unclassified this document contains proprietary information of israel aerospace industries ltd. and...

UnclassifiedThis document contains proprietary information of Israel Aerospace Industries Ltd. and may not be reproduced, copied, disclosed or utilized in any way in whole or in part, without the prior written consent of Israel Aerospace Industries Ltd

1-REF

May 2010

J2KJoin to Kill

A different way to intercept ICBMs

May 2010UnclassifiedThis document contains proprietary information of Israel Aerospace Industries Ltd. and may not be reproduced, copied, disclosed or utilized in any way in whole or in part, without the prior written consent of Israel Aerospace Industries Ltd

THE THREAT

MIRV + Decoys + MIRV + Decoys + ManeuversManeuvers


Decoys

Why decoys are a major problem

for BMD ?


Smart Decoys – RF+IR+Visible

Very difficult to discriminate and hit the right target (WH).

WHY is it so problematic?

??

?

?

?

??

?

??


Oooops…

Very little time for discrimination, decisions, calculations, divert, hit

WHY do we have such a short time?


Physics

Assured discrimination range ~1 Km

(Future sophisticated decoys)

Relative velocity (ICBM) ~12 Km/sec

Time from discrimination to hit – 80 mSec

WHY is the relative velocity so high?


Mathematics

Target velocity = 6 Km/sec+

Interceptor velocity = 6 Km/sec

Relative Velocity = 12 Km/Sec

WHY do we add velocities?


Because…

Interceptor flies head-on to the target

WHY does it?


Because…

That’s what everybody does!

That’s the way we always did it!

What’s the price of staying inside the box?


The price

Should we stay inside the box?Should we stay inside the box?

Very complex interceptorsVery complex interceptors

Huge NRE costsHuge NRE costs

High RE costsHigh RE costs

Limited confidenceLimited confidence

Entering the counter-counter game with deficiency and a Entering the counter-counter game with deficiency and a

time-lag of a decadetime-lag of a decade

Limited answer for random-maneuvering RV’s (in space)Limited answer for random-maneuvering RV’s (in space)

Any solution is sensitive to the enemy next-stepAny solution is sensitive to the enemy next-step


The J2K concept

Target velocity = 6 Km/sec

Interceptor velocity = 6 Km/sec

Relative Velocity = 12 Km/Sec

Time Budget = 80 mSec

• Discrimination without time limits• Missile is simplified• Kill probability is much higher

+-

1,000,000 mSec

Breaking out of the box!

0


J2K - THE PRINCIPLE

Joining the enemy warhead/s and decoys

in a Formation Flight

Discriminating and Destroying

the Targets at

ZERO RELATIVE SPEED


J2K – THE PRINCIPLE


J2K – Think again…

When your target is behind a concrete wall - When your target is behind a concrete wall -

You can break the wallYou can break the wall

Or you can outflank itOr you can outflank it

Changing the rules of the gameChanging the rules of the game

Plenty of time for all tasksPlenty of time for all tasks

Re-use of the system assets for Re-use of the system assets for

multiple targets/decoysmultiple targets/decoys


J2K - THE RENDEZVOUS

Detection & Recognition

Defense Plan

Launch J2K Interceptor towards CONUS.

Separate KVs from booster

Maneuvering to adjust position + velocity +

time

“Formation flight”


J2K - THE DISCRIMINATION

During the formation flight

Minutes instead of milliseconds.

Examining the target/s and the decoys by

the chosen sensor/s

(electro-optical / LADAR / mmW radar)


J2K - THE DISCRIMINATION

Small decoys - discrimination by shape

Triple Decoys (IR, RADAR, Visible) -

discrimination by dynamic behavior (tumbling)

Quad Decoys (IR, RADAR, Visible, Dynamics) -

If not discriminated – destroyed as targets


J2K – KILLING MECHANISM

I - Single-warhead scenarios -

Closing the range to zero

(touching the target) and exploding

II - MRV/MIRV scenarios –

Shooting high-speed bullets at

the targets (this model discussed below)


J2K – KILLING MECHANISM II – CONT.

The bullets are shot from a close range, in ideal

conditions (no drag, no wind, no relative gravity fall)

““Right between the eyes”Right between the eyes”““Right between the eyes”Right between the eyes”

The bullet will severely damage the thermal shield of the target, which will cause its destruction while penetrating the atmosphere.

