23 February 2004

This actuator is a lightweight electromechanical unit that is based on Smiths proven design and technology, which provides a quality cost effective component with mature field reliability at the first delivery. These electromechanical actuators will provide positive control functions relative to the roll and yaw trimming of the Mustang. The result of using existing, qualified, flight proven hardware and making minor design modifications, is a technical program that offers low risk.

Smiths Aerospace is the leading transatlantic aerospace equipment company, with more than 9,000 staff and $1.6 billion revenues in North America and Europe. Smiths Aerospace holds key positions in the supply chains of all major military and civil aircraft and engine manufacturers and is a world-leader in electronic and mechanical systems, precision components and Systems Customer Services.

Notes to editors

About the actuator:

The electromechanical actuator enhances the Mustang 510 with a dual load path and a 150-pound normal load, and a 575-pound limit load with a .75-inch stroke. The actuator weighs less than 2.5 lbs. and consist of a brush type rare earth permanent magnet motor, a conventional spur geartrain, two bull gear / jackscrew combinations coupled together by a single spur gear, two drive nut/moveable output rams, and a feedback Rotary Variable Differential Transformer (RVDT). The RVDT provides trim surface position information. The actuator is travel limited through the use of a pair of limit switches. The design includes non-jamming mechanical stops that limit the over-travel of the actuator rams. Smiths supplies a similar actuator on the Sino Swearingen SJ-30-2, and single ram designs on the CN-235, ERJ-145 & 170, F/A-18, F-14, Learjet 45 & 60, P-3, SK-60, and S-3s for various position control functions.

Smiths Aerospace has been supplying electromechanical actuators, air valves, and electronic temperature control and positioning systems to the aircraft industry for more than 67 years. The company's linear electromechanical actuators are used in numerous aircraft, marine and vehicular applications.