Get a Zenoah, either a G-45 or a G-62
Zenoahs are hands down better, more reliable, and last longer than the ZDZ or US engine could ever hope to....
Do you like messing with engines all day, charging ignition batteries, and fixing borken parts ? Get the ZDZ or US...
If you like to fly, and run your engine all day without even thinking about it, then get the Zenoah
JettPilot