(05/17/2002) -- STS-111 Mission Specialist Philippe Perrin gets ready in his launch and entry suit for a simulated launch countdown at the pad. Perrin is with the French Space Agency. The simulation is part of STS-111 Terminal Countdown Demonstration Test activities for the STS-111 crew and Expedition 5. The payload on the mission to the International Space Station includes the Mobile Base System, an Orbital Replacement Unit and Multi-Purpose Logistics Module Leonardo. The Expedition 5 crew is traveling on Endeavour to replace the Expedition 4 crew on the Station. Launch of Endeavour is scheduled for May 30, 2002.