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Ballistics, 2nd Edition
book

Ballistics, 2nd Edition

by Donald E. Carlucci, Sidney S. Jacobson
August 2013
Intermediate to advanced content levelIntermediate to advanced
608 pages
21h 36m
English
CRC Press
Content preview from Ballistics, 2nd Edition
84 Ballistics: Theory and Design of Guns and Ammunition
This simplies our distance–web fraction relationship to
d
d
x
f
M
xl
f
=−
+
+
()
()
1
θ
(3.95)
The dimensionless nature of M can be shown if we note that c and w
1
are mass units. We
can also write the units of the burning rate coefcient as
[] []
ββ
=
⇒=
D
p
f
t
B
2
d
d
LT
M
(3.96)
The units of the propellant force, λ, are
[]
energy
mass
ML
T
L
M
L
T
velocity
2
2
λ
=
=
=
2
[]
(3.97)
Using these in our denition of the central ballistic parameter, we can show
[]
[]
M =
×
=
L
LT
M
MM
L
T
6
2
2
2
0
(3.98)
thereby demonstrating that M is dimensionless. Equation 3.95, repeated here,
d
d
x
f
M
xl
f
=−
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Publisher Resources

ISBN: 9781466564374