u t e r 2 5 % o f t h e b l a d e s m a y be p a i n t e d f l u o r e s c e n t r e q Orange . T h e r e m a i n i n g p o r t i o n o f b l a d e s w i l l be d i v i d e d i n t o 1 5 % b l a c k a n d w h i t e S e g m e n t s a s s h o w n in t h e f i g u r e s ,

(4) T h e C H - 5 4 s h a l l n o t

P a i n t s c h e m e b e c a u s e t h e i s i b l e w i t h o u t the st h a v e t h e S t r i p e d

SiZe Of t h i s a i r c r a f t r i p e d p a i n t s c h e m e , r e q u i r e d .

6-4

6-9. TAIL ROTOR BLADES,

a. F o r t a c t i c a l a i r c r a f t .

(1) Prime blade Surfaces P-23377 or MIL-P-85589.

cordance with Chapter 3, Poxy type

Apply p r i n : ra

(2) Both sides of the blades wi painted Aircraf t Black,MIL -C-46168. No. 37034 by

(3) The rotor hubs a nism shall be painted a i r c r a f mating, load bearing or dynam

Nd contro} t black, exc

Mech, . Spt 'C Surfaces, hy

b. F o r n o n - t a c t i c a l a i r c r a f t ,

(1) Prime blade surfaces P-23377 or MIL-P-85582.

cordance with Chapter 3.

with primer Mi.

Apply primer in a

(2) Bo th s i d e s of the b lades may

(3) A p p l i c a t i o n o f s t r i p e s t o tail rot b l a d e s i n v o l v e s a 2 0 % O f f s e t o f n o n - c

(4) T h e C H - 5 4 t a i l r o t o r s h a l l retain the

Stripes as i n d i c a t e d in C h a p t e r 9, insteado f the Str ipes in f i gu re 8-13.

(5) The rotor hubs and Control mech msm shall be painted aircraft black, except fo

Mating, load bearing or dynamic surfaces.

(6) For OH.g aircraft, the highvisibli Paint Scheme shalt be appl ied only at facilites having proper balancing equipment for the ors tail rotor blades. This Special handling isrequitél because of the cr i t ica l ba lanc ing of the OH4 rotor blades, Paint scheme may be changed al time of tail rotor assembly O v e r h a u l . . . 5+.)

y e " E yi h p a y s doe2Sotebb t e b e

T M 5 5 - 1 5 0 0 i 5 2 5

S e c t i o n l i l A I R C R A F T E X T E R I O R L A N D I N G G E A R A N D W H E E L S

0. L A N D I N G GEAR.

H e l i c o p t e r s . H e l i c o p t e r s s k i d s a n d s k i d f a c e s . e.g. . o l e o p i s t o n s w i l l n o t be p a i n t e d . L a n d -c t u r e s w i l l be p a i n t e d in t h e s a m e m a n n e r a s

| f u s e l a g e . w i t h a i r c r a f t g r e e n , M I L - C - 4 6 1 6 8 .

e n r e p a i n t i n g h e l i c o p t e r s . t h e s k i d s w i l l be o v e d f r o m t h e a i r c r a f t . t h e s k i d w e l l s a n d l o s u r e s w i l l be i n s p e c t e d . c l e a n e d a n d 6 - 1 1 . W H E E L S .

painted. The removed s k i d s w i l l be inspec ted .

ing gear of non-tactical aircraft wi l l be painted color 17925, MIL-C-83286.

c l&aned or s t r i pped . as app rop r i a t e . repa in ted and a. Whee l wel ls o f t ac t i ca l a i r c ra f t w i l l be re ins ta l l ed on the a i rc ra f t . pa in ted A i r c ra f t Whi te . No. 37875. per MIL-C-

46168.

Fixed W i n g Ai rc ra f t . Land ing gear of f ixed w i n g a i rc ra f t wi l l be p r o c e s s e d in same pa in t as b. Dur ing repaint ing. whee l wel ls wi l l be thor-thi f use lage . Ma t i ng , d y n a m i c or load bear ing sur- ough ly c leaned but not s t r i pped .

