I will just leave this here. Hey, would this make it a parallel twin.
T
Superior German Engineering?
Moderator: Moderators
Yup, that engine is what they call a "split-single". They really hadn't a clue back then and this design was an attempt to separate the intake flow from the exhaust flow. It worked after a fashion but was not very efficient. A couple of videos:
https://www.youtube.com/watch?v=18KLEnO9tTE
https://www.youtube.com/watch?v=ZqQw_9Be0zA
(animation of how it worked at about the 1:30 mark)
https://www.youtube.com/watch?v=18KLEnO9tTE
https://www.youtube.com/watch?v=ZqQw_9Be0zA
(animation of how it worked at about the 1:30 mark)