A history of the m72 law and current improvement programs
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A History of the M72 LAW and Current Improvement Programs. Nicholas Duke 39 th Annual Gun & Ammunition/Missiles and Rockets Conference April 13-16, 2004. Thoughts on M72. Why is M72 so widely deployed? How has M72 maintained relevance for 40 years?

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A History of the M72 LAW and Current Improvement Programs

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A history of the m72 law and current improvement programs

A History of the M72 LAWand Current Improvement Programs

Nicholas Duke

39th Annual Gun & Ammunition/Missiles and Rockets Conference

April 13-16, 2004


Thoughts on m72

Thoughts on M72

  • Why is M72 so widely deployed?

  • How has M72 maintained relevance for 40 years?

  • Who can learn from the M72 technology strategy?

  • What is the future vision for M72?

1


What is the law

What is the LAW?

  • Firepower for the individual warfighter

    • Light close-combat lethality for mobile Soldiers

    • Disposable rugged round of ammunition

    • Minimal training needed to effectively employ

    • Highly proliferable and low cost

  • This concept has adapted to world changes

    • New threats have been addressed

    • Modern tactics have been embraced

    • Emerging technologies have been exploited

    • Light weight, compact size have been maintained

2


What is the law1

What is the LAW?

Improved M72A4, A5, A6/A7

(Current Production)

Next Generation M72E10-AP

(Under Development in US)

Next Generation M72E9-DP

3

(Under Development in Norway)


Who has fielded the law

Who has fielded the LAW?

US Army

Norway

SOF

USMC

More than 20 other allied nations

4

Fielded in Afghanistan and Iraq


Why such wide deployment

Why such wide deployment?

  • M72 is not specialized for a single mission

    • Useful in a wide variety of combat scenarios

      • Enough armor penetration to defeat most threat AFVs

      • Enough explosive to be effective versus material targets

      • Enough range to provide effective standoff

    • Mobile enough to carry for contingencies

      • Carry weight and length don’t preclude other equipment

      • Multiple rounds can be carried by a single gunner

      • Ease of use allows for quick reaction

  • M72 program is multi-national

    • Partnership between US and Norway

    • Talley, NAMMO, & NI cooperate to consider many potential user viewpoints

5


Mobility is critical

Mobility is Critical

  • Carry weight is the major determinant

    • Soldiers are overloaded

    • Specialized equipment exists for every task

    • A multi-function contingency weapon must be light

6


How has it stayed relevant

How has it stayed relevant?

  • M72 has a responsive technology strategy

    • Internal user demands (concerns, tactics changes)

      • Generate M72 specific technology development

    • External technology maturation (advancements)

      • Generates opportunities for M72 specific improvements

    • Internal acquisition reforms (requirements)

      • Require integration of non M72 specific technologies

    • Changes in external combat environment (threats)

      • Suggest integration of unforeseen capabilities and adaptation to new missions

7


Technology determinants

Technology Determinants

Internal Environment

Suggest

Internal Environment

Generative Mechanics

Integrative Mechanics

M72 Weapon System

External Environment

Survivability Concerns

Modern Tactics

Insensitive Munitions

Night Vision Devices

Fuze Safety

Advanced Warheads

Composite Materials

Emerging Threats

Asymmetric Warfare

8


Evolutionary overview

Evolutionary Overview

M72

M72A1

Reliability Upgrades

The Original LAW: Light, rugged, cost-effective

M72A2

Reliability Upgrades

M72A3

Safety Upgrades

US/Norwegian Consortium

M72A4

350mm RHA

The Improved LAW: Longer range and easier to operate

M72A5

300mm RHA

M72A6

150mm RHA

M72A7

150mm RHA IM

M72E8

US funded program

150mm RHA IM

The Next-Generation LAW: More lethal and survivable

M72E9

Norway funded program

450mm RHA IM

M72E10

US unfunded requirement

Anti-Personnel IM

9


Technology evolutions

Technology Evolutions

  • M72 to M72A1 & A2

    • Reliability upgrades developed to address User needs, improve manufacturing processes

  • M72A2 to M72A3

    • Safety upgrades integrated to respond to acquisition changes, production shift to Norway

  • M72A3 to M72A4, A5, A6

    • Gunner interfaces, lethality, and range upgraded for changing User needs

    • A6 warhead integrated for new SOF mission

  • M72A6 to A7

    • IM sensitivity upgrades integrated to address regulatory changes and increase safety

10


Who can learn from m72

Who can learn from M72?

  • Many DoD programs can learn something

    • Modern pace of technology and threat changes, coupled with tight budgets, demand it

  • Lessons learned are:

    • Evolutionary path ensures program longevity

      • Flexibility critical to meet needs, even change missions

    • Map and track the programs technology drivers

      • Identify emerging needs & develop matching technology

      • Anticipate emerging threats and integrate counters

    • International partnerships foster improvement

      • Alternative viewpoints considered

      • Larger User base ensures unbroken series of steps

11


Future vision for the m72

Future Vision For the M72

  • Fire From Enclosure (FFE) propulsion (M72E8)

    • Technology generated so M72 can rule MOUT combat

  • Deep Penetrator (DP) warhead (M72E9)

    • Technology integrated to improve M72 vs threat armor

  • Anti-Personnel (AP) warhead (M72E10)

    • Technology generated to evolve M72 to a new mission

  • On-axis trigger firing mechanism (All)

    • Technology generated in response to User request

  • Dual-safe fuze (All)

    • Technology integrated to improve safety for soldiers and in storage and transportation

12


M72e8 ffe

M72E8-FFE

Interior wall after 3 firings at 5 meters and 1 firing at 3 meters

  • Adds Fire From Enclosure (FFE) propulsion

    • Low noise, low signature, greater range

    • Maintains A7 multipurpose target lethality

    • Improves launcher human factors

    • Incorporates dual-safe fuze

    • Mitigates IM sensitivities

13


M72e8 ffe firing

M72E8-FFE Firing


M72e9 dp

M72E9-DP

  • Adds Deep Penetrator (DP) warhead

    • >450mm RHA with enhanced behind armor effects

    • Incorporates dual-safe fuze

    • Improves launcher human factors

On-Axis Trigger

Fold Forward Sights

Out-of-line Primer

NVD/Reflex Integral Sight Rails

14


M72e10 ap

M72E10-AP

  • Adds Anti-Personnel (AP) warhead

    • Blast/fragmentation warhead

    • Incorporates dual-mode target discriminating fuze

    • Improves launcher human factors

    • Maintains weight < 9.5 lb with rocket motor

  • Anti-Personnel warhead

    • Detonates on contact with armor and concrete

      • Large breachs and significant spall

    • Penetrates brick, block, and earth & timber

      • Devastating lethality behind cover

15


M72e10 vs brick structure

M72E10 vs Brick Structure

16


Summary

Summary

  • Benefits of an effective technology strategy

    • Increased versatility to the warfighter

    • Reduced cost and schedule for PIPs

    • Increased program longevity

    • Builds on existing training infrastructure

  • M72 LAW program provides example

    • System adapts to new threats and requirements

    • Improvements underway for all subsystems

    • Modular design and multiple Users keep cost low

    • Fielding times < 3 years

    • 40+ year program life to date

17


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