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FAS Project on Intelligence Reform

USMC Mobile Electronic Warfare Support System (MEWSS)

The MEWSS is U.S. Marine Corps' ground component of the Intelligence and Electronic Warfare Common Sensor (IEWCS) system. It uses the same subsystems as the Army's Ground Based Common Sensor-Light and Heavy (GBCS-L &GBCS-H), and the Advanced Quickfix (AQF). The MEWSS uses the Light Armored Vehicle (LAV) as its platform. The MEWSS is capable of intercept and location. It is also capable of conducting surgical electronic attack against designated targets. The MEWSS is operated in the USMC MAGTF area typically at or beyond the FLOT.

The most notable example of IEWCS technology transfer is to the U.S. Marine Corps (USMC) in an electronics suite upgrade to the Mobile Electronic Warfare Support System (MEWSS), known as the MEWSS Product Improvement Program (MEWSS-PIP). This upgrade utilizes all three IEWCS subsystems configured in a standard Light Armored Vehicle, to become in essence a fourth IEWCS platform configuration. The direct use of open system architecture [OSA]-based IEWCS technology in the MEWSS-PIP acquisition has provided the USMC a cost avoidance of approximately $149 million to $481 million, depending on the specific cost avoidance baseline assumptions used.

LAV Mobile Electronic Warfare Support System (MEWSS)
Mission:

  • Two-way communications
  • Data collection
  • Locating and positioning of enemy forces
  • Jamming and intercepting enemy communications
  • Mobility equal to supported units

POWER TRAIN & SUSPENSION

  • Engine 290 hp Detroit Silver Series
  • Transmission Allison MT653 (5 speeds forward - 1 reverse)
  • Transfer case (1)
  • Differentials (4) automotive, (1) water drive
  • Suspension (8) wheel independent.
  • Full time 4 wheel (rear)
  • Selective 8 wheel drive
  • Power steering
  • Power brakes
  • Selective water drive

Water drive:

  • (2) propellers
  • (4) rudders

EQUIPMENT:

  • TELDEX System (uses a loaded map, GPS, Gyro and movable cross hair)
  • Vehicle and Shore power Capabilities (24VDC and 110/VAC)

Electronic Jamming System (AN/ULQ19):

  • log periodic antenna and whip antennae
  • 37 ft. telescopic mast - 360° rotatable
  • mast control system w/BITE

Directional Finder (DF) System:

  • "Mantis" DF System

Two Acquisition Receivers (WJ-8618B):

  • omnidirectional antenna

Communication Radio System:


  • intercom system (multiplex)
  • radios (SIN GARS, Harris "Falcon" GRC-231)

Two Air Conditioning Systems:

  • engine driven compressor; 28,000 BTU/hr. system
  • electrically-powered 3,000 BTU/hr. (radio rack unit)

PERSONNEL (4/5)

  • Driver
  • Commander/Supervisor
  • Electronic Support Measure Operator
  • Electronic Countermeasure Operator

AIR TRANSPORTABILITY:

  • (1) C-130
  • (2) C-141
  • (5) C-5A
  • (1) CH-53E (helicopter lift)

TOWABILITY:

  • Only towed by Recovery or Logistics Vehicles

FIRE SUPPRESSION:

  • Halon 1301 (manual system in crew & engine compartments)

NBC SYSTEM:

  • M243 gas mask
  • M43A1 detector/alarm system

SELF-RECOVERY WINCH:

  • Hydraulic (front-mounted 15,000 lbs. dynamic pull)

ATGM WIRE CUTTER:

  • (1) at driver

PAINT:

  • Interior Sea foam green
  • CARC-exterior camouflage pattern

ELECTRICAL SYSTEM

24 volts negative ground

  • Waterproof
  • Radio suppressed system
  • Wiring, connectors, breakers, harnesses IAW MIL-STD's
  • MIL-STD 220amp alternator
  • (4) batteries per MS 35000 (500 amp slave receptacle)

FEATURES:

SIZE/WEIGHT

  • Length 259 in.
  • Width 98.4 in.
  • Height 104.5 in.
  • Curb weight 26,300 lb.
  • Gross weight (max.) 28,200

PERFORMANCE @ GVW

  • Maximum speed 62 mph
  • Swim speed 6 mph
  • Maximum range 410 miles
  • Minimum turn diameter 51 ft.
  • Maximum trench crossing 81 in.
  • Maximum grade 60%
  • Maximum side slope 30%

DOORS/HATCHES:

  • (2) rear overlapping
  • (2) rear roof
  • (1) driver
  • (1) vehicle commander
  • (1) winch

ARMAMENT:

Self defense:

  • Pintle mount for M240E machine gun

Ancillary:

  • (2) M257 smoke grenade launchers

Ammunition:

Ready:
  • (8) L8A1 smoke grenades
  • 200 rounds 7.62mm
Stowed:
  • (8) l8A1 smoke grenades
  • 800 rounds 7.62mm

VISION:

Driver:

  • (3) M-17 periscopes
  • (1) night vision AN/VVS-2(v)4

Vehicle Commander:

  • (5) M-17 periscopes
  • (1) night vision AN/VVS-2 (V) 4

Crew Compartment:

  • (3) vision block MIL-B-11352

Sources and Methods



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http://www.fas.org/irp/program/collect/mewss.htm
Created by John Pike
Maintained by Steven Aftergood

Updated Saturday, February 05, 2000 10:51:52 AM