have a ZDZ 50 on GP Patty and it hovers at 1/2 throttle. But it weighs in the 17.518 lbs range, with the Smoke in it. It also is running a 22X8 (due to ground clearance) so pretty much, I know I will hover decently well with the 50. Any, I was debating on keeping the 45, but just an hour ago called Horizon for a return authorization number. I think I'll send it back for now, I can always buy anoth when needed.
Hotdog,
I wish I would have mounted a ZDZ 50 on the Patty. It's a lot more powerful than the 40, and I should have not ended adding 12 oz. of weight in the nose to balance. The Lanier Yak will probably fly great with the ZDZ 50 if you shave a pound or so off the total weight. I think the Evolution 58 is about the same weight as the ZDZ 50, with 3.5 more H.P. . 3W 75 cc engines are about 1/2 H.P. less than the Evo, and over a pound heavier. The ZDZ Super 80 is about the same weight as the Evo, have 1 more H.P., but will set you back $825. That's why the Evo 58 was a "no brainer" in my opinion.