1. Surf Zone/Beach Zone (SZ/BZ) Obstacle Reduction Capt R.W. Paterson

2. The Threat

3. Background Currently no program of record to deal with SZ/BZ obstacles PGMs thought to hold some promise for a near term solution (tied to USAF support) Began working this problem in Germany Invited to be part of the IPT for JDAM Assault Breaching System (JABS) Incorporating results from live fire tests

4. The Skeptics “This is a physics problem” “Agent based tools won’t work” “It’s just too hard”

5. Physics Mathematical representation of the behavior of the natural world –Newton’s Laws of Motion –Einstein’s Theory of Relativity We have physical results from live fire tests

6. Arena #1 Surf Zone Tests Mk 82 Pond Test – Half Buried (March 2002) Arena #2 Bomb Buried to ½LWater Depth of 3 Feet

7. Note - M5 and M4 moved towards the bomb Plume Surf Zone Tests Mk 84 Pond Test – April 2002

8. Mine Vulnerability to Explosive Neutralization VS 1.6 Anti-Tank Mine

9. MK 80 Series Bombs Predicted Lethal Radius (Feet) for Mines** * Killed out to 21 feet in summer 2000 tests ** Testing on-going Mine Type Bomb A Bomb B Bomb C 6’3’6’3’6’ A 20*14241631 B10 9141019 F 17*12211428 G1712211428 H1712211428 Depth

10. The Physics Behind the Problem 6 ft. ~ 5O’ MVMT 30’ KILLED More Mines Moved More Mines Killed KILL 2-3 M ~

11. Agent Based Distillations Digital Mathematics used to simulate the simplified behavior of our human and natural world Question: Can agents that represent physical objects (mines) and not people be given behaviors that simulate physics

12. Pythagoras Scenario Using Sample Data Deep WaterShallowVery ShallowShore Obstacle Belts Aim Points for 2000 lb JDAM EFVs

13. Questions Can well placed Mk 80 series bombs effectively create assault lanes? How precisely must landing craft navigate given varying assault lane widths? How does the knowledge of obstacle location affect clearance? How many sorties need to be flown, how many weapons need to be dropped?

14. New Questions from the Week What tactics need to be employed against varying threats? –Channeling –Belt strikes –Point strikes JDAM versus standard Mk-80 How do we create the output we need?

16. What is Happening

18. Biggest Surprise Cost of Jack and Coke at Rocky Point $12 Dinner for 9 at Rocky Point $453 Unexpected discovery that LESS precision is better Priceless