im still looking for my plane, but i did find out the 89th liberated a 262 factory, reimahg, on 4/12/45.
it is about 35 miles east of Friedrichroda.
this factory was in the site of an old mine & dub into a larg hill, on top of which was a 3000' strip, too short for 262s, so after they were built & the elevator brought them up to, they did a RAT/O.
iirc cobra commander had an HQ like this once...