Montreal, April 20, 2004 – (NYSE: CGT; TSX: CAE) -CAE has recently secured five key U.S. nuclear power-plant simulator upgrade contracts worth more than C$3 million.

The orders are from AmerenUE, Florida Power & Light Company, Duke Energy and Exelon, which operate numerous generating plants in the U.S., as well as from Westinghouse Electric Company.

For AmerenUE, CAE will upgrade the Callaway Plant simulator’s steam generator models with CAE’s ROSE® and re-platform its simulation computer and instructor station with PCs that run CAE’s latest operating environment. Work is to be completed early in 2005.

Florida Power & Light Co. has ordered a similar re-platform of its simulation computer and instructor station on the St. Lucie nuclear power-plant simulator. The St. Lucie simulator, originally delivered by CAE in 1987, services two Combustion Engineering PWR generating units at the St. Lucie site on Hutchinson Island in Florida. Work is to be completed by the end of 2004.

At Duke Energy’s McGuire nuclear station, CAE will upgrade by year’s end the simulator’s electrical systems models, including its electrical grid, switchyard, AC electrical distribution system, main generator auxiliaries and emergency diesel generators.

For Exelon, owner of the largest nuclear power generation fleet in the nation, CAE will develop reactor core and thermal-hydraulic models for the Three Mile Island 1 simulator. TMI-1, located in Middletown, Pennsylvania, is a PWR unit that, at full power, produces sufficient electricity output to service about 200,000 homes. The project is slated to be completed in early 2005.

CAE will also assist Westinghouse Electric Co. with implementing its Ovation digital computer system on the San Onofre Simulator for Southern California Edison. The plant systems affected by the new DCS are the feedwater and turbine systems.

“In one way or the other, all of these customers have already worked with CAE previously,” said Rashid Khan, CAE’s executive vice president for marine and power systems. “It is gratifying that these customers continue to place their trust in us to service their simulator needs.”