1. DSG Technology Supercavitating Ammunition
Commercial in Confidence © DSG Technology AS

2. Most Effective Solution for Self Defense
Multi Environment Ammunition™ (M.E.A.)
Enhancing capabilities of 7.62mm, 12.7mm, 20mm, 25mm, and 30mm applications with standard weapons
Delivers greatly increased range, improved stopping power, penetration and
multi-environment capabilities without modification to existing weaponry
Underwater, Water-to-Air, Air-to-Underwater, Air-to-Air
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3. Commercial in Confidence © DSG Technology AS
Background
Problems with the current ammo
Conventional rounds lose significant velocity when fired from the air through or into water. Trying to defend against water-borne attacks , such as swarming boats, where rounds have to penetrate a water barrier, such as a wave, to hit the target is, therefore, futile.
Conventional rounds in route to a target, instead of entering the water, may ricochet off the water’s surface and lose velocity, proving futile against a swarm attack.
Swarming surface boat hard-kill is one of the applications of supercavitating rounds.
While various forms of supercavitating ammunition have existed for many years, they typically require very steep angles of incidence (>60 degrees) in order to enter the water from air, making such ammunition ineffective for shipboard use to defend against a swarm attack.
Cavity
Water
Projectile
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4. MEA Advantages Up to 20% extended effective range in air
compared to other AP ammunitions of similar caliber from same weapon
Up to 20% increased effectiveness in armor penetration at range*
Extreme penetrating ammunition – water, armor, materiel, sand, mud
Very low angle target penetration –
> 2 degrees into water from air
> 15 degrees into armor or curved hard surfaces
Very low ricochet risk from water surface
Hit targets above or below water line
Projectiles effective through multiple air / water /air (waves)
Projectiles can carry tracer, fuze or HE for secondary destructive effect
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5. Commercial in Confidence © DSG Technology AS
MEA Benefits
Supercavitating MEA rounds are able to enter from the air into the water while maintaining their destructive power
MEA rounds enter or leave water at very low angles (> 2 degrees)
MEA rounds enter the water without danger of ricocheting, even when multiple air/water/ entries are involved
i.e. passing through waves
MEA rounds are
Stable in air and water
Spin-stabilized in air and cavity-stabilized in water
Capable of penetrating steel targets underwater up to 60m for 12.7mm
MEA bullets can penetrate water, sand, and mud (wet or dry)
Bullet profile enables highly effective penetration of difficult materials including dry or wet sand and mud. Bullet remains intact & effective
Firing rounds from existing shipboard guns offers a highly effective and cost-efficient hard-kill defense
MEA can effectively engage close-in targets
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6. Commercial in Confidence © DSG Technology AS
MEA Performance
Caliber Underwater range
30mm
200m/600ft
150m/450ft
20mm
12.7mm
60m/200ft
25m/80ft
7.62mm
12m/38ft
5.56mm
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7. Commercial in Confidence © DSG Technology AS
MEA Features
Low angle water entry
Low angle armor piercing (cylindrical shapes)
Multiple-layer targets
From Air & Water to Air & Water
Caliber-sized holes (depending on application)
Hydro-static shock & direct effects of cavity in water
Extended range in air by up to 25%
Standard weapons
Multiple patents
Scalable across calibers
Commercial in Confidence © DSG Technology AS

8. MEA Performance (Effective Range)
Air Range
(Supersonic)
Caliber
Underwater Range
12.7mm
>2,000m
60 metres
7.62mm
>1000m
30 metres
5.56mm
800m
15 metres
Note: Just requires changing to MEA ammunition!!
