From 1988 to 1990, he completed basic training at the German Aerospace Center, and was then nominated to be in the prime crew for the second German Spacelab mission.
從1988年到1990年，他完成了在德國的德國航空太空中心的基本訓練，然後被提名為在第二個德國太空實驗室任務的主要機組人員。