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ATK Medium Caliber Systems Lightweight 25 Mm / .50 Caliber Bushmaster Cannon

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ATK Medium Caliber Systems Lightweight 25 Mm / .50 Caliber Bushmaster Cannon An advanced weapon and space systems company ATK Medium Caliber Systems Lightweight 25 mm / .50 Caliber Bushmaster Cannon NDIA Gun and Missile Systems Conference April 21-24, 2008 New Orleans, LA Jim Lamb OSR No. 07-S-1411 Bradley with M242, 25mm LW25mm Bushmaster Medium Caliber Ammunition M230 Chain Gun 1 OSR No. 07-S-1411 Welcome An advanced weapon and space systems company • Introduction • .50 caliber Progress to Date • Similarity Between .50 cal and LW25 Ammunition • Design Goals • Commonality of Parts • LW25 Specifications • Size Comparison • Potential Applications • Current Status 2 OSR No. 07-S-1411 Introduction An advanced weapon and space systems company The .50 caliber/LW25mm Bushmaster Chain Gun is a derivative of the combat proven M242 25mm Bushmaster Automatic Cannon. It incorporates all of the battle proven features of the Bushmaster series of cannons, with significant system commonality for low-risk, proven performance. 30mm MK44 25mm M242 3 OSR No. 07-S-1411 .50 Cal Progress To Date An advanced weapon and space systems company - Characteristics - Weight: Receiver 35 lbs Feeder 14 lbs Barrel 27 lbs Total 75 lbs - Rate of Fire: 400-500 spm. - Anti-hangfire safety - Dual feed with forward or side eject - 28 VDC system - Hard Mount Recoil = 1500 lbs; ATK Developed Soft Mount Recoil < 600 lbs - 30,000+ rounds fired 4 OSR No. 07-S-1411 .50 Cal Progress To Date An advanced weapon and space systems company - Hardware Development - ATK Soft Mount developed and tested; recoil reduced to <600 lbs. .50 caliber ATK Soft Mount 2-sided muzzle brake developed and tested for aircraft applications. 5 OSR No. 07-S-1411 .50 Cal Progress To Date An advanced weapon and space systems company - Air Platform Integration and Testing - Successfully fired from Boeing Unmanned Light Attack Recon. Testbed (ULART): August 2006 Yuma Proving Grounds, AZ 6 OSR No. 07-S-1411 .50 Cal Progress To Date An advanced weapon and space systems company - Land Platform Integration and Testing - Successfully fired from Boeing Agile Multi-Role Weapon System (AMWS): September 2006 ATK Range Mesa, AZ 7 OSR No. 07-S-1411 Similarity Between .50 cal and LW25 mm Ammunition An advanced weapon and space systems company • The size of the .50 caliber receiver and chain was well- matched for the conversion to LW25 mm. Lightweight 25 mm .50 caliber SLAP* Round Depicted *SLAP = Saboted Light Armor Penetrator 8 OSR No. 07-S-1411 Lightweight 25mm Design Goals An advanced weapon and space systems company • Build on the similarity between .50 caliber and lightweight 25 mm ammunition. • Reduce errors by utilizing as many common parts and designs from the current Bushmaster family of cannons as possible. • Maintain the reliability characteristic of the Bushmaster line of cannons. LW25mm (predicted) 9 OSR No. 07-S-1411 Commonality of Parts An advanced weapon and space systems company LW25 mm Unique 38.0% .50 cal Common 55.4% Standard 25 mm M242 Muzzle Break Other BM Series 6.6% New Parts for Lightweight 25 mm Variant Common Parts to the Current .50 caliber All of the LW25 mm and .50 Caliber Components Are of Equivalent Design, Fabrication and Function as Other Currently Fielded Bushmaster Guns 10 OSR No. 07-S-1411 Lightweight 25 mm Bushmaster Specifications An advanced weapon and space systems company - Characteristics - Weight: Receiver 34.9 lbs Feeder 19.0 lbs Barrel 13.6 lbs Total 67.5 lbs - Rate of Fire: 230-260 spm. - Anti-hangfire safety - Dual feed with side eject - First Round Selectable - 28 VDC system - Capable for Firing Both ATK and General Dynamics (GD-OTS) Ammunition, Including Air Bursting Munitions. 11 OSR No. 07-S-1411 Relative Size of Each Variant An advanced weapon and space systems company Common Mounting Lugs and Features Mounting Lugs Bearing Surface 12 OSR No. 07-S-1411 Potential Applications An advanced weapon and space systems company • Close in Support for Manned Vehicles: – FCS – NLOS Vehicles – Troop Transports – Mounted Combat Systems (MCS) – Stryker – Kiowa Warrior – Avenger – SOCOM Aviation 13 OSR No. 07-S-1411 Potential Applications An advanced weapon and space systems company • Main Protection for Remote Vehicles – Remote Weapon Station Integration – ARH – FCS Mule – ARV RSTA – Base Security • Any Application Currently Mounting .50 cal 14 OSR No. 07-S-1411 Current Program Status and Future Plans An advanced weapon and space systems company • In Testing (Video of gun firing) • Future Plans – Develop Remote Feed Select Operation – Develop Dual Purpose (LW25/.50 cal) Common Feed Chutes and Magazines – Develop .50 caliber “Quick Change” Hardware 15 OSR No. 07-S-1411 Contact Information An advanced weapon and space systems company Program Manager Mailing Address Robert Glantz Alliant Techsystems Inc. (480) 324-8611 Medium Caliber Systems [email protected] 3309 North Reseda Circle Mesa, AZ 85215 Engineering James Lamb (480)324-8658 [email protected] Business Development Darrel Morris (480)324-8703 [email protected] 16 OSR No. 07-S-1411.
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