Sec t i on IV . W A L K W A Y COATINGS

6 9 2 . W A L K W A Y S . W a l k w a y c o a t i n g s con-fdining to Military Specification MIL-W-5044 will NOTE b e applied on wing roots and heavy duty exterior . .

t raff ic areas of all aircraft and overcoated with Walkways on OV-T/RV-1 aircraft will be

M{-C-46168, aircraft green or aircraft black. Walk- painted with MIL-W-5044, Type |, Class 1 way coating conforming to Mil i tary Specif ication Coating; these coatings will not be over- MIL-W-5044, Type Il may be applied directly over coated with MIL-C-46168.

any, pr imed, ename l led or ac ry l i c n i t ro -ce l l u lose ae anit Pet surfaces of the aircraft exterior. These * Application Procedures for Walkway Coat-a r e a s must be ove rcoa ted w i t h MIL-C-46168 air- ing, Mi l i ta ry Spec i f i ca t i on MIL-W-5044.

. c r a f t green or a i rc ra f t b lack . The w i n g root walk- ? w a y s wi l l be app l ied on bo th w i n g roo ts t o a wid th (1) App ly w a l k w a y c o a t i n g in a c c o r d a n c e o f 18 inches measured f r om the fuse lage and wil l w i t h app l i ca t i on i n s t r u c t i o n s in Mi l i ta ry Spec i f i ca -e x t e n d f rom jus t a f t of the l e a d i n g edge to j us t t i on MIL-W-5050.

f o r w a r d o f the t ra i l i ng edge. The exac t w i d t h may vary f rom the 18-inch r e q u i r e m e n t for s p e c i f i c air- (2) Af ter each coat, a l low a m i n i m u m cra f t . Sa fe ty walk, p ressure sens i t i ve m a t e r i a l dry ing t ime of 1/2 hour.

c o n f o r m i n g to M i l i t a r y S p e c i f i c a t i o n MIL-D-17951, Type Ill, may be used as an op t ion , bu t is no t rec-o m m e n d e d . When such m a t e r i a l s are used, t hey m u s t be overcoated w i t h MIL-C-46168 pa in ts . Par-t i c u l a r a t ten t i on m u s t be g iven the e d g e s to assure good a d h e s i o n and sea l i ng w i t h MIL-C-

46168 paint .

(3) Af ter f inal coa t , a l low w a l k w a y coat-ing to air-dry un t i l set t o t o u c h be fo re hand l i ng .

6-5

NOTE

Ful l hardness is at ta ined w i th in maxi -m u m drying t ime of 24 hours.

(4) Af ter w a l k w a y coat ing is complete ly dry. sand all edges to fair in with adjacent f in i shed area. W a l k w a y s wi l l not be pol ished or waxed.

(5) A p p l y M I L - C - 4 6 1 6 8 p a i n t o v e r e n t i r e c o m p o u n d a n d o v e r e d g e s .

6 - 1 3 . A N T I G L A R E C O A T I N G S . T o reduce glare, the top of the fuselage in f ront of the p i lo t 's compar tmen t on aircraf t is i l lust rated in Chapter 10 and the inboard upper one- four th of the engine nacel les forward o f the leading edges o f the w i n g s on the U-8, and the inboard and out-board nace l les of the OV-1 wi l l be painted aircraf t b lack. He l i cop ters painted wi th tact ica l paint s c h e m e s do not require ant ig la re paint forward of w indsh ie l d .

6-14. BATTERY COMPARTM ENTS.

a. N e u t r a l i z a t i o n .

(1) A c i d E l e c t r o l y t e . E x e r c i s e c a r e t o pre-v e n t a c i d f r o m S p r e a d i n g t o a d j a c e n t a r e a s . W a s h a r e a s a f f e c t e d b y b a t t e r y a c i d w i t h 20 p e r c e n t s o l u t i o n o f s o d i u m b i c a r b o n a t e , F e d e r a l S p e c i f i -c a t i o n 0 - S - 5 7 6 . in w a t e r . N e u t r a l i z a t i o n i s c o m p l e t e d w h e n b u b b l i n g c e a s e s . A f t e r n e u t r a l i -z a t i o n , r e m o v e a l l t r a c e s o f s o d i u m b i c a r b o n a t e s o l u t i o n w i t h g e n e r o u s q u a n t i t i e s o f v e n t c o r r o s i o n .

w a t e r t o pre-

(2) A l k a l i n e E l e c t r o l y t e . E x e r c i s e c a u t i o n t o p r e v e n t a c i d f r o m S p r e a d i n g t o a d j a c e n t a r e a s .

