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e
A N
25 )
e
A N
\Ve olall here fllbjoin
3
table exhibitin. the names
of dIe feveral cannon, their !eogth, Iheir
~clght,
and
thal of Ihm ball.
Names of eannon.
weight of
I
weigh!
Icngl!'
an iron
of the
of the
ball,
eannon,
nnnon,
---
lb, oz,
lb,
f, ioeh,
per, to make the metal more drnfe ancl eompa
t ;
fo
that the helttr and heavier ,he eopper is, ,he I<fs tin
is
r~quired,
Some to an hundred pouods of eopper,
add ten of tin, and eight of brafs; others ten of tin"
five
o(
brafs, and ten of lead, The Cieu r fierrau pre–
tends, thal \Vhen old pieces of metal are ufed, ,he
founder ought to add to one huodred weight of that
mm l, twenty-five pounds of Rood eopper, and n.e
pounds of tio, Braudius deferibes amethod of makiog
eannoo of leather; and it is eertain the Swedes made
ufe of fueh in the long \Var of Ihe lall eentury; but
thefe burtl too eafily to have mueh etretl, \Vith re–
galu to iron eannon, they are not eapable of fo mueh
refinanee as thofe of brafs; bllt as they are lefs ex–
penfil'e, they are oflen ufed on board of Ihips, and alfo
io feveral fortified vlaees,
Cannon royal
4
8
o
8000
12 o
Cannoos are ditlinguilhed by lhe diameters of the
balls they carry, The rule for their length is, ,hat it
be fueh as that the whole eharge of powder be onnre,
before the ball quit the pieee, If it be too long, the
quaOlilYof air
10
be drawn out before ,he ball, will
gil'e tOO mueh refinanee
10
Ihe impulfe; 3nd thal im–
pulfe ce?fing, ,he fritlion of the ball againn the furfaee
of ,he pieee will lake off from themotion,
lo former day!, eannoo were made mueh longer
than they are noll'; but experieoee has taught
I:S,
that a ball moves with a grealer impetus throuch a lefs
fpaee than a grealer : aoel aeeordiogly it is found, that '
an i,on ball of forty-ciehl pound weight goes farther
[,001
a olon eanooo, thao another ball of nin<ly-fix
pound out of a longer pieee; whereas, io other re–
¡petls, it is eenaio, theJarger the bore aod ball, the
greaw the range,
It is fouod tOO, byexperienee, that of tIVO eannons
of equal bore, bm ditrerent leogths, the longer re–
quires a greater eharee of powder than the Ihorter,
The ordinary c1urge of a eanndn is, for Ihe weight of
its gun-powder tObe half that of its ball,
Pieees of eaoooo
I
of
24
I
of
16
¡;>
~
; '
¡;>
; '
2
n
2
n
;,-
~
;,-
Demi eannon large
3
6 o
6000
t
2 o
Demi eannoo ordinary
3
2
o
S600
J
2 o
Dcmi eannon lean
3
0 o
54
00
11
o
Cull'erin largen
20 o
4300
J
2 o
Culverin ordinary
J
7 S
4\00
1'2 o
Cull'Crin lean
J
í
o
4000
11
o
Demi eul.erin ordinary
10
'1
27 00
It
o
Demi culverin leall
9
o
2000
10 o
Saker ordin3/y
6
o
ISOO
lO o
Saker lean
4 12
' 4CO
8
o
Minion largen
3
' 2
' 000
8
o
Minion ordinary
3
4
800
7 o
Falcon
2 8
7So
6
o
Falcone!
,
S
400
S
6
Rabinet
o 8
3
00
S
6
Bafe
o
í
200
4
6
Cannon are likeIVife ¡\ininguilhed aeeording to the
diameter of their mouth, or calibre, This ealible is
dil'ided, in eooCequenee of an order from the kin
o
01'
Franee, iOlo thirty-fix pans, in order to
detcr~ine
by thefe pans the dimeofions of the different lUoulds
for eaonon, We hope the reaner, then, \ViII not be
dio;lIisfied to find
V1
aeeount of Ihe dimenlions of the
feveJal pans of eannon of five ditrcrent calibres, as
they are regulated by Ihat order of Iheking of Fr.anee,
on Otl, 7, 1732, in the following table:
of
12
of 8
of
4
-----------
~
¡;>
S' S'
~
;'
~
¡;>
~
S'
2
n
g.
~
g.
~
;r
:;;
¡;
:;;
Leogth of the bore
9
6
9
2
8 8
7 10
6 6
~---------------------- ------
Oeplh of the Ghamber
2 '
6
I
10
Thiekoefs of metalat
breeehf---~ --;~---;-4
3
9
, 3
f----------------- ---------
Leogth of the eafeabel
10
II
9
'61
8 8
7 7
6
------ -------------------
Diameter of the tTUoioos
S S
4 9
1
'1
4
3'
o
3
------------------ -----
Projetlioo of the truoions
, S
S
4 9
1
4 4
j'
o
3
---- -
------------
___ S_8___ __ 4__ '_'
_:1____
4__ 6 _,___ 3_'_1_,___3 ____
2_
<)
91
4 , 4
Calibre of the piece
Oiametcr
oC
the ball
6
Leogth of the wholc pieee
-,-,----- - '-0--6 --1-,-0--- - -8--;;-
-7-~--
Weie"t of Ihe pieee
I
j200
~t OO
I
t
10
lb,
VOL . II.
No. 3"
t
G
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