AITECH RECEIVES CONTRACT FOR
US ARMY’S MOBILE GUN SYSTEM PROGRAM

Chatsworth, CA, June 2005 – Aitech Defense Systems, Inc., a world leader in the
development and manufacture of board and subsystem level products for harsh
environment defense, aerospace and space applications, announced that it has been
awarded the contract for the US Army’s Mobile Gun System (MGS), part of the
interim armored vehicle (IAV) program to be utilized by the Army’s new light combat
brigades. The new contract from General Dynamics Canada (GDC), Ottawa,
Canada, covers the delivery of initial preproduction units of the Mobile Gun Computer
subsystem for use in the advanced MGS. The contract, totaling over $1 million, is
the result of a previous development program where the Aitech subsystem design
was qualified.

In November 2000, a six-year, $4 billion contract was awarded to General Dynamics
Land Systems to equip the US Army’s brigade combat teams with over 2,000 armored
wheeled vehicles through a series of orders starting in 2001. The new armored
vehicle, known as Stryker, is the centerpiece of the US Army’s efforts to transform
itself into a more agile, deployable force. The Stryker MGS variant consists of a
105 mm cannon mounted in a low-profile turret integrated into the LAV-III chassis.

Aitech’s initial contract is for the delivery of an electronic controller subsystem
enclosure comprised of a combination of existing Aitech COTS and custom chassis,
backplane, power supply, and enclosure products. The subsystem from Aitech,
further populated by GDC, will provide the firing control of the 105 mm cannon to
achieve the sustained high fire rates needed in tomorrow's battlefield.
The MGS computer is housed in a customized 1/2 ATR short chassis that contains
an input power line filter, a precision reference power supply unit, an I/O harness and
backplane to interface with the added single board computer and intelligent I/O
modules, as well as additional standard, 6U CompactPCI I/O boards.
The vehicles are to form the basis of six Brigade Combat Teams by 2008, and the
SECDEF-approved contract requirement covers the supply of 2,131 vehicles in many
different variants. The current upgrade program outlines plans to equip more than
200 Stryker Mobile Gun Systems with the advanced subsystem over a two-three year
period.