W a s h a r e a s a f f e c t e d b y e l e c t r o l y t e w i t h 3 p e r c e n t s o l u t i o n o f b o r i c a c i d in w a t e r . N e u t r a l i z a t i o n is

6-12 c o m p l e t e d w h e n b u b b l i n Ceas neu t ra l i za t i on , r e m o v e alj t races

. . le solution with generous quant i t ies of water? "

b. Trea tmen t A f t e r Ney affected area by swabbing wit of chromic acid, FederalSpec i f i ca t ion 0c t t f 5 percent of potassium dichromate, Feder o e ification 0-P-559, fol lowed by flushing With Spey and thorough drying. Waly t ra l i za t ion } NS percent "a,

c. Pa in t ing . A f te r the a b o v e ne Utralizatig t rea tmen t , a p p l y t h e f o l l o w i n g p a i Nan nt system;

(1) Apply two (2) coats of epoxy Polya ide primer, MIL-P-23377, Type | of Primes

MIL-P-85582.

(2) A p p l y (over t h e s e coats ) one (1)cog of pr imer c o a t i n g epoxy , MIL-P-52192.

N O T E

Coating (1), MIL-P-23377, is yellow, When wear, scratching, or other top- bo coat damage occurs, the yellow or © gray primer undercoats will be ex-posed indicating that repainting is necessary. This is essential to pro-tect a luminum or magnesium com- Posite structures,

d. Touchup. Using organizations may tout up the battery areas after proper neutralization.

(1) Acid Battery. One coat acid-pi!

varnish TT-V-51, &(2) Alkal ine Battery. One coat Mlk

83231, Type II Coating. :

CHAPTER 7

LETTERING A N D MARKING

Section I.

7-14, GENERAL.

a. The color for the m a j o r i t y of m a r k i n g s and let ter ing wi l l be a i r c ra f t b lack , shade number

37038, MIL-C-46168, on a i r c ra f t green or a i rc ra f t grey background. The c rew areas wi l l no rma l l y be marked in orange-yel low, numbe r 33538, MIL-

C-46168 on aircraf t b l ack backg round . See de ta i l s in Chapters 9 and 10.

b. Unless otherwise spec i f ied , use 1/2-inch h igh Arab ic numerals and cap i ta l le t te rs for mark-ings. If lettering shown in Chap te rs 9 and 10 can-no t be made on s tandard A rmy stenc i l cu t t i ng m a c h i n e due to odd size le t ters , go to the nearest s t anda rd size. For e x a m p l e (shown in f igure 8-2), /8 in. , r e p l a c e w i t h 1/2 i n c h . M a r k i n g s a n d le t t e r -ng m a y be r e d u c e d in s i z e t o s u i t c o m b a t o p e r a -t i o n .

c. Center i den t i f i ca t i on le t te r ing UNITED

STATES ARMY as near ly as poss i b l e on each side o f fuselage. Use 6-inch ver t ica l b lock let ters. Let-te r d imensions, pos i t ions , a n d loca t ions for each

S e c t i o n Il.

7 - 2 . LETTERING AND MARKING

MATERIALS.

a. Apply insignia with approved paint as ap-plicable and compat ib le wi th the exist ing finishes.

° Use decals conforming to paragraph 6-5, g e t Of Paint. if approved by AVSCOM, ATTN:

?AV-WK. 4300 Goodfe l low Boulevard, St.

Louis. Missouri 63120-1798.

MARKINGS

a i r c ra f t w i l l be in acco rdance w i t h i ns t ruc t i ons in

C h a p t e r 8. W h e n iden t i f i ca t i on le t te r ing UNITED

STATES ARMY does not fit on a l lo t ted space, use

U.S. ARMY or ARMY.