Commercial in Confidence © DSG Technology AS

9. SHOOTING FROM THE AIR INTO THE WATER (RANGE 10M)
MEA 7.62x DCS
SPECIFICATIONS
Bullet type
DCS
Bullet weight (g)
14.2
Core weight (g)
Core diameter (mm)
7.62
SHOOTING IN THE AIR
X (range in m)
V (velocity in m/sec)
E (energy in Joule) 10
660
3093
200
576
2356
400
497
1754
600
425
1282
800
364
941
1000
323
740
SHOOTING FROM THE AIR INTO THE WATER (RANGE 10M) 5
437
1356
290
597 15
193
264 20
129
118 23
100 81
Samples available
In production now
No sabot
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10. Commercial in Confidence © DSG Technology AS
Target Effectiveness
7.62 DCS
7.62x51
DESCRIPTION
RANGE
Max supersonic range in air
>3100 feet
Max effective range in water
75 feet
Will penetrate through >6mm steel plate underwater at
22 feet u/w
Will penetrate in >6mm steel plate underwater at
38 feet u/w
Will penetrate 2.5mm steel plate underwater at
75 feet u/w
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11. Commercial in Confidence © DSG Technology AS
Target Effectiveness
7.62 DCS
7.62x51
Standard AR-15 weapon fired air to water
15 degree water entry
22 feet underwater range
6 mm steel target
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12. Target Effectiveness 7.62 DCS
Location of the plate
Sea trials with air to water at low angles
Shooting from position 1 and position 2
Target is submerged 6mm steel plate
Depth: approx. 6-7m water depth
7.62x51 DCS ammunition Std G3 rifle
Penetrated a 6mm steel plate
Commercial in Confidence © DSG Technology AS

13. SHOOTING FROM THE AIR INTO THE WATER (RANGE 10M)
MEA 12.7x APSX
SPECIFICATIONS
Bullet type
APSX
Bullet weight (g) 60
Core weight (g) 53
Core diameter (mm)
12.6
Muzzle velocity (m/sec)
780
Recoil Momentum (kgxs)
6.7
SHOOTING IN THE AIR
X (range in m)
V (velocity in m/sec)
E (energy in Joule)
500
651
11230
1000
524
7270
1500
402
4280
2000
326
2820
SHOOTING FROM THE AIR INTO THE WATER (RANGE 10M) 10
627
10420 20
510
6890 30
415
4560 40
338
3030 50
275
223
1320
Samples available
In production now
Discarding sabot
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14. Commercial in Confidence © DSG Technology AS
Target Effectiveness
12.7 APSX
DESCRIPTION
RANGE
Max supersonic range in air
>6300 feet
Max effective range in water
200 feet
Will penetrate >12 mm steel at
100 feet u/w
Proven against torpedo at
75 feet u/w
Commercial in Confidence © DSG Technology AS

15. Shooting from the air into the water at range 100m41
Calculated characteristics of 20…30-mm ammunition with “Type R” underwater projectile
Ammunition
20x102
20x128
25x137
25x184
30x173
Ammunition length, mm
168
203
223
288
290
Projectile weight, gram 97
110
172
222
250
Core weight, gram 72 82
130
180
190
Core diameter, mm
12.7
15.6
17.6
18.0
Core area, cm2
1.26
1.91
2.43
2.54
Muzzle velocity, m/sec
1160
1300
1120
1180
1340
Recoil momentum, kg x s
16.8
22.4
31.8
44.6
59.7
Shooting from the air into the water at range 100m
Velocity
“V” (m/sec)
and energy
“E” (k Joule)
at underwater range “X” (m) X V E 30
700
902
33.4
781
39.6
831
62.2
984
92.0 60
423
6.4
625
16.0
545
19.3
585
30.8
722
49.5 90
256
2.6
433
7.7
380
9.4
412
15.3
530
26.7
120
155
0.9
300
3.7
265
4.6
7.5
389
14.4
150 -
209
1.8
185
2.2
204
286
7.8
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16. Shooting from the air into the water at range 100m
Calculated characteristics of 20…30-mm ammunition with “Type F” underwater projectile
Ammunition
20x102
20x128
25x137
25x184
30x173
Ammunition length, mm
168
203
223
288
290
Projectile weight, gram
110
120
170
190
230
Core weight, gram 85 95
130
150
Core diameter, mm
9.0
Core area, cm2
0.64
Muzzle velocity, m/sec
1080
1240
1130
1270
1390
Recoil momentum, kg x s
17.2
22.8
31.8
43.9
59.1
Shooting from the air into the water at range 100m
Velocity
“V” (m/sec)
and energy
“E” (k Joule)
at underwater range “X” (m) X V E 30
