Home movie taken at Leipheim in Bavaria in early 1941 by Willy Messerschmitt who was overseeing the prototype Me 321 assault glider development (Messerschmitt is seen in multiple shots in the footage).
The shots of the Ju52 being towed into the air by the "troike-schlepp" triple-tow Bf110s highlights the initial dangers of this towing arrangement. Later footage in black and white shows further test film of this aircrafts development including the Gnome Rhone powered 4 and 6 engined Me323 variants. Also seen is redoubtable test pilot Hanna Reitsch talking to Messerschmitt towards the end of the film.
Hope it is of interest
The film begins at 00:16:28 and the thumbnail can be expanded to full screen.
http://www.archiv-akh.de/filme?utf-8...rschmitt+321#5