20 mm Mk 2 Oerlikon 1943.pdf

ORDNANCE PAMPHLET NO. 911

20 mm. A. A. GUN

20 MM. MACHINE GUN MECHAN ISMS MARKS 2 AND 4

20 MM. GUN BARRELS MARKS 2, 3, 4, AND 4 MOD. 1

20 MM. SIGHTS MARKS 2, 4, 4 MOD. 1, AND 5

20 MM. MAGAZINES MARKS 2 AND 4

20 MM. SHOULDER RESTS MARKS 2, 4, 5 AND 5 M09

DESCRIPTION

MARCH, 1943

SH IELD

CLAM PING LEVER--

--- COCKING WIRE ROPE

ZO mm. A. A. Gun on Mark 4 Mod. 3 Mount

PREFACE

Thi:: OrC::::~.:-:cc Pa;..i=::~c: ;\o 911. is:" re\'ision of the Gun Section o( Ordnance P<lmphlcr ~o. s:J

and dc:sc::bd the c.;~~:: _c:.• :. <.....::;u:i..r:, ;md miJ, intena.nce of rhe 20 nu11. A.A. Guns.

:1-ddi~:..;:- .... (::~;.-:c-e p..:O:!c~tions re!~tins: co the use o f the 20 mm. A.A. Guns ate:

-~ "'"'· ~lounts )lark 2. Mork 2 Mod. I, Mark 2 Mod. 2 ; Mark 4, Mark 4 Mod. I.

~:.rk <~led. 2. Mark 4 Mod. 3: Mark 5, Mark 5 Mod. I, Mark 5 Mod. 3, Mark 5 ~led.

; ~l>rk 6; Mark 10 and :Vlork 10 Mod. !.

O.P. 909

-20 mm. A.A . Range Tables.

-Gun Sight Mark B Mod. 2-1nstallMion and Opemrion.

0.0. H29

st..:. ~o. 103308-20 mm. Ylachine Gun and Mount lndex.

Ordalt No. 118&-20 mm. Cradles M.:t.l'ks 2 and 4-[nstn>Ctions ior :Neces:sary ModifiC:.1tion for .'\!;sembly

of C un Sight Mark B .

20 mm. Machine Gun Mechanism :".l:'l.r ks 2 a:ld 4-20 mm. Hand Grip$ and Shuutd~:

R.. .-sts :\larks 2 ~utd 4-ln:ilructions {or :\ddin~ Ur..inagc Hole~.

Ordalt No. l226-

Ordalt :-lo. 1260-20 mon. Cradle ~lark 2 and ~lork 2 :11od. I.

20 mm . Cradle )r::t.rk -4 o.nd ).l ark 4: .:Vtod. 1-lnstructions for l11~t."l!lation of Cock1ng

Shelve.

Ord.n. lt Xo. 1300-20 mm. Shield ;\(ark 2 : 20 mm. Shidd 2\f:l.rk 4.-l;lscruccioll:s for ~£<>dific:uion ol Shic.C

Br.~.<:keu.

Ordalt Xo. 1366-20 mno. Cradle ~l~rk 2 >nd ~lark 2 )1od. I.

20 mm. Cr.~.dlc ).·lark 1: J.r.d ).J:Jrk -1. ).1<...-.d. 1-

lnstructions for Cradle ;.\Iodili.c:don t'-'

Facilic:ue Diuss~mbly.

Ordalt No. 1395-20 mm. Shields Marks 2 and 4-lmprovement of Sigh c.

Ordalt No . 1398-20 mm . Mounts :\larl.."S 2·and 4-Chal\ge$ co Improve Lubrication.

Ordalt 2\'o. 14$i-2\lodi:!i.C;ttioa of 20 mm. Sight ).l;..rk 4 Mod. 1.

The :\1ark l Gun was the origln3l type made in Swic~rland. T he :vi'ark 2 is i:he improv'!d .. ~~~·

n1adc in England and also being made io U.S. A. The Mark 4 Gun is almost id entical w:;h 2\Ld.: 1 .:.. ~- •

ior !lightly different mnnufacturing limits. Both :\larks 2 and 4 Guns will bt: found in s~rv:ke .n ~'1~: :._·

:\o.vy, but eventuaJir only the :\1ark 4 wiH bt: manufactured in this cuuncry.

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