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Tomahawk Weapons Control System (TWCS)/Advanced

Tomahawk Weapons Control System (ATWCS)

Primary Purpose Provides a capability to control surface launches

of the TOMAHAWK Land Attack Missile (TLAM).

Encompasses communication support, engagement

planning, missile initialization, and launch

control functions.

Sub-Functions Provides the capability for the Battle Group

Commander to maintain common control system of

the TOMAHAWK weapon platform. The Commander can

arrange his TOMAHAWK platforms to fit the

organization, designating which ship will be an

active shooter or a non-participant. TWCS and

ATWCS also displays and tracks air, surface, and

subsurface contact reports from the weapon

platform's Force Over-the-Horizon Track

Coordinator (FOTC) node. The Battle Group's FOTC

will disseminate force-level track database

information and then, based on the threat, the

Launch Area Coordinator (LAC) will issue

engagement orders to those TOMAHAWK weapon

systems identified as participants or shooters.

Equipment Requirements TWCS:

AN/SWG-3B Tomahawk Weapon Control System,

MK-41 VLS Launcher,

AN/WSN-5 or AN/WSN-7 Inertial Navigation System,

Officer-in-Tactical-Command Information Exchange

System (OTCIXS),

Tactical Data Information Exchange System A

(TADIXS A),

Global Command and Control System - Maritime

(GCCS-M),

Electronic TOMAHAWK Employment Planning Package

(ETEPP).



ATWCS:

AN/SWG-4(V) Advanced Tomahawk Weapon Control

System,

MK-41 VLS Launcher,

AN/WSN-5 or AN/WSN-7 Inertial Navigation System,

Officer-in-Tactical-Command Information Exchange

System (OTCIXS),

Tactical Data Information Exchange System A

(TADIXS A),

Global Command and Control System - Maritime

(GCCS-M),

Generic Front-end Communications Processor

(GFCP).

Connectivity Requirements TLAMs must be aligned with the WSN-5 or WSN-7

Inertial Navigation System for all missions.

Officer-in-Tactical-Command Information Exchange

System (OTCIXS), Tactical Data Information

Exchange System A (TADIXS A) and Extremely High

Frequency (EHF) communications circuits are

required for transmitting/receiving off-board

engagement orders.

Crypto Requirements Manually entered current week and following week

crypto required for GPS missions.

Normal Locations CG 47 (TICONDEROGA) Class Cruisers (CG 52 and

higher hull number), DD 963 (SPRUANCE) Class

Destroyers, DDG 51 (ARLEIGH BURKE) Class Destroyers, SSN 637 (STURGEON) and 688 (LOS ANGELES) Class Attack Submarines.

Information Managed Maintains a theater ocean surveillance picture

which provides track avoidance information for

TOMAHAWK weapons employment. Also maintains

engagement planning information and world-wide

master mission library data.

Products Created Copies of engagement displays, and geographic

depiction of attack plan. OPNOTES & SITREPS.

INDIGO report to TOMAHAWK Strike Coordinator

(TSC). Consolidated launch report from Launch

Area Coordinator (LAC). Also provides mission

and missile inventory reports.

Lead Service/Contractor USN/Boeing and Raytheon (missile). NSWC DD, PHD

NSWC, NUWC KP, Litton, Telos and Lockheed Martin

(weapon control system).

Current Fielding Status Deployed and operational. Fleet installation of

the Advanced TWCS (ATWCS) started in FY 98 and

will continue thru FY 07. Software for surface

ship and submarine ATWCS is built around the

JMCISA Unified Build (UB) that executes on a UNIX

operating system and X-windows and MOTIF

utilities. The JMCIS UB provides processing for

communications, track management and correlation,

and mapping and charting. ATWCS provides

surface ships and submarines with new or improved

weapons control system capabilities, to include:

track processing common with the JMCIS-based

utilities; automated over water route planning

via track avoidance and land fly-around; ability

to put multiple primary and ready-spared missiles

on a single engagement; ability to send

preplanned missions (MDU Forward Pass) and

missile inventory Tomahawk Asset Management (TAM)

reports; improved automation of Strike

Coordination Overlays; expansion to 131

engagements (through TRIAL status), including a

maximum of 32 active engagements; automated

Mission Data Update (MDU) accountability; and an

embedded training (Scenario Generation and

Reconstruction) capability.

Known Problems TLAMs require precise position updates from the

WSN-5/WSN-7 gyro. If the shooting platform has a

bad gyro, then the TLAM shot opportunity is

degraded or lost. All TLAM platforms are

equipped with two gyros and TWCS/ATWCS can

interface with either one. High latency on

communications circuits can cause delays in the

coordination of a Theater-wide TOMAHAWK Strike

package which involves numerous shooters. With

the introduction of EHF communication circuits

into the fleet, this is becoming less of a

problem.

DIICOE Compliance Rating Not rated.

Point of Contact Mr. Bill Flinner, (301) 757-6199; office code PMA

282W9; Email: flinnerww@navair.navy.mil.

Updated by Capt Michael A. Brooks, USMC, CCSC-01
 

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