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St. Marks Powder

St. Marks Powder. HYBRID Propellant for Small, Medium and Large Caliber Applications. Agenda. Plant Overview HYBRID Propellant Technology Small Caliber Applications Medium Caliber Applications Large Caliber Applications Summary. St. Marks Powder Producing Propellant Since 1970.

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St. Marks Powder

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  1. St. Marks Powder HYBRID Propellant for Small, Medium and Large Caliber Applications

  2. Agenda • Plant Overview • HYBRID Propellant Technology • Small Caliber Applications • Medium Caliber Applications • Large Caliber Applications • Summary

  3. St. Marks PowderProducing Propellant Since 1970 • 1974 acres, 137 buildings, 6.5 miles of roads • Propellant production > 150 products Product mix 50% Military & 50% Commercial Largest producer of military and commercial small arms propellant in the U.S.

  4. HYBRID Gun PropellantNew From St. Marks Powder PERFORATED • DETERRED Ultimate ballistic efficiencyachieved by combining perforated geometry with burn rate modifiers (deterrents) Illustration of a propellant grain cross section Deterrent Layer - applied to tailor the burn rate for specific applications to optimize ballistic efficiency HIGH PERFORMANCE - Optimum burn progressivity - High loading densities COOL BURNING - Low erosion & low flash ECONOMICAL - Modified conventional process and ingredients

  5. Single Perf for reduced barrel wear (cooler burning) HYBRID Propellant is Manufactured in Single, Seven, and Nineteen Perf Geometries for Application Flexibility • Seven Perf for higher energy performance (less deterrent) • Nineteen Perf for greatest bed permeability

  6. Manufacturing Process HYBRID PROPELLANTS ARE PROCESSED UNDERWATER IN A SAFE, ECONOMICAL AND ENVIRONMENTALLY FRIENDLY MANNER-THEY UTILIZE CONVENTIONAL PROPELLANT INGREDIENTS: NITROCELLULOSE AND NITROGLYCERINE ECONOMICAL SAFE ENVIRONMENTALLY FRIENDLY

  7. HYBRID Propellant for Small Caliber Applications • Due to its progressive geometry and chemistry, HYBRID propellants are ideal for small caliber rifle applications • Demonstrated 10% charge weight reduction in centerfire rifle applications with excellent temperature sensitivity • Great for long range sniper applications

  8. HYBRID Propellant for Medium Caliber Applications

  9. St. Marks Powder HYBRID PropellantSuper 40MM Air Burst Test Summary:Target Velocity = 1050 mps at P+3SD< 480 MPa Temp Velocity Pressure Action Time+70º F 1049 mps 399 MPa 4.13 ms 2 2+145º F 1046 mps 402 MPa 4.08 ms 3 6 - 40º F 1037 mps 390 MPa 4.30 ms 7 17 Achieved the same velocity as the 30mm GAU-8/A (same envelope) with a 675g 40m projectile compared to the standard 367g 30mm projectile

  10. 40mm AB Pressure-Time Trace

  11. Increased Muzzle Energy through Compaction • HYBRID propellants are plastic in nature and compressible. Through the utilization of High Density Propelling Charge Technology (HDPC) the charge weight was increased by 30% over loose loaded propellant. • Benefits of compacted propellant versus optimal loose HYBRID propellant • 22% increase in muzzle energy • Lower Flame Temperature (50°K) • Improved Temperature Performance

  12. HYBRID Propellants for Large Caliber Applications • HYBRID Propellants can be produced with flame temperatures ranging from 2,000°K (Impetus = 800 j/g) to 3,500°K (Impetus = 1150 j/g) for a variety of applications • Multi-Perf, high energy formulations are ideal for advanced KE, direct fire ammunition • Low Flame Temperature HYBRID propellants provide exceptional ballistic performance and extended barrel life for high cyclic rate Army and Navy indirect fire applications

  13. Large Caliber Test Results 105mm M900 HYBRID Demonstration April ’02 @YPG DemonstratedVelocity Increase 7 Perf HYBRID + 60.0 Meters/Second 3 Round Std. Dev. = 1.6 M/S Baseline Propellant 3 Round Std. Dev. = 9.9 M/S

  14. HYBRID Propellant for FCS Applications HYBRID Propellant The New Technology Provides: • The highest possible muzzle velocity for Maximum Range • A Lower Flame Temperature for Extended Barrel Life and No Muzzle Flash in most applications • Environmentally friendly domestically produced raw materials • Low Cost Conventional Ingredients • Applicable to the full spectrum of envisioned Precision Guided Munitions (PGMs) and related propulsion systems.

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