CAUTION

Cut t i ng o f fue l , oi l , hyd rau l i c , or o x y g e n l ines, o r e l ec t r i ca l w i r ing unde r c rash c o n d i t i o n s may resul t in a f i re or exp lo -s ion or inc rease the sever i ty of an ex is t -ing tire. Such poss ib i l i t i e s w i l l be taken i n t o c o n s i d e r a t i o n w h e n e m e r g e n c y escape areas are be ing c h o s e n fo r iden-t i f i ca t i on mark ings .

d. O u t l i n e c o r n e r s o f e m e r g e n c y e x i t s a n d r e s c u e e x i t a r e a s w i t h r i g h t - a n g l e c o r n e r b a n d s 1 i n c h w i d e a n d 3 i n c h e s l o n g a t e a c h leg . P a i n t co r -n e r m a r k s w i t h b l a c k , s h a d e n u m b e r 3 7 0 3 8 , M i l i t a r y S p e c i f i c a t i o n M I L - C - 4 6 1 6 8 .

INSIGNIA: GENERAL

7-3. GENERAL.

a. The Nat iona l S ta r Ins ign ia wil! no t be ap-p l ied to tac t i ca l a i rcraf t . The Na t i ona l Star In-s ign ia , of the des ign s h o w n in f igure 8-1, wi l l be p laced on other A rmy a i r c ra f t where requi red as par t o f an author ized pa in t scheme.

b. The ins ign ia wi l l por t ray an ins ign ia whi te, f ive-po in ted s ta r loca ted w i t h i n an ins ign ia -b lue c i r c u m s c r i b e d circ le. Th i s is referred to as the

7-1 a N

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w hi ch is st an da rd iz ed in m ul tip ie s o f

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7- 4.

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6.

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5.

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7- 5.

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7- 6.

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T he in si gn ia m ay bem ov ed fo rw ar d, oraf t, th e m in im um di st an ce re qu ire d toav oi d co ve rin g tr an sp ar en t m at er ia l orar ea s ex po se d to ex tr em e he at w hi ch w ou ld sc or ch orot he rw is e da m ag e th e in si gn ia

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(b

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H ow ev er sy m m et ry m ai nt ai ne d w ith th e U

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M ar ki ng s.

ic at i

(d) T h e w i n g i n s i g n i a w i l l b e s o a p p l i e d t h a t in n o r m a l f l i g h t a t t i t u d e . t h e t o p p o i n t o f t h e s t a r p o i n t s f o r w a r d . a n d a l i n e f r o m t h e c e n -t e r o f t h e i n s i g n i a t h r o u g h t h e t o p s t a r p o i n t p a r a l -le l t o t h e d i r e c t i o n o f f l i g h t .

} (2)

(a) The N a t i o n a l S t a r I n s i g n i a se lec ted fo r the wing wi l l no t exceed a m a x i m u m d i a m e t e r o f 60 inches, n o r m i n i m u m of 20 inches, (exc lud ing border.)

D i m e n s i o n s (f igure 8-1).

j (b) S t a n d a r d sizes for bas i c b l ue c i r c le d iameters w i l l be in m u l t i p l e s of 5 i nches b e t w e e n these l imi ts .

(c) T h e d i a m e t e r o f t h e b a s i c b l u e c i r c l e w i l l be t h e s t a n d a r d s i z e w h i c h is n e a r e s t t o , b u t d o e s n o t e x c e e d , 75 p e r c e n t o f t h e d i s t a n c e b e t w e e n t h e w i n g l e a d i n g e d g e a n d t h e a i l e r o n c u t o u t a t t h e p o i n t o f a p p l i c a t i o n .

a

2 (3) Hot areas. The Nat iona l Star In-s i g n i a and the iden t i f i ca t i on mark ing U.S. Army i l i no t be appl ied to hea t res is tan t f in ishes.

7-7. HELICOPTERS.

+a. Location.

: (1) F o u r N a t i o n a l S t a r I n s i g n i a w i l l be a p p l i e d o n t h e a i r c r a f t f u s e l a g e . T h e i n s i g n i a w i l l b e l o c a t e d so t h a t i t w i l l be v i s i b l e f r o m e a c h s i d e , f r o m a b o v e , a n d f r o m b e l o w . D u e t o v a r i o u s d e s i g n c o n f i g u r a t i o n s , t h e i n s i g n i a w i l l b e l o c a t e d a s n e a r t h e c e n t e r o f t h e a i r c r a f t a s i s p r a c t i c a l s o a s t o p r o v i d e m a x i m u m d i s c e r n m e n t . S u c h l o c a -

S e c t i o n Ill.

