[email protected] · 08mk0512_jm ndia presentation.ppt (18).50 cal srta ballistic...
TRANSCRIPT
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© 2007 General Dynamics Ordnance and Tactical Systems-Canada inc.
National Defense Industrial Association Small Arms Symposium May 2008
.50 cal Short Range Training Ammunition
Author: John [email protected]
National Defense Industrial Association Small Arms Symposium May 2008
.50 cal Short Range Training Ammunition
Author: John [email protected]
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GD-OTS Canada New .50 cal SRTAGD-OTS Canada New .50 cal SRTA
Project Objectives
Current Training Ammunition Products/Projects
Concept
Performance– Simulations
– Test Data
Applications/Benefits
Summary
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Project ObjectivesProject Objectives
To develop an improve .50 cal SRTA – Eliminate need for weapon adaptors/ancillary equipment
– Increase effective ballistic match range
– Increase functioning reliability
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Current Product.50 cal Limited Range Training AmmunitionCurrent Product.50 cal Limited Range Training Ammunition
Non-toxic, 45g bullet with rear fins to limit range
Functions in M2HB and QCB machineguns
Ball and tracer versions in production since 2001
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Current Product.50 cal LRTACurrent Product.50 cal LRTA
Accuracy of 30 cm at 550 m range
Ballistic match up to 800 m with M33
LRTA = Max range of 3,500 m or 50% reduction vs. M33
Now in service in 3 NATO armies
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Current Product SHORT STOP® 7.62 mm SRTACurrent Product SHORT STOP® 7.62 mm SRTA
7.62 mm SHORT STOP® training round
Available in 4B/1T configuration
Now in Production for DoD as M973 & M974
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Current R&D ProjectSHORT STOP® 5.56 mm SRTACurrent R&D ProjectSHORT STOP® 5.56 mm SRTA
Ballistic match to 100 m with max range of 600 m
Under final development with ARDEC
Phase III recently awarded
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.50 cal SRTA Concept.50 cal SRTA Concept
The .50 cal SRTA Cartridge is:– Our newest Short Range Training Solution
– An Internally-funded GD-OTS Canada R&D program
– Now in test and evaluation phase
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.50 cal SRTA Concept.50 cal SRTA Concept
SRTA performance objectives:– No modifications of M2 machinegun
– Improved ballistic match with M33/M17
– Reliable functioning from –20 to +50ºC
– Non-toxic components
– Max range of 700 m
– Frangible projectileNo splashback beyond 25 m
– Improved performance vs. M858
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.50 cal SRTA Concept.50 cal SRTA Concept
The .50 cal SRTA has:– A monolithic, frangible projectile
– Forward fins with controlled spin technology to limit rangeFins introduce a "reverse" spin/drag, opposing rotation
The projectile quickly becomes dynamically unstable
– Very good accuracy due to consistent ballistic performanceYaw on target is trade-off for greatly reduced max range
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.50 cal SRTA Performance.50 cal SRTA Performance
SRTA performance Objectives/Results– Objective: ballistic match with ball round at 150 m
Result: > 200 m match range possible
– Objective: Drop of < 15 cm compared to ball at 150 mResults obtained: < 5 cm
– Objective: Mean radius Dispersion < 30 cm at 150 m Results obtained: < 15 cm
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.50cal SRTA vs. M858 Comparison .50cal SRTA vs. M858 Comparison
.50 cal M858 Ball and Tracer M860 training rounds– Type classified in 1983 and introduced in the US DoD
– Requires use of M3 Recoil Amplifier Barrel Assembly
– Muzzle velocity is approx. 4,000 feet per second.
– Plastic projectile mass is approx. 3.3 grams
– Ballistically comparable to M17/M33 out to 150 meters
– Maximum range of 700 meters
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.50 cal SRTA Ballistic Simulation.50 cal SRTA Ballistic Simulation
Comparison of ballistic drop with M858 at 150 m
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Horizontal distance (m)
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(m)
.50cal SRTA
.50cal M33
Vertical Drop .50cal SRTA Vs .50cal M33
.50cal SRTA Ballistic Simulation.50cal SRTA Ballistic Simulation
Comparison of ballistic Drop vs. M33 Ball round
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.50 cal SRTA Ballistic Simulation.50 cal SRTA Ballistic Simulation
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Velocity decay vs. M33 simulation with PRODAS
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5m 68m 185m
Shadowgraph images from DREV spark range
.50 cal SRTA Ballistic Testing .50 cal SRTA Ballistic Testing
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.50 cal SRTA Ballistic Testing.50 cal SRTA Ballistic Testing
Typical Drag vs. Velocity curve measured
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.50 cal SRTA Ballistic Simulation.50 cal SRTA Ballistic Simulation
Maximum range simulation with PRODAS– Less than 700 m
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MAXIMUM RANGE (ELEVATION: 22.5°)MAXIMUM RANGE (ELEVATION: 22.5°)
X (m)juil 20,2007Prodas2000 V3 Arrow Tech Associates
.50CAL SRTA
.50CAL M33
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.50 cal SRTA Ballistic Testing.50 cal SRTA Ballistic Testing
Ballistic match and accuracy tests at 150 m, June 2007– Reference is M33
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.50 cal SRTA Ballistic Testing.50 cal SRTA Ballistic Testing
Frangibility testing at 50 m range– No penetration of a 10 mm armor plate
– No splashback at 25 m after 30 shots fired
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.50 cal SRTA Ballistic Testing.50 cal SRTA Ballistic Testing
Minimal barrel fouling in M2 barrel observed
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.50 cal SRTA Applications/Benefits.50 cal SRTA Applications/Benefits
Training Applications/Benefits– Maritime training with limited surface danger-zones
– Used on reduced safety template ranges
– Training with reactive steel targets
– Fired on “Lead-free” ranges
– Enables engagements with targets on 2nd and 3rd floor windows or on overpasses
– Reduces friction created by units competing for range time
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.50 cal SRTA Applications/Benefits.50 cal SRTA Applications/Benefits
March-April 2008 edition of Infantry Magazine– Article entitled: “SRTA allows 360° Training Capability”
– At Fort Riley, Kansas: “SRTA is 1st Division's means to produce one awesome, realistic and simple training event.”
– “Only SRTA can provide free-thinking using fire and maneuverin a 360° training environment because of the SDZ”
– “SRTA allows trainers to condense the battlespace”
– “SRTA ranges can be created from maneuver spaces”
– Because of the increases in land resources the training tempo has increased.”
– “Without SRTA, the 1st Division and the U.S. Army transition team trainers would face significant and difficult obstacles”
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MSR
7.62mm Ball
5.56mm,7.62mm & 12.7mm SRTA
SP
FP
Convoy
5.56mm CQT®
& 40mm DragonFly™
Applications/Benefits
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SUMMARY– The new .50 cal SRTA lead free, frangible concept represents
an advance in small arms training technology
– The new .50 cal SRTA is currently an in-house R&D project
– It optimizes the use of range training resources due to its significantly reduced danger-template
– This new product will further enhance the family of: Short Range Training Solutions offered by GD-OTS Canada
.50cal SRTA Summary .50cal SRTA Summary
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John MacDougall: Business Development Manager
Telephone: 1-514-582-6226
E-mail: [email protected]
Contact InformationContact Information
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.50 cal SRTA Ballistic Testing.50 cal SRTA Ballistic Testing
Weapon cycling video