to

Positive phase duration, ms

Duration of shock pulse, ms
to

Negative phase duration, ms
(to)F

Duration of blast pressure at a point on the wall
farthest from the charge, ms
t'o

Design duration of positive pressure, ms
ts

Positive phase time of interest, ms
ts

Negative phase time to interest, ms
TN

Natural period of vibration, ms
U

Transmission velocity, ft/ms
V

Volume of cubicle, ft3
Vo

Initial fragment velocity, fps
Vs

Fragment velocity at some distance from explosion, fps
W

Charge weight, lb or oz
Wc

Casing weight, lb or oz
Weff

Effective charge weight, lb
Wf

Fragment weight, oz
_
Wf

Average particle weight
y

Verticle distance, ft
Z

Scaled distance, ft/lb1/3
[alpha]

Constant which determines the form of the pT curve
[rho]a

Density of air, oz/in3
[lambda]d

Scaled charge depth, ft/lb1/3
[lambda]x

Scaled horizontal distance, ft/lb1/3
[lambda]y

Scaled vertical distance, ft/lb1/3
2.0867