705
21.1
876
36.4
897
52.3
1039
81.0
1165
115 60
461
618
18.1
712
32.9
850
54.2
976
80.9 90
301
3.9
437
565
20.7
695
36.2
817
56.7
197
1.6
308
4.5
449
13.1
568
24.2
685
39.9
129
0.7
218
2.3
356
8.2
465
16.2
574
28.0
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17. Shooting from the air into the water at range 100m
Calculated characteristics of 20…30-mm ammunition with “Type U” underwater projectile
Ammunition
20x102
20x128
25x137
25x184
30x173
Ammunition length, mm
168
203
223
288
290
Projectile weight, gram
105
115
165
220
250
Core weight, gram 82 90
125
180
200
Core diameter, mm
12.7
14.5
16.0
16.5
Core area, cm2
1.26
1.65
2.0
2.13
Muzzle velocity, m/sec
1110
1270
1150
1190
1340
Recoil momentum, kg x s
17.2
22.6
31.5
44.6
59.7
Shooting from the air into the water at range 100m
Velocity
“V” (m/sec)
and energy
“E” (k Joule)
at underwater range “X” (m) X V E 30
770
24.3
940
39.8
883
48.7
991
88.4
1163
169 60
534
11.7
697
21.9
678
28.7
825
61.2
992
123
370
5.6
516
12.0
521
17.0
687
42.5
854
91.2
120
257
2.7
383
6.8
400
10.0
572
29.4
735
67.5
150
178
1.3
283
3.6
307
5.9
476
20.4
633
50.1
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18. Comparison of “W” parameters for 30mm ammunition
E – energy of collision between core (bullet) and target
S – area of contact between core (bullet) and target
Parameter of effect upon target & explosive:
W = E x S (k Joule x cm2)
Ammunition
30x173
Projectile type R U F
RAMICS
Parameter “W” at underwater range “X” X W m
k Joule x cm2 30
233
360
73.6
50.1 60
125
262
51.8
25.6 90
67.8
194
36.3
13.0
120
36.6
144
25.5
6.6
150
19.8
106
17.9
3.4
At 150metres underwater range, MEA types have up to 31 x greater Kinetic Energy Area compared to MK258 projectile – from same weapon
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19. Comparison of “W” parameters for 30-mm ammunition
Parameter of effect upon target & explosive:
W = E x S (k Joule x cm2)
E – energy of collision between core (bullet) and target
S – area of contact between core (bullet) and target
Ammunition
30x173
Projectile type R U F
RAMICS
Parameter “W” at underwater range “X” X W m
k Joule x cm2 30
233
360
73.6
50.1 60
125
262
51.8
25.6 90
67.8
194
36.3
13.0
120
36.6
144
25.5
6.6
150
19.8
106
17.9
3.4
At 150metres underwater range, MEA types have up to 31 x greater Kinetic Energy Area compared to MK258 projectile – from same weapon
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20. Other Options: 20 – 40mm MEA Rounds
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21. Commercial in Confidence © DSG Technology AS
Supercavitation & ASW Applications
Anti-Torpedo Solution (Hardkill)
Last 250 meters defense of ships – the ‘Inner Ring’
Arming Unmanned Underwater Vehicles (UUV)
Defense against airborne threats, from below surface
Diver support
Mine Counter Measures
Not just from helicopters
Swarming Surface or Submerged Threats
Ship defense using standard weapons
New capabilities - Tactic Changing – Rule Changing
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22. Medium & Larger Caliber MEA
New Capabilities
for Undersea Defense
12.7mm to 40mm
(and up to 155mm)
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23. Commercial in Confidence © DSG Technology AS
MEA: Solution for Armada threats
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24. Commercial in Confidence © DSG Technology AS
Low Angle Capability
MEA
Other supercavitating ammo
min. 2 degrees
min. 60 degrees
Thus only MEA Supercavitating Ammunition can be used from low angle needed to fire from ships
target
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25. Anti-Torpedo Solution
Enhanced Effects of the ‘Super’ Cavity:
- near misses are still effective
- destructive effect of collapsing cavity even with 200mm near misses
- cavity persists in water (more than 30meters for 30mm)