7-8 . A I R C R A F T . Those a i rc ra f t ass igned to t h e A rmy Medica l serv ice for use as ambu lance a i r c ra f t wi l l be painted to the s tandard tac t i ca l p a i n t scheme and wil l be marked w i t h a red cross cen te red on a wh i te f ie ld as shown in Chap te r 5.

The cross shai l be painted MIL-C-46168, A i rc ra f t Red, #31136.

TM55-1500-345-23

tions will be standardized on like model and series helicopters. The insignia may be moved the minimum distance required to avoid high heat areas. The insignia may extend over doors and emergency exits but wi l l not be ap-plied over windows or other such openings which would change the design of the insignia.

(2) The Na t i ona l Star Ins ign ia wi l l be app l ied on vert ical su r f aces so that in no rma l f l i gh t a t t i t udes , the top po in t of the star w i l l po in t forward in t he d i rec t i on of f l ight .

(3) If t h e m a i n f u s e l a g e s e c t i o n is n o t l a r g e e n o u g h t o a c c o m m o d a t e t h e m i n i m u m s i z e s p e c i f i e d , t h e s t a r i n s i g n i a m a y be p l a c e d o n s u c h o t h e r p a r t s o f t h e f u s e l a g e a s w i l l p e r m i t i t s b e i n g r e a d i l y seen .

(4) {If s p a c e l i m i t a t i o n s a n d c o n f i g u r a -t i o n s p e r m i t , a d d i t i o n a l i n s i g n i a w i l l be a p p l i e d t o t h e n o s e o f h e l i c o p t e r s t o p r o v i d e m o r e p o s i t i v e a i r - t o - a i r i d e n t i f i c a t i o n .

b. D i m e n s i o n s o f F u s e l a g e I n s i g n i a

(1) T h e d i m e n s i o n s of the i n s i g n i a w i l l be d e t e r m i n e d by t h e d i a m e t e r o f t h e b a s i c b l u e c i r c l e . T h e i n s i g n i a w i l l no t e x c e e d 50 i n c h e s in d i a m e t e r , n o r be l e s s t h a n 10 i n c h e s . T h e s e l e c t e d i n s i g n i a s i z e w i l l be n e a r e s t to, b u t no t e x c e e d , 75 p e r c e n t o f t h e f u s e l a g e h e i g h t a t t h e p o i n t o f a p -p l i c a t i o n . S y m m e t r y s h o u l d be m a i n t a i n e d w h e n a p p l y i n g t h e i n s i g n i a on e a c h s i d e o f t h e f u s e l a g e .

(2) If t h e a b o v e s i z e i s i m p r a c t i c a l f o r ap-p l i c a t i o n , t h e m o s t p r a c t i c a l s t a n d a r d d i a m e t e r w i l l be s e l e c t e d .

MEDICAL INSIGNIA

7-9. AIRCRAFT FIRST AID KITS AND

LITTERS.

a . F i r s t A i d K i t s .

(1) When pa in t ing iden t i f i ca t i on mark-ings on a i rc ra f t f i r s t aid kits, the red c r o s s w i l l be

7-3

TM585-1500-345-23

Section V. IDENTIFICATION LETTERING

7-12. GENERAL.

a. Style. Un less o t h e r w i s e spec i f ied . ident i f i -ca t i on let ter ing. ARMY. U.S. ARMY. or UNITED

STATES ARMY. wi l l be presen ted in vert ical b lock let ters. All le t te rs shou ld be of the same b lock des ign .

b. D i m e n s i o n s .

(1) For tac t i ca l TDA hel icopters and fix-ed wing ai rcraf t , the he igh t and loca t ion of let ter ing M a y vary on a i rc ra f t of d i f fe rent s ize and model and space avai lab le , but the size and locat ion of th is m a r k i n g wi l l be the same on all a i rc ra f t of the same model .

