RE: 1.20 Edge Review, the beginnings
All of my hardware is 4-40. Go with the OS 1.60. It's cheaper than the 180, unless you already have one, and mine needed the extra weight of the 160 to balance. I had a 180 around, but bought a 160 anyways. Kinda had to since I got one of the ones from the first shipment, but also because I could never get good RPM's with an 18x6 on the 180, but my 160 will turn an 18x6 really good. Plus the 160 is a lot easier on fuel. I had mine up about 7 minutes and the tank was still about 3/4 full. Of course I wasn't doing a lot of heavy 3D, but I was half throttle or better so I'd have plenty of fuel for 3D. My 180 required a 24 oz. tank to stay up 12 minutes doing just loops and rolls. Another choice is the YS 140 Sport. I might get a second for one of these engines.