Post on 28-May-2020
fi;
W'
'IN
I Mí- t J i1 îÂilir
T' :-~jn.rT «•«nn- • v~rjff r ■-m-ncig^
nFPBnnurrn *r 9 »m*r*r ■ T' .-..-5 .W.
====E======S
cx> %“■* OC)
CV)
10 01
< I
D <
V * <* ^»1; - ,I,.IH|, .1 '1
All vw
n^P KT NO. 7lu/00 • A ,
..
!w-
"li'
HARDNESS SURVi-'/S OF PtN ET RATIONS IN HOMO-
ni tMinniirrn ai nnvi iinmi ni i vi.r ^r)(
THIS REPORT AVAILABLE IM MICROFICHE ONLY
I ;•«.«-« l-'i
" ■«'
REPORT P'O ) f A i .LUI. n A rp H n T Q O t p t f r^v;’ r\ % / '■> / > I A lb ill b i n i 1 •• U I bl/ m4
DISTRIBUTION OF REPORTS
Ä Ó ... TITLE..
AuPhor
Lnb- File
Main Ofi’lce File
ChifiT of Ordnance
Technical Staff
S p r .1 n gf i e 1 d A rm o ry
T;ntervl let Arsenal
Rock Island Arsenal
F rank f o rd A r s s nal
Picatinny Arsenal
Aberdeen Proving Ground
Chief, Bureau Ordnance
Naval Gun Factory
Chief, Bureau C & R
Local Circulation
Available for special circulation-
0 ther e gtabl1shnen t s requesting work,,
Private Parties paying for work
Lo¬ cal.
1 ^
1 ,/
1
Other C rd .
iVork
1
1
<_> f, 01
•_)
'll
t,l f.i
_Aj:rr;y_
1
1
1
Hr
1
1
1
1
1
1
1
3
Pri. y a te
].
1
1
1
1
1
1
1
1
1
1
1
welding and a a directed
1 as directed
1
i '
>
f
Hardness Surveys of Penetrations In Homo-
geneous Armor Plate of High, Medium, and Poor
Ballistic) Properties.
I j
T!
ii.iliwuiiUl.1(..,il-,, 111,.(1,,1..,.n..i.»vM.:i‘kimií»IUUUÍ?l<Ul«l»H4i:itSJC*om.||Siir<'
Round
Round
Round
Round
Round
Round
PLATE MO. 614 -• 5-
DiaSTOM “ Homogeneoua Armor Plat#.
Id X 18 X {". Actual Thlcknenna " .^Oo11.
Brlnoll - 430-41-14,
C Mn fii 1 £ ill flîl ËA .¾
51 .42 .14 .013 -016 .09 1.21 .56 .¾
Aranunition - .)0 o&l. 1Ö5 P"- M1922. A.P.
Ranga - 100 yard».
Spoolfloatlon - AXfl - 5^*
1. -ill. Val. 2696 f/ö. Compltt® Pont trat Ion. J ■ ' f
Dlaiû. of Hole In Hack ~ .70'1.
2. sir. 1©X. 2656 f/a. Complete Penitratlon. C.I.P.
4-. str. f«l. 2459 f/e. Partial Penetration.
Dlatn. of Kola In Back - .005".
5. str. Völ. 2495 f/ö* Partial Penetration.
Mao. of Hols In Back - «Ol”.
9. str. Vel. 2409 f/e. Partial Penetration.
Height of Bulge on Baok - .0511.
10. utr. Vel. 244-6 f/e. Partial Penetration.
Height of Bulge on Back - .OS".
r/VK
¿ - o
£ ..P
j.fíT£
ii¡nii
■ íil’;1 W i
¡1
vp? inr-“- ; IE Jl! ! ':,:,Í;.:'i]
ni . ;^.:... f
i iffi * t>- Cv J»
*a'.:.f . :¡| :. ¡ ...
:1 4 iP
1 $ k»
.n~:.: :i
:. .. a B ?
! ¡ 3 Äf y:,' ' fV*' •**••—
r* ■ no i • ■ : . ' ' •• k : '1 :. OJ , f \ * > K
U fn /'
y ”
D
. ^. ■■ &.;.:í : „0 ...