(2) F o r n o n - t a c t i c a l T D A h e l i c o p t e r s a n d f i x e d w i n g a i r c r a f t , l e t t e r s w i l l be o f u n i f o r m s i ze , w i t h t h e l e t t e r s s e p a r a t e d f r o m t h e n u m e r a l s w i t h a d a s h . D e p e n d i n g o n t h e f u s e l a g e s u r f a c e a v a i l a b l e , l e t t e r s w i l l be in t h e l a r g e s t s i z e p r a c t i c a b l e :

h o w e v e r , in n o c a s e w i l l t h e y be s m a l l e r t h a n 8 b y

12 i n c h e s , o r l a r g e r t h a n 32 b y 48 i n c h e s . T h e h e i g h t o f i d e n t i f i c a t i o n l e t t e r i n g n e a r t h e s t a r w i l l b e t h e d i a m e t e r o f t h e b a s i c b l u e c i r c l e . E x c e p t i o n o f t h e s e d i m e n s i o n s w i l l b e t a k e n w h e n t h e a l l o t e d s p a c e d o e s n o t a l l o w f o r t h e d i m e n s i o n s p r e s c r i b -e d h e r e i n .

c. Un i fo rm i t y . A i rc ra f t ident i f i ca t ion letter-ing w i l l be s tandard ized and un i fo rmi ty main ta ined on s i m i l a r t ype a i rc ra f t in each organ izat ion,

d. R e s t r i c t i o n . T h e A r m y i n d e n t i f i c a t i o n le t -t e r i n g a n d t h e N a t i o n a l S t a r I n s i g n i a w h e n a p p r o -p r i a t e , w i l l n o t b e a l t e r e d in l o c a t i o n , d i m e n s i o n , o r c o n f i g u r a t i o n f r o m t h e s p e c i f i c a t i o n s r e f l e c t e d h e r e i n t o a c c o m m o d a t e a n y m a j o r c o m m a n d a n d o r g a n i z a t i o n a l i n s i g n i a o r m a r k i n g .

7-13 . F I X E D W I N G N O N - T A C T I C A L .

a. F u s e l a g e . The fuse lage i d e n t i f i c a t i o n m a r k i n g fo r a l l D e p a r t m e n t of A rmy Reserve and

A r m y N a t i o n a l Guard a i r c ra f t wi l l c o n s i s t o f

A R M Y in ve r t i ca l b l o c k type let ter ing p laced on the

7-6 s ide of the f u s e l a g e . An &xCeption the case of aircraft painted in Gloss Cr® May white paint scheme. Army may be om, and g f Itte option of the local major fieig command, i

b. Wing.

(1) I den t i f i ca t ion . The identi lettering on wings of all Department of cae

Army National Guard, and UnitegStates 5 ny aircraft wil l consist of U.S. ARMY j type lettering of uniform size.

I

ESeh n vertical, blog,

(2) Loca t ion . Th i s Marking wil, t ra l l y p l aced on the l o w e r Surface of t h e| and upper su r face o f r ight wing as shown p l i cab le i l l u s t r a t i ons .

be ce, eft win

0 thea,

(3) D i m e n s i o n s . The height of this may ing wi l l be the same he igh t as the basicbluecirgs in the Na t i ona l S ta r I ns i gn i a on the opposite wip o f the ai rcraf t . W i d t h of le t te rs will be two-thir the he igh t o f the let ter : w id th of strokes ari

Spaces wi l l be one-s i x th the height of the lettes

The top o f the le t t e r s w i l l be toward the leadir edgeo f the w ing .

(4). NG. M a r k i n g NG wil l not be applet on a i r c r a f t w ings .

7-14. HELICOPTERS, NON-TACTICAL

a. General. The identification lettering the fuselage of all Department of the Army, Am

National Guard, and United States Army rest helicopters will consist of the letters ARMY?

ed on each side of the fuselage.

r k

b. S p e c i f i c A p p l i c a t i o n . The ARMY Ted ings wi l l be p laced on each side of the ru o s h e l i c o p t e r s as s h o w n in appropr ia te il lustra |

NOTE

san of

The paint to be used forapplication i letters and markings specified "© tions VI thru X shall be the samé va used to finish the surface to be 4 y

S e c t i o n V I .

