If you have not purchased the motor I would strongly urge you to go with the 70. It is slightly cheaper than the 60/RE2 and slightly lighter with stock muffs. Also easier to tune and less vibes.
I'm not going back on what I said. I wanted to give two examples. However, Enterprise is the go to man up here with data. Maybe a new nickname Matt- "Mr. Data"! Anyway, what Matt offers is theoretical and calculated data backed up with practical testing. He's a good man to do all the research he does and then share it, thanks Matt!His point on the 70 is very valid. If cost isn't going to be an issue (sounds like it's not and isn't a big difference anyway) definitely go with the 70. I haven't mounted mine yet but know it's the right choice for this airframe. Now with Wrong Way coming out with a 23.5oz tank there is a great tank solution too. Please let us know what you do and how it works out. I will be posting my progress when I get the darn thing builtThank You, I think DA60 would be fine for me as i am new to 3D flying and i am not an expert yet. I might change my mind as i won't be ordering a 91" till July. I just ordered a 48" Extra to play around with.
Thank you very much, just ordered!