separate the effects of dynamic pressure on damage to vehicles from
It follows
the effects of positive duration on damage to vehicles.
therefore that the effect on damage resulting from the long pcaitive
duration is still to be determined and that the validity of the
probability curves for damage as a function of ideal dynamic pressure
remain to be proven.
It is of interest to point out that if the damage to the jeep at
13,090. feet (Shot 6) wes severe then a more favorable comparison would
exist for displacement as well as dauage between Shot 6 (CASTLE) and
Shot 110: (UPSHOT-KNOTHOLS).
‘The damage to the jeep at 13,090 feet
could ‘just.aa likely have been severe since during tk2 transient time
of the vehicle being displaced the manner cf impact of the vehicle
with the ground would itself be a probability function.
The displace-
ment and damage then would be approximateJy similar at 13,090 feet,
Shot 6 and 2415 feet, Shot 10. In each case the vehicles were intact
except that on Shot 10, the vehicle required depot maintenance to restore to combat use which is considered as severe-moderste damage and
on Shet 6, the vehicle required field maintenance which is considered
.
moderate jiamage.
If the comparison was as indicated above the scaling from Shot 6
conditions to Shot 10 conditions for displacement of jeep as well as
the damage to jeep would be. approximately wil3, At each of two
locatiors on Shot 6 and Shot 10 the displacements were approximately
equal. “nat is at 9,000 feet, Shot 6 and 1,920 feet, Shot 10, the
displacements of jeeps were 290feet and 310 feet, respectively. Also,
at 13,090 feet, Shot 6 ond 2,415 feet, Shot 10, the displacements were
75 feet and 72 feet respectively,
R
2 | 2
reclr
1
=)
or
x
R
=
2
:
x
=
9000
1925
0.33
w,
Me
an
i
\ 1
\
x
13,090
- Sr
or x « 0,36
Therefore, for reasonable estimates of ground range for specific
damage to 1/4 ton trucks, the scaling for various yield weapons can be
as wl where W is the yield of weapon.
24