4*120 Build Thread
I've just started building my 4*120.
I am using an Adjust-O-Jig to build my wing panels. I really like this jig for building any type of straight panel that doesn't have any taper too it. You get a perfectly straight wing, everytime. It takes quite a bit of time to actually set it up. You have to measure out all the rib spacing and then lock the jig down, but it's worth the time and effort.
Here are the first pics of the right wing panel. It took me about 2 hours to set up the jig and get all the ribs set and strapped down. But once I got the CA bottle out--I made quick progress. My total time spent glueing on all these sticks you see in the pics was about 15 minutes.
This plane is designed to have an 81" wingspan. But, since all the stringers, and spars are actually 42" long, I've decided to make each panel 41.5" long. When joined together, I will have an 83" wing. This will increase the wing area from 1205sq.in. up to approx. 1235sq.in.
I'm going to use a Ryobi 31cc gas conversion engine on this plane, and they aren't as light as the 120 size glow engines that are spec'd. for this plane, so I don't think an extra 30sq.in. of wing area will hurt things.
You'll have to pardon the messy work bench. When I start building a kit or assembling an ARF--I don't spend the time to clean the workbench before snapping picks. I put a few pieces together--and then snap a few picks. Then I grab the glue and hit it again. If ya don't like messy workbenches, you probably won't like this build thread. Your going to see a lot of pics with my workbench in various stages of messiness. Rarely clean.