This file comes from the Ralf Manteufel collection and is copyrighted. Note: This permission only extends to photos taken by Ralf Manteufel at this link and this link, in addition to files which may be provided via email. It does not include any other content from the above sites which has not been provided by Ralf Manteufel.
{{Information |Description={{en|1=Dornier Do 31 VTOL aircraft in 1968}}{{ru|1=СВВП Dornier Do 31 в 1968 году}} |Source=http://www.airliners.net/photo/Germany---Air/Dornier-Do-31E/1265509/L/ |Date=1968-04 |Author=Ralf Manteufel |Permission= |other