- increases chances of affecting target
- hydro-static shock extends damage-radius
- more than 1 meter radius in surrounding water volume
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26. Proven Anti-Torpedo Effect
30mm cavitating core (underwater projectiles)
Shooting of inert 324mm MK-46 type torpedo
Sea water at
range of 125m
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27. Surface & Submerged Swarming Threat
Midget Sub/Semi-Submersible
like a bigger, slower torpedo
Swarming Surface Attack Boats
MEA not deflected by waves, even at low angles (>2 degrees)
Bullets pass through waves/air and penetrate
target above or below surface
Standard Weapons
CIWS with automated fire control
.50 caliber deck gun
MEA is an effective solution
– even when submerged
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28. Commercial in Confidence © DSG Technology AS
UUV & Submarine Defence
threat
range <1000m
angle >2deg
u/w gun mounted
with MEA
armed UUV
.50 cal
threat
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29. More Capabilities with MEA
Without MEA
30 mm cannon required
Heavy weapon
Excessive recoil
9mm penetrator
Fins required
High angle ( >60 deg) needed
Must be helicopter fired
Multiple passes required for
detect to engagement sequence
With MEA
12.7 / 20 / 25 / 27 / 30 mm MEA
Lighter-weight weapon
Acceptable recoil
12.7 mm and larger
With or w/o fins
Very low angles ( >2 deg)
Ship, land, or air platform
MEA can neutralize naval mines from high or low angles
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30. MEA for Swarming Surface Threats
MEA Options:
12.7mm APSX -IN PRODUCTION-Muzzle-discarding sabot design
20mm –Ready for production
25mm –Ready for production
30mm –Ready for production
Standard weapons
M2HB or MK 49 Mod 0 (12.7mm)
20 mm Phalanx
Mk-38 25mm machine gun
Mk 46 Weapon Station with 30mm
Spin-stabilized projectile, nearly full caliber
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31. Commercial in Confidence © DSG Technology AS
Other Applications
Surface swarming threats
Semi-submersible and submerged threats – visible but not otherwise defensible from helicopters.
Mine counter measures, using 12.7mm to depths of 40 m
Mine counter measures, using armed UUVs or ROVs (12.7mm to 30mm)
Torpedo Hardkill – from ships or helicopters (using HF Sonar integrated with CIWS and MEA)
Exceptional material penetration: including, ground, soil, mud, sand, armor – and water
Extended capabilities for any weapon used or carried over water, on any platform.
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32. Reference Points
NATO NIAG Study 159 ‘Hardkill Torpedo Countermeasures’, recommended MEA supercavitating gunfire as the best complementary hardkill solution to Anti-Torpedo Torpedo for ship defense. (Reported June 2012)
A European navy has successfully trialled MEA 12.7 APSX against torpedo with ‘fatal damage’ to real (static) torpedo, fired from air to water with single shots, through 25 metres water at 15 degrees angle of incidence. (Scaled trial: actual application will use Medium Calibre).
DSGT has proven MEA effectiveness against real torpedo at 125 metres underwater range, using 30mm MEA, penetrating at very low angles.
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33. Commercial in Confidence © DSG Technology AS
Summary - MEA
Supercavitating ammunition scalable to all calibers
MEA works in water, from air to water, water to air
Proven, patented technology
Standard weapons
ASW, TCM, UUV & MCM unique solutions
New and enhanced capabilities, new applications
Small caliber enhanced performance for SOF
Improved stopping power, greater range – bridges a caliber gap
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34. DSG Technology supercavitating Multi Environment Ammunition™
IT&T
McLean, VA 22101 *
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