ORIGINAL: guille2006
Checked the ZDZ-40: it weights 1233 grams (or 2 pounds and 11.5 Oz) w/o muffler; Isn't a little bit heavy for a 2x2 pattern?
Anyway, it's the cheapest + more powerfull power plant available it seems...
If it's any consolation, that's about the same weight as a good 10S Battery pack. Fortunately, you should get to weigh in without fuel on board so that weight shouldn't be too much of an issue.