This must sound like a broken record by now -
The ZDZ single -especially the single on a tuned exhaust - simply makes this plane a hoot! Power is just right - read that overkill.
I have mine setup for IMAC flying with the C/G centered on the wing tube -
Friend Steve - at sea level has his model (same setup) with the C/G just aft the tube and 45% throws.
He said that the waterfall ( outside tumble) is so instant that it simply does two in a row as soon as you poke it.
He also has a special H9 Extra same engine setup and lightened also to under 23 lbs. (I made some new wings and tail group for it).
The Cap is a better tumbler. We thought that would be the case ,due to the high thrustline.
We both are haveing a ball with these things - having waded through TOC planes - FAI stuff for years.
I am getting the new H9 Taylorcraft now to try with a ZDZ40.
These are great ARFS
ARF ARF!!