RE: Great Planes RV-4 Build w/ pictures
If you could measure it that would be great. I need the prop size since it is the third part of the electric motor+battery+prop=thrust equation. The motor I have in mind would need a 14x7 and 4s battery to get around 110 oz of thrust. I could drop a 5s and 12 inch prop and get about the same but then you start gaining weight.