145. PROPELLER AND ROTOR BLADE

WARNINGS, NON-TACTICAL AIRCRAFT.

NOTE

Provisions of section V! are subject to an international standardization agree-ment (Cento Stang 3250).

a. Exterior. That area o f the fuse lage wh ich is beh ind the p lane of the p rope l l e r path w i l l be m a r k e d w i t h a g lossy ins ign ia - red s t r i pe 3 i nches w ide . e x t e n d i n g c o m p l e t e l y a r o u n d the fuse lage .

excep t th rough an t i -g la re areas and when it does no t in te r fe re w i t h s t a n d a r d ARMY m a r k i n g s or i n s i g n i a . A 3 - i nch s p a c e wi l l be m a i n t a i n e d b e t w e e n the e n d s of the p rope l l e r w a r n i n g s t r i pe and any s tanda rd A r m y m a r k i n g or ins ign ia . The w o r d PROPELLER. read ing ve r t i ca l l y f rom the top to b o t t o m , wi l l be s u p e r - i m p o s e d in th i s s t r i pe in g l o s s y ins ign ia -wh i te le t te rs 2 inches high, p laced at su f f i c i en t l y f r equen t i n t e r v a l s t o i nd i ca te the d a n g e r o u s areas. The D A N G E R wi l l be a p p l i e d p e r p e n d i c u l a r to the w o r d PROPELLER on each s ide of the warn ing s t r ipe . w i t h an a r r o w p o i n t i n g f r om the DANGER t o w a r d the s t r i pe . Le t t e r s in the w o r d DANGER wil l be 2 i n c h e s high a n d the a r r o w s wi l l be 4 i nches long . The word DANGER a n d the ar rows wi l l be in g l o s s y ins ign ia - red , s h a d e No. 11136. Th i s m a r k i n g app l i es to all non-t ac t i ca l m u l t i e n g i n e a i r c ra f t .

b. Inter ior . O p e n i n g s used as ex i ts w i th in 6 feet of the propel ler d i s c wi l l have an ins ignia-red w a r n i n g st r ipe 3 i nches wide pa in ted on the i r in-s ide sur face. S t r ipes wi l ! ex tend f rom the center o f the fuse lage or the top of the open ing, w h i c h e v e r is higher, to the l owes t e x t r e m i t y of the open ing . The word PROPELLER, read ing ver t i ca l l y f r o m top to bo t tom, w i l l be supe r - imposed on the s t r i p e s in g l ossy ins ign ia -wh i te l e t t e r s 2 i nches high, p laced a t su f f i c i en t l y f requen t in terva ls t o i n d i c a t e the d a n g e r o u s areas. The word DANGER in g lossy ins ign ia- red wi l l be app l ied perpen-

TM55- 1500-345-23

WARNING STRIPES AND SIGNS

d i c u l a r t o and cen te red w i t h respect to the word p rope l l e r on each s ide o f the str ipe, wi th an ins ign ia- red a r r o w po in t i ng t o w a r d the str ipe. Let-t e r s w i l l be 2 i nches high and ar rows 4 inches long.

c. Tai! Rotor Mark ings , Non- tac t i ca l

T a i l r o t o r b l a d e s .(1) See C h a p t e r 6.

(2) Tail rotor wa rn ing mark ings , tac t i ca l . See C h a p t e r 9.

n o n -

d. Tai l Rotor Mark ings , Tact ica l .

(1) T a i l r o t o r b l a d e s . S e e C h a p t e r 6.

(2) T a i l r o t o r w a r n i n g m a r k i n g s . P a i n t w a r n i n g a r r o w s A i r c r a f t B l a c k . # 3 7 0 3 8 . P a i n t w o r d

D A N G E R a b o v e w a r n i n g a r r o w in A i r c r a f t B l a c k

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7 - 1 6 . O V - 1 A I R C R A F T . A warn ing s tenc i l t o p r e v e n t i n j u r y t o p e r s o n n e l p e r f o r m i n g m a i n t e n a n c e on OV-1 ai rcraf t , i nco rpora t ing air c o n d i t i o n i n g sys tems , sha l l be ins ta…