Estimation of the Barrel TOF Response A.Galoyan, J. Ritman, V. Uzhinsky
ARDEC, Picatinny Arsenal 16 & 17 July 2012 Constrained Layer Dampening Barrel technology
10
Click here to load reader
description
ARDEC, Picatinny Arsenal 16 & 17 July 2012 Constrained Layer Dampening Barrel technology. Summary. Radial Mean Dispersion improved ± 48% σ improved even more Demonstrated to 500 meters No noticeable degradation over 1,700 rounds Tested: 5.56, 30.06, 308, 338 Lapua . . . . - PowerPoint PPT Presentation
Transcript of ARDEC, Picatinny Arsenal 16 & 17 July 2012 Constrained Layer Dampening Barrel technology
ARDEC, PICATINNY ARSENAL16 & 17 JULY 2012
CONSTRAINED LAYER DAMPENINGBARREL TECHNOLOGY
Auto Bolt LLC PROPRIETARY
Summary
Radial Mean Dispersion improved ± 48% σ improved even moreDemonstrated to 500 metersNo noticeable degradation over 1,700 rounds Tested: 5.56, 30.06, 308, 338 Lapua. . . .
Dreadnought™ rifles consistently show similar R.M.D. {0.61±0.02 M.O.A.}
Auto Bolt LLC PROPRIETARY
Summary – Kolmogorov-Smirnov
83.8% probability base rifles dissimilar100.0% probability Dreadnought™ caused
accuracy improvement99.5% probability Dreadnought™ B and
C Rifles dispersion identical100% probability Dreadnought™ affected
muzzle velocity
Auto Bolt LLC PROPRIETARY
Summary – 338 Lapua Wander
1 2 3 4 5 6 7 8 9 10 1105
10152025
Cumulative Wander vs Target
baseline 300 mDreadnought 300mDreadnought 500 m
Sequential eight round target groups
Cum
ulat
ive
Wan
der
(inc
hes)
0 1 2 3 4 5 6
-3
-2
-1
0
1
2
Baseline 300m-1 0 1 2 3 4 5
-7
-6
-5
-4
-3
-2
Dreadnought™ 300m
0 2 4 6
-5
-4
-3
-2
-1
0
Dreadnought™ 500m
Auto Bolt LLC PROPRIETARY
Summary – Super Dreadnought™
High-loss acoustic waveguideNo weight penalty – soldier proof20% R.M.D. improvement over
Dreadnought™More complicated computer model
Can the physics be simulated?
Auto Bolt LLC PROPRIETARY
Summary – Acoustic Analysis
0.5 0.6 0.7 0.8 0.9 1.0 1.10.05
0.07
0.09
0.11
0.13
0.15
0.17
0.19
R² = 0.694756277975609
Rifle accuracy vs mean |Λ(1.0-1.5)|
rifle accuracy (minutes of angle)
mea
n |Λ
| (1.
0 to
1.5
mill
iseco
nds)
r = -0.829
B Rifle
C RifleSuper Dreadnought
Unmodified Savage
Loctite failure
Auto Bolt LLC PROPRIETARY
Elastomeric Material Characterization
Sample deliveryShrinkage example {~summer 2010}Environmental sample {July 2010}3 Alternate materials: drop test
Loctite FAILED Epoxy.com #964 SUCCESSFUL EAR Specialty Composites ?
Auto Bolt LLC PROPRIETARY
Modeling Considerations
Dreadnought™ or Super Dreadnought™?Existing prototype or new weapon?
Dreadnought™: 5.56 (1); 308(2+1); 30.06 (1) Super Dreadnought™: 338 Lapua (1+1)
Field test by Auto Bolt or ARDEC or both? Caliber? Ammunition loading and by whom? Range?
Auto Bolt LLC PROPRIETARY
Classification Question
No commercial activity being pursued currently.
Can classification issue be resolved?If classified, can CRADA be modified?
Auto Bolt LLC PROPRIETARY
Patents
Dreadnought™ patent statusPursuit of Super Dreadnought™
