The Advanced Reentry Demonstrator (ARD) was a suborbital reentry test flown on the third Ariane 5 flight. The ARD was launched on October 21, 1998, and was released shortly after separation of the launcher's cryogenic main stage (at an altitude of about 216 km) 12 minutes after lift-off from the Guiana Space Centre, Europe's spaceport in Kourou, French Guiana.
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