Department of the Air Force Report, 1996

Text

This text came with the file. It may have mistakes. When the text and the image disagree, the image is right.

15 .---~------.---~-----.
1o ,
!
!,
!104
!
Atla~ I IAS
, -! -5
All f\1ode P1
1
, - ­ -, 10-6
1
!
! -----! 10
!
................ r......................1".....................r.............................................T.................. .
-
E
C:-
5 I
I
I
I
...............!...­....................,.......................1.......................;.......................i.................. .
~
c
CCI
....
-~
•
l
i
~-------~--------r------­
i
-~--------,
!
1·
i -----­
i
!
i
,--t
.,,,. ..... -r ­ - -
...,. - - - -+ - -­ - -i­ -
,~; ___'
i
-­
:o!s..
_: ­
[_-1:.~:-:i=-==~-l~:-~~1.::::.i.~=
!
:
!
:
0
. ____ I
I
I
I
-10 -
···- ' ........._ ....................................................,--·············.......... ­
:
: 8 = 5,000,00Q
A= 6.30
l
-15 ....__....____
i
_ _.___ __.___....__.....__ _
__,
!
i
-5
0
5
10
15
20
25
Downrange Distance (nm)
Figure 21. Atlas HAS All-Mode Ship-Hit Contours with A = 6.30
6.2.4 Range Distributions of Theoretical and Simulated Impacts
Earlier discussions had to do with how well the angular part of the Mode-5 impact
density function could be made to agree with angular data derived from simulated
random-attitude turns. A similar procedure was used to- test agreement between the
range part of the Mode-5 impact density function and the simulated data. For this
purpose, beginning at 15 seconds random-attitude turns were made at 2-second
-intervals out to 279 seconds, assuming no breakup and breakup qcx:'s of 5,000 and
20,000 deg-lb/ft2. At each time, 2,000 trajectories and impact points were computed,
giving a total sample of 266,000 for each breakup condition. For each impact point, the
range from the pad was computed, and the total number of impacts calculated in 10­
mile range intervals out to 350 miles. Impacts beyond this range were placed in a
single range category. The percentage of impacts in each range interval was then
computed and plotted as shown in Figure 22.
9/10/96
58
RTI