I think that Ralph’s conversions could be a DA-50 killer. We just don't know yet! If you look at the all up weight of the DA and the claimed all up weight of the super light g-62 they are within a couple of oz, and the G-62 more powerful. The problem is, no one has yet corroborated the real weight & power of this g-62. I have seen two recent posts, one of Ralph’s conversions where the engine weighed almost 5lbs and the other that was really at 4# but hasn't been able to run the engine in a plane yet. Although I have owned one of Ralph's very nice conversions (G-38) I would still be inclined to buy the more expensive DA until we see some actual reports.

The problem with the g-62 is the weight, not the power. Most of the new 50cc lightweight 29-30% aerobatic planes are designed around a much lighter engine. You risk turning this kind of plane into a pig with a five or six lb g-62.