I know this thread's been dead for awhile, but I have the same question and don't need to open a new thread. I just started my Dazzler kit and I have a choice of two engines to put in it. I have a Tower Hobbies .46 that puts out 1.75HP (according to the specs) and a Thunder Tiger .42 that puts out 1.1HP (again per specs). The TH .46 wieghs 475 grams and the TT.42 weighs 345 grams. They are both well broken in and run great. I have had both on other planes and I like both of them. Which would be a better choice for this plane? I would like vertical performance. Would the TT .42 pull it out of a hover? Or should I go with the TH .46?