/ / 1 ; .... ., p—. ... I
s. ; OxX..
■■ktX. ;1 ! ! i ll 1
;... VICKEK'S
..Ufc*.-H'«-
ja
-ÍA-..
B/r/HElt
, i. ■ “1—
^ ;
i- ;
13> ^
"n t)
■"tjc; SE:
;£■' -:1-
.
'■■T"
-¾ ■ «
J> ! .,
;X
;& > ■
ï
Hl . . O ,
tí: :<.>■
10
"¡flSí;
b /
tv,
.. .ir\ i.. 1 ' '
A , ¡>1-
' ? Cif,
■ 0 h*
.A
llllíllj i li li
4I| ¡s
! j
i;| . ¡ >"T
|jî;
"JC
H...JU».
II
-j:.
Ui í4U«t. 1»
af
ab ae1
ru
. «;>
6
:t> íi>
1: ¡
\3> J
'/■ r::r
p a
■ o D
'tí. ^ 5
'Am .¾) ^-.¾. -HO
. N. < i N <! .1 i V V
•t:
o.sJ'On ''Vn'
í-x
K nXi. K 'x 's'‘1 '
■V'V'vy **''•%
X,>\\N v\V\\\ \W\X\
‘nXÀiXSs \\,n :xxxc\;
\\^SNX.Xs<KX \ S,;1 ;■ *\ S' m \ • ^1 \l\VS Cs;.vöaW\:\'\\\v.
es*'
“llil IH I r* , I
PLATE NO. EX ?£.
I
DIS3TON - Homogenooua Armor Plate.
1Ö X 1Ö X Actual thlcknesB - .SOP"
Brlnell - 402-410.
£ m 8k ä l Ql M Ï&
.3s .69 .17 .65 .30
Ammunition - .30 cal. 165 gr. M1922 A.P.
Rang® - 100 |&rds.
apoclflcfttlona - • AX0.- 5^»
Round 1. atr. Vel. 2672 f/p. Complete Penetration. C.I.P.
Round 4. Btr. Vol. 2704 f/s. Complete Penetration.
Diam. of Hoi® In Back. - .41".
Round 5. Str. Vel. PÓ96 f/a. Complete Penetration. C.I.P.
Round 6. Str. Vel. f/a. Complete Penetration.
Dlais. of Hole in Back ~ .01".
Height of Bulge on Back -• .06".
Round 7- Str. Vol. 2206 f/a. Partial Penetration.
Height of Bulge on Back - .03“.
Round 0. Btr. Vol. ?371 f/a. Partial Penetration.
Height of Bulge on Back - .0511.
»
Si ' lí M' -..... .rf. 1
Round,
Round
Hound
PLATE HO. 23.
DÏ8ST0H - Konog«n«auo Amor Plat©.
lí? X 12 X 1". Actual thloknees - 1.0l65M.
Brin® 11 - 4HS.
£ Hi SI È £ SL M2 lã .50 .?0 .25 .020 .023 1.12 .65 .23
Ammunition ~ .50 oal. 750 gr. M~l. a.P.
Han®'« - 100 yard®.
Spaoifloatlon - 3I.
1. Str. V«l. 2499 f/i. Partial Penetration.
Height of Bulge on Back ~ .0111
Depth of Penetration - .77".
2. Str. Vol. 256S t/a. Partial Penetration.
Height of Bulge on Back - „CilS”.
Depth of Penetration - .98”-
3. Str. Vel. 2!54o f/o. Partial Penetration.
Height of Bulge on Back » . öS,e .
Depth of Penetration - .9611.
Í
F ñC€
I PLATE WO. 2.
TAYLOR - WHARTON - Homog®nooua Armor Plato
12 )t 12 X I" Actual thlokneoa - .491 •* .493"
Brine11 - 255
ç 8a ëL S £
1.17 11.4o .405 *010 .057
Hadfield Mangan®»® Stool, chromium plated on front mid®.
Ammunition ~ .30 oa!> I65 ®r. M1922. A.P.
Range - 150 foot.
fiouind C. Str. V®1. 2215 î/ô* Complote Penetration.
C.I.P. i|
Round D. Str. Val. 2357 í/a- Completo Penetration.
