Several years ago I wanted to build a 1/2A Nobler. Took the plans from Brodak Original Nobler kit and had them reduced to 70%. The spinner at .7 was just a shade under 1.25". I could not locate a 1.25 spinner that I was happy with so thats as far as the project got. Now there are 1" aluminum spinners available from Brodak and also Lee Machine Shop. Anybody ever use either of those ? I am going to use the 1" even thought it will be slightly under scale..
At 70% the span is 35.25" and the area is 265". I know this is pushing the limit of my Norvell .061, but I also have a Norvell .074 for plan B. I will build nose with interchangable mount system for either engine. What is a good target weight for this set-up, I really want it to work with the .061 and not have to go to the .074 ?