RE: Unknown make
No problem.
I forgot that David was going to Germany. I saw the video. Nice job.
From what I understand, your club has many conversion motor gurus. You shoulf find the needed motor info there.
By the way, balance your PC 300 at the thickest part of the wing, where the spar would be, if it had one.
At this point, I plan to go to the Big Rapids Flyin. Maybe I'll bump into you there. Look for a Ziroli Stuka, in Winter Camo.