Height of Bulge on Back - .14" I
Dlara. of Hole In Back - .25" ,'iï
Round E. Str. Val. 22S3 f/e. Complot® Penetration. {
Height of Bulge on Back -• .17"
Dlam. of Hoi® in Back - .25" jg
Partial Penetration - Str. V©1. 1800 f/o.
r
IJ
JÔ Jî
V'y
I
¿tr
7¿4 s
O"
?
rrtCE ' C
F Pí-fít,
CABBON STEEL PLATE.
Hoinogoneous Carbón Stool Plato.
?nrt¿
jo
rx
/j
PLATE NO. TO
JEÛSQP - Homogsneouo Armor Plat®.
12 X 12 X I". Actual thlcknooa - .^96"
Brlnoll - 555•
C Mn 91 8 P Ml Cr
.425 «66 2.01 .010 .024 3.5a 0.24
Ammunition - .30 oal. 165 gr. M1922. a.P.
Bango ~ 100 yards.
Specification ~ 31«
Round 3. str. Vol. 2599 F./S. Partial Panotratlon.
Height of Bulge on Back - .01".
Round. 4. str. V®1. 2602 F /8. Partial Penetration.
Haight of Bulge on Back - .01M.
Bound 9. 8tr. V®1. 29^5 P /9- Partial Penetration.
Height of Bulge on Back - .01".
¡; ,. ■■
¡ ï: P
Si-
L-\-
&
h ■k *
•rw
■s $
(S ..Uv, »V
...g
r> ¾
: !, Si
in;; N T,
"S'
...L
-'3v o
ïb ’: . k i
Îï"! (f*
tn £
I i
''H>:
" " Il
M
“Hll
k'
.& ÇK-
a C.
* ^ È-Î-R.S ~ g fe §
. .1
r>. V
1.* & f i;-'
.f.,,..1
.«__
%
;^rr
<.
:
.:
I fllj Ü1 .: 1
V •! , ;,H !;. Sli!|!'!!liil!-f|
f! I
i ,, ,,ra
!!! i : ' : i : :,1. . . .. ! :; : •' : i
; 11:..:.1,,^
: 1
Mi.
•¡1,/, i' iplii '[
!!;; :! !
: • ■ i -ijll ::::: î
..t
II !¡| ! i; • : i
' ’ ! Tk V5|£
<»s'Hhs. -.
:-1::1:1 :
. ... .
t :.î 1 . ! ” ! * n i:;v : ; I ::5.:,-....1
., r ‘IO » 1
Ca >, Ss
::.1:/,
,
: ! ':■ ■ ! ■ : i
"■¿k.t
8 1 ;
K...«• b ^ S > O <
■ ' ■
! r
:.;|i!¡: y
" c.
ÍÍ,
o
-
,,
S'P
1 !
.
: .:..i.-.
^i,.:.:: : ; i
. !
.:-.¾. I,,-,,- t 5 ! . : !■
S ■ ! ■ 5
íii¡ I
Round
’’fWI'î?!*!".
GAñTJ.NO WO. A.
Carburetor Cover
WATERTOWN ARSENAL Caflting.
2l| » 15 % I"
Brin®11 - 4lfl.
■c- a S £ £r & a
Î?—-018 -010 i-jj .«? .si
Araraunltlon - .30 o„l. l65 gr. M19;>2 A.p.
Range » 10Q yards.
Spoolfication - AX3 - 54. Rev. ?.
16 ’ Str- ParUal pen0tl.atl0n.
Height of Bulge on Back - ,02w.
Depth of Penetration - .46».
--juhh i MnwfHwtiii h ati^iiiiiihiiniiiiipiiiiiiiiiiiiiitt,
.? V . ; • ‘ ' '-;v««»It
i
..fVÍ- ¡
•I
scm£. . ,/z./:a /. -U
‘/Ití ,7'7./vg ' /Va.... ß, r 77Q.-V A/o. : /6.
' ' „9"'/ó' 9 , ;. .. ...
! -
/h¿i?ii.0£ :tífi*o#£S¿. 0(^1/¾^ ' . '/7d„... V/tik£&'s
ï. 35 y a/. £ÍíC£5SÍ ..<?£. WC? /fís Äif/A'1/:'¿i.