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The Littoral Environment
Air Attack
MissileAttack
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ASuW Asymmetric Threat Massed attack by very small, fast, agile
craft
- The Boghammer Threat Size: ~ 4sq m (frontal area) Speed: 40-60
Kts Threat: rocket attack/suicide
mission/terrorist/specialforces
Number: ~10 to 25
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Issues Arising from BoghammerThreat
To prevent attack from enemyweapons - RPG/ATGW, etc.
Minimum Keep-Out-Range
Key Issues: Detection Defeat
Max. engagement range. Pk at range. Rate of Fire. Stowed
on-mount ammunition. Time to Acquire & Slew.
Multiple target attack
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Advantages of BurstingMunitions
Gun Systems withconventional impact fusedammunition.Probe. Hit -
Very LowProbe. Kill - High
Millennium Gun Systemwith AHEAD burstingammunition.Probe. Hit -
Very HighProbe. Kill - High
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Millennium Multi-Role GunSystem
SHIP
TRACKINGDEVICE
WEAPON DIRECTIONSYSTEM
MDG-35 GUN MOUNT
35mm AHEAD BURSTING
AMMUNITION
ON-MOUNTTRACKER
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Method of Operation 35mm Bursting ammunition -
precision release of sub-projectilesin front of target
Increased Hit Probability with highKill Probability
High Payload delivery >1000rpm Error budget tolerant
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Effectiveness on Target
Witness Plate from single35mm AHEAD round
Aircraft Fuselage
Millennium Gun System
Coverage from salvo
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Fixed Probability of KillNo of rounds for 90% P roba bility of
Kill a ga inst e a ch of TEN Ta rge ts
0
5
10
15
20
25
30
35
40
45
50
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000
Ra nge (m )
N
o
.
o
f
R
o
u
n
d
s
Engagement range for 98 rounds
Engagement range for 200 rounds
-
0
0.2
0.4
0.6
0.8
1
1.2
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000
In itia l in te rc e p t ra n g e (m )
P
r
o
b
a
b
i
l
i
t
y
o
f
K
i
l
l
35m m Millennium (high RoF)
30m m Generic (low RoF)
Probability of killing ONE Boghammer
Modelling assumes 20 round burst Kill defined as 4 hits in 22.5m
area
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0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0 500 1000 1500 2000 2500 3000 3500 4000
Keep Out Range (m )
P
r
o
b
a
b
i
l
i
t
y
o
f
K
i
l
l
35mm Millennium (high RoF)
30mm Generic (low RoF)
Probability of Killing TEN Boghammers
Modelling assumes 20 round burst 5 secs allowed for each target
engagement (based on 90 arc of incoming craft) Ten craft at 40knts
distributed over depth of 300m Kill defined as 4 hits in 22.5m
area
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Average Number of Kills against TENBoghammers vs. Keep out
Range
0
2
4
6
8
10
12
0 500 1000 1500 2000 2500 3000 3500 4000
Ke ep out Range (m )
A
v
e
r
a
g
e
N
u
m
b
e
r
o
f
K
i
l
l
s
35m m Millenn ium (h igh R oF)30m m Generic (low R oF)
M ode lling a ssum e s 20 rounds in burst
Average number of kills = Expected value of the Binomial
distribution B(n,p) :where n=10 and p= i.e. average P of each craft
in 10 target engagement10 )10( killsP
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MILLENNIUM SCENARIO
SRS
WDU1Target
prediction
WDU2Aim point prediction
OWNSHIP
TIS
TARGET
TARGET EFECTS
PROJ.LAUNCH
MEASUREDENVIRONMENT
PROJ.FLIGHT
GUN
System Analysis
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Programme StatusMountdevelopedfromexistingnavalsystem.
100% gunfunctionalitywithSkyWhipsystem.
35mmAHEADin-servicewith 3countries.
Millenniumfiringdemonstrationmid-99.
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SummaryBenefits delivered by theMillennium Gun System:
95% Pk against singleBoghammer target at 2500m.
95% Pk of defeating all 10threats at 1000m.
Payload delivery of >1/2 tonneper minute.
Flexible integration withCombat System.
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Millennium Gun -AssuredDefence in the Littoral
Environment
