There are (at least) 2 bands called Spacecraft. 1) Formed in mid-seventies, Spacecraft was a french space-electronic band.
They released their album ‘Paradoxe’ in 1975
This guitar/synth duo hails from France, but they're pretty well in cahoots with your krautrock superstars. There's plenty of early Tangerine Dream synthetic iciness and Manuel Gottsching-style guitar insanity lurking in these tracks. They also seem enamoured with the drum machines of the era, which is pretty fun in a retro future way.