I'm using the poor weather as an opportunity to work on finishing my Greenly which is turning into a long time project. The fuselage and tail are done but I am planning to make the wing using the built up method. The wing rib profile I can get from the plan but what spar size should I use? Can anyone help? I was told that a plan for built up wing would be made available but I haven't heard anything since, so with limited design experience I'm giving it a go. Also what can I expect the all up weight to be with a Zenoah 38 up front? It's my first petrol model so there are a lot of grey area's.
Many thanks.