This option overcomes even the most sophisticated quad decoys (piercing the balloon)


J2K KV – Optional design

DV nozzle

Lateral nozzle

LADAR

Gun

Uncooled IR FPA + Lens

50 Bullets Magazine

3 Reaction Wheels


J2K KV – Optional Design

First cut analysis results in the following major parameters for

the Optional design:~23cm diameter sphere

~28Kg

~13.5 Kg fuel

1 dV nozzle + 4 lateral nozzles

3 Reaction Wheels (satellites genre) for smooth and accurate

rotation in all axes

Uncooled FPA IR sensor

LADAR/mmW Radar/Laser Range-Finder

A “gun” with 50 high-speed bullets

Miniaturized avionics with MEMS Inertial System

Battery


GROUND BASING

The J2K batteries can be deployed at US or friendly

territories, from which they can cover possible ballistic

trajectory attacking homeland USA (except some SLBM

trajectories).

Possible land based locations for different ranges are:

Alaska + Aleutian

Hawaii + Other pacific islands

Great Britain (Shetland islands)

Bermuda + Other Atlantic islands


SEA BASING

Ships patrolling in the preferred areas, far from home, to protect

from ICBMs.

A single dedicated ship can launch many interceptors.

Fixed bases, such as oil rig type

Medium-Range missiles launched from enemy submarines, can be

intercepted by J2Ks launched from ships or the offshore oil rigs


J2K – ORBITS

Shetland Is. UK


J2K – ORBITS

`


J2K – ORBITS


J2K – ORBITS

North North KoreaKorea


J2K – ORBITS

St. LawrenceSt. Lawrence

St. MatthewSt. Matthew

Aleutian IslandsAleutian Islands


Description of a test-case

Aggressor

Launching point: ICBM base at pervomayak - 48.05°N 31.18° E

Range: 8,068 Km

Apogee: 1,291 Km

Time of Flight: 1744 Sec

Launch Az: 303°

Target

Washington DC

J2K Interceptor

Launching point: United Kingdom – 56.40N 5.02W

Take off weight: 2571 Kg (Arrow booster)


Interception solution

Aggressor take off: t = 0 Sec

Interceptor take off: t = 493 Sec

Interceptor TOF = 747 Sec

Phases:

Phase I - ballistic flight

Phase II - Divert

Phase III - Entering Formation flight

Phase IV – Destroying RVs




Phase I - ballistic flight -

end time = 669 Sec

end mass = 50 Kg

Vx(int) = 3,850 m/s

Vx(tar) = 4,500 m/s

Vy(int) = Vy(tar) = -113 m/s

Vz(int) = -1530 m/s

Vz (tar) = -2900 m/s





Phase II – Divert

Ignite kick-motor

11 Sec of boost

End time = 680 Sec

End Mass = 24 Kg

Closing velocity = 350 m/Sec



Interception solution Phase III - Entering Formation flight

Closing range and relative velocity to zero

End time = 747 Sec

End Mass = 12 Kg

Phase IV – Destroying RVs

Time to go before entering atmosphere – 400 Sec


Simulation of a test-case


J2K – Coverage

A single KV can “clean” a

sphere or a cylinder around the center

of gravity of an incoming “cloud”

(cluster) of targets and decoys, in the

order of magnitude of 10 Km radius, by

maneuvering in all 6 directions within

the cloud.

A single interceptor carrying 6 KVs,

can protect a large area such as a

large city.MIRV


J2K - Coverage

Area covered by a single J2K KV

Area covered by a single J2K Interceptor

Carrying 6 KVs

Center of city is covered by

2-4 overlapping

KVs

Important Remark:

This coverage of J2K is based on the worst-case assumption, that the engagement is accomplished just before entering the atmosphere. If the Interception occurs in earlier stages, the 10 Km radius of the single J2K KV coverage can be expanded to a much larger area


J2K - Coverage

Minuteman III Base

3 KVs J2K Defense (part of a single

interceptor)


J2K - Coverage

Minuteman III Base6 KVs J2K Defense

(a single interceptor)

Most area is overlapped by 2-4 KVs


J2K - Summary

Overcomes both target maneuvers and decoys (of all

types)

One Interceptor can overcome many MIRVs and decoys

Expected lower NRE and RE prices

Lower technical risk - No need for technology break-

through

Can use any booster (e.g. GMD, KEI, SM, Arrow)

Can be stationed on land or sea

Less sensitive to the enemy next-step


STATUS

MLM completed Preliminary Feasibility study, with

excellent results.

MLM presented the concept to MDA System

Engineering in DC on Oct. 28 2005 (under G-G).

Per MDA request, MLM submitted a proposal for

Feasibility Study and DEM-VAL.

Still waiting…

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