looking for info on otto kalmbach, me 262 pilot!
 

any information on a german pilot, of me 262's, name was/is otto kalmbach? he was a glider pilot in the mid 30's, then stuka pilot, then heikel 110's and 111's, then was a flight instructor, then became a me-262 pilot. he was in geschwader hindenburg in the early part of the war.
thanks!!