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HISTORY AND CONSTRUCTION]

ORDNANCE

213

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|+Table XVIII. -Sir W. G. Armstrong, Whitworth & Co.’s Guns. Abridged Table. |-style="border:1px solid black;text-align:center;" |Official Designation
of Gun.||Calibre.||Weight of
Gun.||Weight of
Charge.||Weight of
Projectile.||Muzzle
Velocity.||Muzzle
Energy.||Perforation
of Wrought
Iron.||Rate Of
firing
Rounds.||Propellant. |- |||In.||Tons.||℔.||℔.||Ft.-Secs.||Ft.-Tons.||In.||Per Minute.|| |- |12 in.||12||69||318||850||2960||51,640||51·5||2|| |- |10 ,,||10||36||200||500||3000||33,318||44·0||3|| |- |9·2 ,,||9·2||28||138||380||3030||24,190||40·8||4|| |- |8||8||21||90||250||3000||15,600||34·9||5|| |- |7·5||7·5||15·75||76||200||3000||12,481||32·1||6|| |- |6||6||8·75||35·5||100||3050||6,492||26·0||9|| |- |4·7||4·7||3·3||15||45||3000||2,808||19·1||12|| |- |4||4||2·1||11||31||3000||1,934||17·3||12|| |- |3||3||1·1||5·75||14·3||3050||922||13·9||30||Semi-
automatic |- |6 pr.||2·24||·52||||13||2400||240||7·3||25|| |- |3 ,,||1·85||·25||·625||3·3||2300||121||5·7||25|| |}

Note.-The most powerful gun of each calibre has been selected.

Table XIX.- Vickers, Sons and Maxim's Guns. Abridged Table.
Official Designation
of Gun.		Calibre.Weight of
Gun.		Weight of
Charge.		Weight of
Projectile.		Muzzle
Velocity.		Muzzle
Energy.		Perforation
of Wrought
Iron.		Rate Of
firing
Rounds.		Propellant.
In.Tons.℔.℔.Ft.-Secs.Ft.-Tons.In.Per Minute.
12 in.1266·85344850301053,40053·02
10 ,,105850280046,19547·433
9·2 ,,9·227.8184380307024,83541·34
8 ,,814·1590216·7309014,35033·96
7·5 ,,7·516·080·3200300712,54032·38
6 ,,67·84310031907,05627·910
4·7 ,,4·723·11745·1430502,91018·512
4 ,,42·111·253130301,97517·615
330·953·62512·5270063210·825Semi-
automatic
6 pr.2·24·521324002407·328
3 ,,1·85·281·0663·32800179·47·530


Table XX.—Krupp’s Naval and Coast-Defence Ordnance. Abridged from Table of Ordnance, 1906.
Official Designation
of Gun.		Calibre.Weight of
Gun.		Weight of
Charge.		Weight of
Projectile.		Muzzle
Velocity.		Muzzle
Energy.		Perforation
of Wrought
Iron.		Rate of
firing
Rounds.		Propellant.
In.Tons.℔.℔.Ft.-Secs.Ft.-Tons.In.Per Minute.
30·5 cm.12·0147
52·2		357771·6
981·0		3251
2884		56,540..
53·0		2-3
28 „11·0236·4
40·4		2767595·2
760·6		3255
2881		43,75452·0
49·0		2–3The explosive
for the
24 ..9·4522·93
25·45		173·6374·8
474·0		3255
2894		27,54044·5
42·0		3–4charges of
guns of 105
cm. and up-
21 ,,8·2715·20
16·90		115·2249·1
308·6		3251
2920		18,10138·6
36·5		4–5wards con-
19 ,,7·4811·37
12·64		86·2187·4
235·9		3241
2890		13,57235·0
33·1		5–6tains 25% of
nitroglycerin
17 ,,6·78·55
9·48		64·6141·1
176·4		3238
2897		10,25932·0
30·3		6–7
15·5 ,,5·915·5
6·2		41·790·4
112·4		3245
2910		6,60327·4
26·1		6–8
12 ,,4·7223·1 86 821·7246·3
59·5		3274
2887		3,442(22·2
20·8		15-20
10·5 ,,4·131·92
2·13		14·5530·9
39·7		3281
2897		2,30619·5
18·3		20–25
9 ,,3·541·287·7219·84
25·13		3162
2812		1,37716·0
15·0
1·457·9419·84
25·13		3248
2887		1,45216·5
15·6		25–30The explosive
for charges
·744·4811·463165797? 13·3
7·5 „2·9514·54628121213·9of guns up
to 9·5 cm.
·844·6111·46
14·55		28878403 5). 13030-40contains 40%
nitroglycerin
5·72·243672·034? 6 4 728s4 .3699·51'940-50
5·0 ,,1·97·2201·323·42
4·3		3242
2890		2498·7
8·4
·2481·373·42
4·3		3242
2890		2499·0
8·75		40–50

Note.—The most powerful gun of each calibre has been selected.

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